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Muscle Practical

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created 4 years ago by jeandoesntknow
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1

Which joint is considered the most flexible joint in the body?

the shoulder joint
the elbow joint
the wrist joint
the hip joint

the shoulder joint

2

Muscles of the shoulder can be divided into groups based on __________.

location (anterior and posterior)
location (superior and inferior)
distribution and functional relationships
size

distribution and functional relationships

3

Which of the following groups of muscles are not muscles of the shoulder?

muscles that stabilize and cross the glenohumeral joint
the rotator cuff muscles
the anterior flexor muscles
muscles that act on the pectoral girdle

the anterior flexor muscles

4

The pectoral girdle consists of the __________.

scapula and humerus
clavicle, scapula, and humerus
clavicle and humerus
clavicle and scapula

clavicle and scapula

5

The primary function of the pectoral girdle is to __________.

act as an attachment point for the rotator cuff muscles
provide the only connection between the arm and the axial skeleton
act as an attachment site for muscles that move the arm
provide the only connection between the humerus and the scapula

act as an attachment site for muscles that move the arm

6

The rhomboideus minor muscle originates on which process on the vertebrae?

Posterior process
Spinous process
Transverse process
Pedicle

Spinous process

7

The four muscles that comprise the posterior group of the pectoral girdle are the __________.

rhomboideus minor, teres minor, trapezius, and levator scapulae
levator scapulae, rhomboideus minor, rhomboideus major, and trapezius
levator scapulae, rhomboideus minor, rhomboideus major, and pectoralis major
pectoralis minor, rhomboideus major, levator scapulae, and trapezius

levator scapulae, rhomboideus minor, rhomboideus major, and trapezius

8

The rotator cuff is a term used to describe the group of muscles and tendons that stabilize and reinforce the __________.

glenohumeral joint
pectoral girdle
scapula
elbow joint

glenohumeral joint

9

All the tendons of the rotator cuff muscles combine at which location?

coranoid process
scapula
radial tuberosity
humeral head

humeral head

10

The action that moves the scapula towards the head is called __________.

protraction
elevation
medial rotation
retraction

elevation

11

Which movement results after the contraction of the serratus anterior muscle?

abduction of the humerus
scapular retraction
scapular elevation
scapular protraction and rotation

scapular protraction and rotation

12

Which movement is not associated with the scapula?

elevation
protraction
depression
opposition

opposition

13

To keep the humeral head centered within the glenoidal cavity the rotator cuff muscles must be __________.

located anteriorly
located distally
located in the same plane
located posteriorly

located in the same plane

14

The location of the rotator cuff muscles in relation to the glenohumoral joint minimizes the upward pressure against the __________.

humerus
acromion of the scapula
clavicle
coracoid process of the scapula

acromion of the scapula

15

The two heads of the biceps brachii muscle converge distally to insert on the __________.

radial tuberosity
ulnar notch
scapula
ulna

radial tuberosity

16

The coracobrachialis muscle originates on the __________.

radial tuberosity
medial surface of the humeral shaft
coracoid process of the scapula
greater tuberosity of the humerus

coracoid process of the scapula

17

The posterior scapular muscle that crosses the glenohumeral joint is the __________.

latissimus dorsi
teres minor
pectoralis major
teres major

teres major

18

All fibers of the pectoralis major muscle converge on the lateral edge of the__________.

radial tuberosity
greater tuberosity
deltoid tuberosity
intertubercular sulcus

intertubercular sulcus

19

The anterior axial muscle that crosses the glenohumeral joint is the pectoralis major muscle.

False
True

True

20

The posterior axial muscle that crosses the glenohumeral joint is the __________.

latissimus dorsi
pectoralis major
brachioradialis
trapezius

latissimus dorsi

21

Of the nine muscles that cross the shoulder joint and insert on the humerus, which muscle is considered to be a prime mover?

coracobrachialis
deltoid
supraspinatus
pectoralis minor

deltoid

22

Paralysis of which of the following would make an individual unable to flex the thigh?

soleus
iliopsoas and rectus femoris
biceps femoris
vastus medialis

iliopsoas and rectus femoris

23

Which muscle group is involved when a "pulled groin" occurs?

quadricepts
hamstrings
lateral rotators
thigh adductors

thigh adductors

24

Which of the following best describes the orbicularis oris?

