Cancel
© 2016 pictureone.ru
card-image
camera

Exercise 12: The Fetal Skeleton

Set Details Share
Helpfulness: +12
created 6 years ago by jncanf
77,990 views

pg. 167 - pg. 168

Grade levels:
College: First year, College: Second year, College: Third year, College: Fourth year, Graduate school, Professional

show more
1

Are the same skull bones seen in the adult also found in the fetal skull?

No, some areas still remain to be converted to bone.

2

How does the size of the fetal face compare to its cranium?

Face is smaller

3

How does this compare to the adult skull?

Adult skull is 1/8th total body length whereas the fetal skull is 1/4th total body length

4

What are the outward conical projections on some of the fetal cranial bones?

These are ossification centers

5

What is a fontanel?

Fibrous membranes between the bones of a fetal skull

6

What is its fate? (fontanel)

becomes bone by 22 months

7

What is the function of the fontanels in the fetal skull?

Allows skull to be compressed during birth and allows for brain growth during late fetal life.

8

Describe how the fetal skeleton compares with the adult skeleton in the following areas:

vertebrae

Fetus=33 Adult=24

The 5 sacral and 4 coccyx bones of the fetus fuse together - that's why adults only have 24

9

Describe how the fetal skeleton compares with the adult skeleton in the following areas:

coxal bones

In the adult skeleton the coxal bones have fused (ischium, pubic, and ilium), while in the fetal skeleton these bones have not fused.

10

Describe how the fetal skeleton compares with the adult skeleton in the following areas:

carpals and tarsals

The carpals and tarsals are not ossified in the fetus.

11

Describe how the fetal skeleton compares with the adult skeleton in the following areas:

sternum

Its component parts are not fused in the fetus.

12

Describe how the fetal skeleton compares with the adult skeleton in the following areas:

frontal bone

The frontal bone is split at the midsaggital line at the metopic suture. In adults, the suture closes, creating a solid bone.

13

Describe how the fetal skeleton compares with the adult skeleton in the following areas:

patella

May be absent in the fetus; if present it is unossified.

Quite a bit softer and smaller in the fetus. The kneecap develops throughout childhood and into mid-teens.

14

Describe how the fetal skeleton compares with the adult skeleton in the following areas:

thoracic cage

In a fetus the rib cage is compressed laterally froming a pointed anterior rib cage surface.
The thorax becomes more rigid with age, costal cartilages ossify

15

How does the size of the fetus's head compare to the size of its body?

it is much larger leaving the body look too small; than if you compare an adult head to its body it seems to have better proportion.

16
card image
card image
17
card image

Fetal Skeleton (Image)

18
card image
card image
19
card image
card image
20
card image
card image
21
card image
card image

Related pages


appendicular skeleton anatomyis 118 a good iq scorewhy are males more likely to be colorblind than femalesdifference between alimentary canal and accessory organsforearm extensionin flowering plants meiosis occurs specifically in thediplobacillus bacteriawhich of the following is true concerning flowering plantsa cancerous growth on the skin will likely exhibitcampbell ap biology 9th edition study guideprotein translation chartadductor magnus exerciseretroperitoneal organthe cell and inheritance worksheet answersabnormal condition of mucus like material under the skinjejunum histology labeleddose of antitubercular drugs2 methyl 2 pentanolwhere is lymphatic system locatednormal hct valuedangling choroid sign5 conditions of hardy weinberg equilibriuma strong flexible connective tissuelymphatic system labeling quizhuman anatomy bookskin and integumentary systemequilibrium ear balancerotates scapulalabelled diagram of human braindo all arteries carry oxygen rich bloodreview sheet exercise 32 anatomy of blood vessels answersdwarfism inheritancewhat is an immovable joint calledstaphylococcus aureus shapewhat causes cross bridge detachmenthow does an aponeurosis differ from a tendon structurallyhesi pharmacology study guidewhere are neurotransmitter receptors locatedwhere do t cells become immunocompetentinheritance of polydactylyfunction of the hypodermisserum seperator tubedecreased adhwhich of the following is not a subatomic particlewhere is the cerebrum locatedthymus functionswhat do we call a virus that attacks a bacteriumwhat is found in the medulla of the kidneymature babsnarcoleptic comaatrioventricular valves open whenwords with root credlocomotion of poriferamanitol saltfunction of arachnoid villisynarthrotic jointswoodcut notecardscpt code for discharge summarylegal terminology quizthalamic neurons that project to the primary sensory cortex arewhich area would contain an abundance of vesicles containing neurotransmittersperms in urineneuron diagram quizhow inheritance by multiple alleles and polygenic inheritance are similarphlebitis thighanatomy and physiology quiz mariebthe phospholipids of membranes arebone microscopic structurenuclei in cnssubtracting rootsflat bones of the skull develop frommuscular system deltoidstructure of a digestive systemdigestive system exam163 cm convert to feetpractice microbiology exams