Vertebral Column - Embryology Flashcards Preview

My NBCE - Spinal Anatomy > Vertebral Column - Embryology > Flashcards

Flashcards in Vertebral Column - Embryology Deck (18)
Loading flashcards...
1

vertebra develops in what?

Mesoderm

2

What guides the development of the vertebral column and the spinal cord?

notochord

3

Condensations of mesoderm around the notochord are called?

somites

4

Somites develop what there "tomes"

sclerotomes
myotomes
dermatomes

5

The vertebral bodies develop from which "tome"

sclerotome

6

How many primary ossification centers for the vertebra? What are they?

3
Centrum (for body
R/L halves of neural arch

7

How many secondary ossification centers for the vertebra? What are they?

5
Spinous process
R/L transverse processes
Upper and lower vertebral endplates

8

Myotomes: somatic develops?

Skeletal muscles

9

Myotomes: splanchnic develops?

Smooth muscles

10

Myotomes: epimere develops?

Extension muscles

11

Myotomes: hypomere develops?

Flexor muscles

12

Dermatomes develops?

Peripheral nerves and dermis

13

What is it called when mesoderm is replaced by cartilage?

chondrification

14

Cartilage is replaced by bone?

ossification

15

Bone is formed within a membrane is called?

intramembranous ossification

16

Bone is formed within cartilage?

intracartilaginous ossification

17

What bones are intramembranous ossification?

Flat bones of skull and clavicle

18

What bones are intracartilaginous ossification?

Long bones, base of skull, vertebral column, and ribs