It closes the eye.
It closes, purses, and protrudes the lips.
It pulls the lower lip down and back.
It draws the eyebrows together.

It closes, purses, and protrudes the lips.

25

Which of the following muscles is not a member of the hamstrings group?

semitendinosus
vastus intermedius
semimembranosus
biceps femoris

vastus intermedius

26

Which of the following muscles fixes and depresses the ribs and stabilizes the pelvis during walking?

rectus abdominis
external oblique
transversus abdominis
internal oblique

rectus abdominis

27

Which of the following muscles is not a rotator cuff muscle?

teres minor
levator scapulae
supraspinatus
subscapularis

levator scapulae

28

The most powerful muscle in the body is the ________.

gluteus maximus
quadriceps femoris
gastrocnemius
rectus abdominis

quadriceps femoris

29

Which of the following is not a muscle primarily involved in the breathing process?

diaphragm
external intercostal
latissimus dorsi
internal intercostal

latissimus dorsi

30

Most superficial thorax muscles are extrinsic shoulder muscles.

T
F

T

31

The major head flexors are the sternocleidomastoid muscles, with the help of the muscles attached to the hyoid bone.

T
F

T

32

Deep muscles of the thorax promote movements for breathing.

T
F

T

33

The muscle that prevents the biting of the cheek when chewing is the buccinator.

T
F

T

34

A nurse can facilitate respiratory functioning by encouraging deep breathing exercises such as diaphragmatic breathing. What is diaphragmatic breathing?

It is the alternating contraction and relaxation of the diaphragm, causing an increase in pressure in the abdominopelvic cavity and facilitating blood flow to the heart.

It is the contraction of the internal intercostals muscles to depress the ribcage, aiding expiration.

It is the contraction of the external intercostal muscles to lift the ribcage, aiding inspiration.

It is the alternating contraction of the external and internal intercostals muscles to aid inspiration and expiration.

It is the alternating contraction and relaxation of the diaphragm, causing a decrease in pressure in the abdominopelvic cavity and facilitating blood flow to the heart.

It is the alternating contraction and relaxation of the diaphragm, causing an increase in pressure in the abdominopelvic cavity and facilitating blood flow to the heart.

35

A young pregnant woman went to a childbirth class and the instructor informed them about strengthening the muscles of the pelvic floor. What are these muscles, and why should she strengthen them?

Levator ani and coccygeus; strengthening these muscles helps in the delivery of the child by resisting downward forces when "pushing."

Gluteus maximus, coccygeus, and levator ani; strengthening these muscles helps in correctly positioning and orienting the child prior to birth.

Coccygeus and gluteus maximus; strengthening these muscles helps in correctly positioning and orienting the child prior to birth.

Ischiocavernosus, coccygeus, and gluteus maximus; strengthening these muscles helps in correctly positioning and orienting the child prior to birth.

Perineal muscle, levator ani, and coccygeus; strengthening these muscles helps in the delivery of the child by resisting downward forces when "pushing."

Levator ani and coccygeus; strengthening these muscles helps in the delivery of the child by resisting downward forces when "pushing."

36

Donna was rushing to class and slipped on a patch of ice and fell backward. An x-ray revealed a broken coccyx. All the associated muscles were bruised. Which muscles were they?

