Functions of the vertebral column/Embryology of the Vertebral Column Flashcards Preview

Spinal Exam One > Functions of the vertebral column/Embryology of the Vertebral Column > Flashcards

Flashcards in Functions of the vertebral column/Embryology of the Vertebral Column Deck (26):
1

What levels of the vertebral column specifically accommodate weight-bearing transfer

S1-S3 at the auricular surface

2

What organ(s) is/are specifically associated with the horizontal axis of the skull

the eye and the vestibular apparatus of the inner ear

3

When does the embryonic disc form

second week in utero

4

When does gastrulation occur or a 3 layered embryo form

third week in utero

5

Invagination of ectoderm along the primitive streak gives rise to what embryonic structure

notochord

6

What is the name given to the mesoderm that will give rise to the vertebral column

paraxial mesoderm

7

What embryonic structure gives rise to the somites

paraxial mesoderm

8

Name the areas of cellular differentiation formed within the somite

sclerotome, myotome and dermatome

9

What are the names of the successive vertebral columns formed during development

membranous cartilaginous, skeletal or osseous

10

Migration of a somite pair to surround the notochord forms what developmental feature

the perichordal lastema

11

the perichordal blastema gives rise to what processes

neural processes and costal processes

12

What is the name of the artery located between adjacent perichordal blastemae

intersegmental artery

13

What forms between the scleromites of a perichordal blastema

ther intersclerotomal fissure (fissure von Ebner)

14

The intersclerotomal fissure (fissure von Ebner) gives rise to what developmental feature

the perichordal disc

15

The union of a dense caudal sclerotomite and a loose cranial sclerotomite from adjacent perichordal blastemae gives rise to what feature

the vertebral blastema

16

Wha tvessel will be identified adjacent ot the vertebral blastema

segmental artery

17

When will cartilage first form in the membranous vertebral blastema

beginning in the 6th embryonic week

18

What is the name given to the replacement of mesoderm by cartilage

chondrification

19

What are the names given to the centers of chondrification within the vertebral blastema

centrum center, neural arch center, transverse process center

20

How many centers of chondrification typically appear in the vertebral blastema

six------2 for the centrum, 2 for the neural arches, 2 for each transverse process

21

What is the earliest time that centers of ossification appear in the cartilaginous vertebrae

during the seventh week in utero

22

What is the name given to the centers of ossification based on time of appearance

primary centers appear in utero, secondary centers appear after birth

23

What is the ratio of primary to secondary centers of ossification for a typical vertebrae

3 primary centers and 5 secondary centers

24

What are the names of the primary centers of ossification for a typical vertebrae

centrum centers and neural arch centers

25

What are the names/locations of the five secondary centers of ossification for a typical vertebrae

tip of the Transverse process, tip of the spinous process, epiphyseal plate centers

26

What is the range of appearance for secondary centers of ossification of a typical vertebrae

during puberty, typically ages 11-16 years old