spinal anatomy embryology

Question 1

paraxial mesoderm gives rise to

Answer 1

vertebral column and its adjacent musculoskeletal structures

Question 2

intermediate mesoderm gives rise to

Answer 2

genitourinary system

Question 3

lateral mesoderm becomes continuous with the coverings of the

Answer 3

amnion and primitive yolk sac

Question 4

what forms somites?

Answer 4

paraxial mesoderm

Question 5

what are the 3 cellular differentiations of somites?

Answer 5

sclerotome
myotome
dermatome

Question 6

what gives rise to the vertebral column?

Answer 6

sclerotome

Question 7

what gives rise to the vertebral muscles?

Answer 7

myotome

Question 8

what are the 3 vertebral columns formed by the migration of the sclerotome?

Answer 8

membranous
cartilaginous
skeletal

Question 9

what gives rise to the notochord?

Answer 9

ectoderm

Question 10

what are the 3 primary centers of ossification of the vertebral column

Answer 10

1 centrum

2 neural arches

Question 11

what are the 5 secondary ossification centers of the vertebral column?

Answer 11

2 tip of transverse process
tip of spinous process
epiphyseal plate regions of vertebral body

arise btw 11-16 and fuse by 25

Question 12

what forms the costal processes?

Answer 12

sclerotome

Question 13

what forms the perichordal blastema?

Answer 13

sclerotomites

Question 14

The intrasclerotomal fissure of von Ebner gives rise to what developmental feature?

Answer 14

perichordal disc

Question 15

The perichordal disc is the presumptive location of what adult feature?

Answer 15

intervertebral disc

Question 16

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

Answer 16

chondrification