Ischiocavernosus, coccygeus, and gluteus maximus

Gluteus maximus, coccygeus, and levator ani

Perineal muscle, levator ani, and coccygeus

Levator ani and coccygeus

Coccygeus and gluteus maximus

Levator ani and coccygeus

37

Which of the following muscles does not act in plantar flexion?

gastrocnemius and soleus
flexor digitorum longus
tibialis posterior
popliteus

popliteus

38

Paralysis of which of the following muscles would make an individual unable to flex the knee?

gluteal muscles
hamstring muscles
soleus
brachioradialis

hamstring muscles

39

Which of the following muscles is not part of the shoulder?

infraspinatus
brachialis
subscapularis
supraspinatus

brachialis

40

A reduction in the lateral angle of the glenohumeral joint in relation to the anatomical position would be called __________.

extension
adduction
flexion
abduction

adduction

41

Movement of the shoulder laterally away from the body is called __________.

extension
abduction
adduction
flexion

abduction

42

The __________ is a prime mover of the glenohumeral joint during flexion.

coracobrachialis
biceps brachii
teres major
deltoid

deltoid

43

Which of the following muscles assists during extension of the glenohumeral joint, but is not as a prime mover?

latissimus dorsi
biceps brachii
teres major
deltoid

teres major

44

Without lateral rotation of the humerus by the teres minor and infraspinatus muscles, the maximum angle of abduction by the deltoid would be __________.

90 degrees
180 degrees
30 degrees
75 degrees

90 degrees

45

Abduction requires the action of two muscles, and adduction requires the action of __________.

two muscles
four muscles
one muscle
three muscles

four muscles

46

Which of the following muscles serves as a common intramuscular injection site, particularly in infants?

the vastus lateralis
the vastus intermedius
the vastus medialis
rectus femoris

the vastus lateralis

47

Which of the following muscles is involved in inversion at the ankle joint?

peroneus longus
peroneus tertius
extensor digitorum longus
tibialis anterior

tibialis anterior

48

Which of the following muscles is a flexor of the thigh?

gluteus maximus
adductor magnus
vastus lateralis
tibialis posterior

adductor magnus

49

What do the geniohyoid, hyoglossus, and stylohyoid muscles have in common?

All names reflect direction of muscle fibers.

All names indicate the relative size of the muscle.

Each acts synergistically to elevate the jaw.

All act on the tongue.

All act on the tongue.

50

Which muscles is (are) contracted to exhale forcibly?

internal intercostals and rectus abdominus
rectus abdominis and diaphragm
external intercostals and diaphragm
diaphragm alone

internal intercostals and rectus abdominus

51

Tennis players often complain about pain in the arm (forearm) that swings the racquet. What muscle is usually strained under these conditions?

the flexor digitorum profundus
the anconeus
the triceps brachii
the brachioradialis

the brachioradialis

52

Spasms of this straplike muscle often result in wryneck or torticollis.

zygomaticus
serratus anterior
platysma
sternocleidomastoid

sternocleidomastoid

53

A nursing infant develops a powerful sucking muscle that adults also use for whistling. What is this muscle called?

masseter
zygomaticus
platysma
buccinator

buccinator

54

Which of the following is not a member of the hamstrings?

semitendinosus
gracilis
biceps femoris
semimembranosus

gracilis

55

Which of the following muscles inserts by the calcaneal tendon?

the tibialis anterior
the semitendinosus
the sartorius
the gastrocnemius

the gastrocnemius

56

Which of the following muscles is involved in crossing one leg over the other while in a sitting position?

the sartorius
the gastrocnemius
the quadriceps femoris
all of the hamstrings

the sartorius

57

Which group of muscles flexes and rotates the neck?

the spinalis
the scalenes
the iliocostalis
the splenius

the scalenes

58

A cute, little curly-haired child is sitting behind you in church. You turn around for a moment and she sticks her tongue out at you. Which tongue muscle did she use?

genioglossus
stylohyoid
hyoglossus
orbicularis oris

genioglossus

59

Which of the following muscles is involved in producing horizontal wrinkles in the forehead?

the frontal belly of the epicranius
the temporalis
the medial pterygoid
the zygomaticus major

the frontal belly of the epicranius

60

The supraspinatus is named for its location on the posterior aspect of the scapula above the spine. What is its action?

to extend and medially rotate the humerus and to act as a synergist of the latissimus dorsi

to help hold the head of the humerus in the glenoid cavity and rotate the humerus laterally

to stabilize the shoulder joint and help prevent downward location of the humerus and to assist in abduction

to flex and adduct the humerus and to act as a synergist of the pectoralis major

to stabilize the shoulder joint and help prevent downward location of the humerus and to assist in abduction

61

Which of the following describes the suprahyoid muscles?

They are often called strap muscles.

They move the pharynx superiorly during swallowing.

They are a group of muscles that lie superior to the hyoid bone and help form the floor of the oral cavity.

They depress the larynx and hyoid bone if the mandible is fixed.

They are a group of muscles that lie superior to the hyoid bone and help form the floor of the oral cavity.

62

The hamstring muscles originate on the __________.

medial surface of the tibia
lesser trochanter of the femur
ischial tuberosity
medial surface of the fibula

ischial tuberosity

63

To allow for flexion, the __________ unlocks the knee joint.

biceps femoris
semimembranosus
sartorius
popliteus

popliteus

64

The temporalis muscle originates on the __________ and inserts on the __________.

zygomatic arch; temporal fossa
temporal fossa; zygomatic arch
temporal process; mandibular fossa
temporal fossa; coronoid process of mandible

temporal fossa; coronoid process of mandible

65

The temporalis muscle is innervated by the mandibular branch of the __________.

abducens nerve
trochlear nerve
optic nerve
trigeminal nerve

trigeminal nerve

66

The masseter muscle originates on the __________.

medial surfaces of the maxilla and the zygomatic arch as well as the inferior border of the zygomatic arch

medial surface of maxilla, but not the zygomatic arch

inferior border of the zygomatic arch only

medial and lateral surfaces of the maxilla and the inferior and superior border of the zygomatic arch

medial surfaces of the maxilla and the zygomatic arch as well as the inferior border of the zygomatic arch

67

The masseter is innervated by the _____________ branch of the trigeminal nerve.

maxillary
mandibular
ophthalmic
lingual

mandibular

68

The buccinator muscle is innervated by the __________.

trigeminal nerve
abducens nerve
facial nerve
vagus nerve

facial nerve

69

At its insertion (unlike at its origin), the buccinator muscle __________.

attaches to a prominent point on the mandible
attaches to fibers of another facial muscle
converges on a single process of the mandible
attaches at two distinct sites on the bone

attaches to fibers of another facial muscle

70

The buccinator muscle __________.

compresses the cheeks
raises the corners of the mouth
does not function during chewing
purses the lips

compresses the cheeks

71

The insertion of the supraspinatus muscle is on the __________.

lesser tubercle of the humerus
intertubercular groove of the humerus
spinous process of the scapula
greater tubercle of the humerus

greater tubercle of the humerus

72

The trapezius muscle may be separated into all of the following groups, except __________.

middle
lateral
superior
inferior

lateral

73

All fibers of the trapezius muscle are innervated by the __________.

spinal accessory nerve
axillary nerve
scapular nerve
coxal nerve

spinal accessory nerve

74

The infraspinatus inserts on the ____________ of the humerus.

lesser tubercle of the humerus
coranoid process of the scapula
greater tubercle of the humerus
acromial process of the scapula

greater tubercle of the humerus

75

The infraspinatus muscle is included in the __________ muscles.

rotator cuff
lateral rotator
medial rotator
respiratory muscles of the shoulder

rotator cuff

76

The latissimus dorsi inserts __________.

on the greater tubercle of the humerus
on the intertubercular groove of the humerus
on the deltoid tuberosity of the humerus
on the lesser tubercle of the humerus

on the intertubercular groove of the humerus

77

One of the actions of the latissimus dorsi muscle is to __________.

adduct the arm
lateral rotation of the arm
abduct the arm
flex the arm

adduct the arm

78

The subscapularis muscle inserts on the __________.

greater tubercle of the humerus
intertubercular groove of the humerus
lesser tubercle of the humerus
deltoid tuberosity of the humerus

lesser tubercle of the humerus

79

The muscles of facial expression insert into skin or other muscles, not bones.

True
False

T

80

Muscles connecting to the hyoid bone are important for swallowing and speech.

True
False

T

81

Muscle spasms of the back often are due to the erector spinae contraction.

True
False

T

82

The broadest muscle of the back is the latissimus dorsi.

T
F

T

83

The calcaneal tendon (Achilles tendon) is the largest, strongest tendon in the body.

True
False

T

84

In order to propel food down to the esophagus, the pharyngeal constrictor muscles are used.

T
F

T

85

The soleus is a synergist of the gastrocnemius during plantar flexion.

T
F

T

86

The deltoid is a prime mover of the arm that acts in adduction.

T
F

F

87

First-class levers ________.

in the body can operate at a mechanical advantage or mechanical disadvantage, depending on specific location

have load at one end of the lever, fulcrum at the other, and effort applied somewhere in the middle

are typified by tweezers or forceps

are the type using joints forming the ball of the foot as formed in raising the body on the toes

in the body can operate at a mechanical advantage or mechanical disadvantage, depending on specific location

88

What are the levers that operate at a mechanical advantage called?

functional levers
power levers
speed levers
dysfunctional levers

power levers

89

If L = load, F = fulcrum, and E = effort, what type of lever system is described as LEF?

second-class lever
fourth-class lever
first-class lever
third-class lever

third-class lever

90

If a lever operates at a mechanical disadvantage, it means that the ________.

load is near the fulcrum and the effort is at the distal end

lever system is useless

load is far from the fulcrum and the effort is applied near the fulcrum

effort is farther than the load from the fulcrum

load is far from the fulcrum and the effort is applied near the fulcrum

91

What is the main factor that determines the power of a muscle?

the shape

the number of neurons innervating it

the total number of muscle cells available for contraction

the length

the total number of muscle cells available for contraction

92

What is the major factor controlling how levers work?

the difference in the positioning of the effort, load, and fulcrum

the structural characteristics of the muscles of the person using the lever

the direction the load is being moved

the weight of the load

the difference in the positioning of the effort, load, and fulcrum

93

Which type of lever is demonstrated by using scissors?

a first-class lever
a second-class lever
a third-class lever
a fourth-class lever

a first-class lever

94

Muscle power does not depend on the direction of the fascicles.

True
False

T

95

The arrangement of a muscle's fascicles determines its range of motion and power.

T
F

T

96

Regardless of type, all levers follow the same basic principle: effort farther than load from fulcrum = mechanical advantage; effort nearer than load to fulcrum = mechanical disadvantage.

True
False

T

97

Although all skeletal muscles have different shapes, the fascicle arrangement of each muscle is exactly the same.

T
F

F

98

Both first- and second-class levers operate at a mechanical disadvantage.

True
False

F

99

A pair of tweezers is a good example of a second-class lever.

T
F

F

100

A muscle that opposes, or reverses, a particular movement is a(n) ________.

synergist
fixator
antagonist
agonist

antagonist

101

What muscle is primarily responsible for preventing foot drop?

extensor digitorum longus
tibialis anterior
extensor hallucis longus
fibularis tertius

extensor digitorum longus

102

Which of these is not a way of classifying muscles?

the type of action they cause
the type of muscle fibers
muscle shape
muscle location

the type of muscle fibers

103

The names of muscles often indicate the action of the muscle. What does the term levator mean?

The muscle functions as a synergist.
The muscle flexes and rotates a region.
The muscle is a fixator and stabilizes a bone or joint.
The muscle elevates and/or adducts a region.

The muscle elevates and/or adducts a region.

104

When the term biceps, triceps, or quadriceps forms part of a muscle's name, what does it tell you about the muscle?

The muscle has two, three, or four origins, respectively.
The muscle has two, three, or four insertions, respectively.
The muscle has two, three, or four functions, respectively.
The muscle is able to change direction twice, three times, or four times faster than other muscles, respectively.

The muscle has two, three, or four origins, respectively.

105

Muscles that help maintain upright posture are fixators.

True
False

T

106

Which generalization concerning movement by skeletal muscles is not true?

The movements produced may be of graded intensity.

The bones serve as levers.

During contraction the two articulating bones move equally.

Muscles produce movement by pulling on bones.

During contraction the two articulating bones move equally.

107

What type of muscle assists an agonist by causing a like movement or by stabilizing a joint over which an agonist acts?

an antagonist
an agonist
a synergist
a prime mover

a synergist

108

The insertion of the teres minor is on the __________.

lesser tubercle of the humerus
intertubercular groove of the humerus
greater tubercle of the humerus
lateral border of the scapula

greater tubercle of the humerus

109

The teres major adducts the arm but does not __________ the arm.

abduct
extend
medially rotates
medially rotate or extend

abduct

110

The pectoralis minor muscle is innervated by the __________.

ulnar nerves
clavicular nerves
pectoral nerves
sternal nerve

pectoral nerves

111

The origins of the levator scapula are from the ___________ of four cervical vertebrae.

fascia
transverse processes
spinous processes
bodies

transverse processes

112

The rhomboid minor muscle sits __________.

inferior to the rhomboid major
deep to the rhomboid major
superficial to the rhomboid major
superior to the rhomboid major

superior to the rhomboid major

113

The actions of the rhomboid major on the scapula do not include __________.

medial rotation
elevation
adduction
lateral rotation

lateral rotation

114

The origin of the serratus anterior includes __________ ribs.

six
eight
ten
seven

eight

115

Part A

The actions of the internal obliques include __________.

compression of the rib cage to assist in forced expiration
compression of the abdomen to assist in forced inspiration
compression of the rib cage to assist in forced inspiration
compression of the abdomen to assist in forced expiration

compression of the abdomen to assist in forced expiration

116

The actions of the internal intercostals are most important during __________.

normal expiration
forced expiration
forced inspiration
normal inspiration

forced expiration

117

The origin of the external obliques includes ribs __________.

six through twelve
seven through twelve
eight through twelve
five through twelve

five through twelve

118

The origins of the rectus abdominus muscle are on the __________.

ischial bone
sacral bone
ileum bone
pubic bone

pubic bone

119

The external intercostals elevate the rib cage during __________.

neither inspiration nor expiration
expiration
both expiration and inspiration
inspiration

inspiration

120

The two heads of the biceps brachii combine to insert on the __________.

radial notch
olecranon process
ulnar notch
radial tuberosity

radial tuberosity

121

The transversus abdominus muscle is innervated by the __________.

intercostals nerves
thoracic nerve
inguinal nerve
left scapular nerve

intercostals nerves

122

All fibers of the triceps brachii are innervated by the __________.

axillary nerve
radial nerve
ulnar nerve
humeral nerve

radial nerve

123

Of all the flexor muscles of the forearm, the __________ is the shortest.

flexor digitorum superficialis
flexor ulnaris
pronator teres
flexor carpi radialis longus

pronator teres

124

The tensor fasciae latae stabilizes the hip joint and the __________ joint.

ankle
sacral
knee
elbow

knee

125

The origin of the Sartorius muscle is from the __________ spine.

anterior inferior iliac
posterior superior iliac
anterior superior iliac
posterior inferior iliac

anterior superior iliac

126

The origin that the vastus medialis muscle shares with the vastus lateralis is the __________.

linea aspera of the femor
lesser trochanter
patellar tendon
greater trochanter

linea aspera of the femor

127

The vastus intermedius __________ the leg at the knee.

medially rotates
laterally rotates
extends
flexes

extends

128

All fibers of the semimembranosus muscle converge to insert on the __________.

posterior tibia
anterior femur
posterior femur
anterior tibia

posterior tibia

129

The semimembranosus __________ the thigh at the hip and __________ the leg at the knee.

abducts; flexes
adducts; extends
extends; flexes
flexes; extends

extends; flexes

130

The vastus lateralis is innervated by the __________.

fibular nerve
femoral nerve
tibial nerve
sacral nerve

femoral nerve

131

The majority of the fibers of the gluteus maximus insert onto the __________.

ileotibial tract
inferior border of the os coxae
superior border of the os coxae
gluteal tuberosity

ileotibial tract

132

The gluteus maximus is the most powerful muscle during __________.

medial rotation
flexion
lateral rotation
extension

extension

133

The semitendinosus muscle lies ______________ to the semimembranosus muscle.

deep
posterior
lateral
anterior

posterior

134

The semitendinosus muscle is innervated by the __________ nerve.

coxal
tibial portion of the sciatic
patellar
femoral

tibial portion of the sciatic

135

The origins of the lateral head of the gastrocnemius muscle are the __________.

lateral condyle and posterior surface of the femur
medial condyle and posterior surface of the femur
patellar surface and anterior surface of the femur
patellar surface and posterior surface of the femur

lateral condyle and posterior surface of the femur

136

The gastrocnemius muscle is innervated by the __________.

tibial nerve
fibular nerve
plantar nerve
ulnar nerve

tibial nerve

137

The two heads of the gastrocnemius muscle converge to insert onto __________.

digits two through five
the middle phalanx of digit one
the calcaneus
the posterior surface of the tibia

the calcaneus

138

The tibialis anterior muscle dorsiflexes the foot at the ankle and also assists in __________ of the foot.

extension
eversion
inversion
plantar flexion

inversion

139

The gluteus medius muscle is innervated by the __________.

superior gluteal nerve
inferior coxial nerve
inferior gluteal nerve
superior coxial nerve

superior gluteal nerve

140

The tibialis posterior muscle originates at which three locations?

tibia, fibula, and interosseous membrane

tibia, patellar surface, and interosseous membrane

tibia, femur, and interosseous membrane

fibula, patellar surface, and interosseous membrane

tibia, fibula, and interosseous membrane

141

Both heads of the biceps femoris muscle __________.

flex the hip
extend the hip
flex the leg at the knee
extend the leg at the knee

flex the leg at the knee

142

The long head of the biceps femoris muscle originates on the __________.

ischial tuberosity
posterior superior iliac spine
anterior superior iliac spine
iliac crest

ischial tuberosity

143

The biceps femoris is located in the __________.

posterior thigh
posterior arm
anterior thigh
anterior arm

posterior thigh

144

The soleus muscle shares an insertion with the __________.

flexor digitorum longus
gastrocnemius muscle
flexor hallucis longus
fibularis longus muscle

gastrocnemius muscle

145

The soleus muscle __________ the foot at the ankle and is innervated by the __________.

extends; tibial nerve
extends; fibular nerve
flexes; tibial nerve
flexes; fibular nerve

flexes; tibial nerve

146

Which muscle is not part of the rotator cuff?

infraspinatus muscle
teres major muscle
teres minor muscle
supraspinatus muscle

teres major muscle

147

Downward dislocation of the humerus from the glenohumeral joint when carrying weight is prevented by the __________.

subscapularis muscle
teres minor muscle
supraspinatus muscle
infraspinatus muscle

supraspinatus muscle

148

The angle of which muscle prevents the humeral head from sliding upward out of the joint as the arm is raised?

subscapularis
teres minor
supraspinatus
infraspinatus

subscapularis

149

________ are the muscles primarily responsible for producing a particular movement.

Fixators
Synergists
Agonists
Antagonists

Agonists

150

Which functional group has the major responsibility for producing a specific movement?

agonists
antagonists
fixators
synergists

agonists

151

Which of the following muscles is named for its origin and insertion?

deltoid
gluteus maximus
sternocleidomastoid
trapezius

sternocleidomastoid

152

Which of the following muscles is named for its action?

gluteus minimus
frontalis
biceps brachii
levator labii superioris

levator labii superioris

153

Which of the following is NOT used as a criterion for naming muscles?

the locations of the muscle attachments
the shape of the muscle
the location of the muscle
whether the muscle is controlled by the involuntary or voluntary nervous system
the number of origins for the muscle

whether the muscle is controlled by the involuntary or voluntary nervous system

154

Which is CORRECTLY matched?

brevis: long
rectus: straight
deltoid: at a right angle to the long axis
transverse: parallel to the long axis

rectus: straight

155

Which of the following is CORRECTLY matched?

convergent arrangement of fascicles: fan shaped muscle
parallel arrangement of fascicles: characteristic of sphincter muscles
circular arrangement of fascicles: describes the deltoid muscle
pennate arrangement of fascicles: spindle-shaped muscle

convergent arrangement of fascicles: fan shaped muscle

156

Which of the following movements demonstrates a first-class lever?

standing on your toes
flexing your knee to raise your heel toward your buttocks
lifting a rock with your right hand and arm
raising your head up off your chest

raising your head up off your chest

157

Most skeletal muscles of the body act in ________.

first-class lever systems
power lever systems
second-class lever systems
third-class lever systems

third-class lever systems

158

The more a muscle shortens during a contraction, the greater the power of the muscle.

True
False

F

159
card image

Which letter represents the masseter muscle? Select from letters A-D.

A
B
C
D

D

160
card image

Which muscle tenses the skin of the neck, such as during shaving? Select from letters A-D.

A
B
C
D

B

161
card image

Identify the transversus abdominis muscle. Select from letters A-D.

A
B
C
D

A

162
card image

Which muscle originates on the pubic crest and symphysis and inserts on the xiphoid process and costal cartilages of ribs five through seven? Select from letters A-D.

A
B
C
D

D

163
card image

Which muscle is used in sit-ups? Select from letters A-D.

D

164
card image

Which muscle is the prime mover of arm abduction? Select from letters A-E.

E

165
card image

Which muscle inserts on the greater tubercle of the humerus? Select from letters A-D.

C

166
card image

Select the infraspinatus muscle. Choose from letters A-D.

C

167
card image

Which letter represents the deltoid? Select from letters A-D.

A

168
card image

Which muscle is the prime mover of arm abduction? Select from letters A-D.

A

169
card image

Which muscle is known as the "boxer's muscle" for its ability to move the arm horizontally, as if throwing a punch? Select from letters A-D.

D

170
card image

Which muscle has three origins? Select from letters A-D.

D

171
card image

Which muscle is an antagonist to the biceps brachii muscle? Select from letters A-D.

D

172
card image

Select the sartorius muscle. Choose from letters A-D.

B

173
card image

Which muscle helps a person to cross a leg when seated? Select from letters A-D.

B

174
card image

Identify the gluteus maximus muscle. Select from letters A-D.

B

175
card image

Identify the soleus muscle. Select from letters A-D.

B

176

The primary function of the deep muscles of the thorax is to promote ________.

breathing
vomiting
back posture
swallowing

breathing

177

The muscle that subdivides the ventral body cavity into the thoracic and abdominopelvic cavities is the ________.

transversus abdominis
quadratus lumborum
internal oblique
diaphragm

diaphragm

178

The main forearm extensor is the ________.

palmaris longus
supinator
triceps brachii
biceps brachii

triceps brachii

179

The ________ muscles compress the cheeks to help keep food between the grinding surfaces of the teeth while chewing.

medial pterygoid
temporalis
buccinator
masseter

buccinator

180

Which is(are) the most important muscle(s) of inspiration (inhalation)?

external intercostals
diaphragm
internal intercostals
rectus abdominis

diaphraghm

181

Which of the following is a hamstring muscle?

vastus medialis
rectus femoris
biceps femoris
fastus lateralis

biceps femoris

182

Which of the following is NOT a rotator cuff muscle?

subscapularis
teres major
supraspinatus
infraspinatus

teres major

183

Electromyography is the recording and interpretation of graphic records of the electrical activity of contracting muscles.

True
False

T

184

Muscles are only able to pull, they never push.

True
False

T

185

Muscles that help to maintain posture are often called synergists.

True
False

F


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