Embryology

Question 1

nervous system develops from

Answer 1

dorsal ectoderm

Question 2

what is the earliest indication of the nervous system?

Answer 2

neural plate

Question 3

the nerual tube becomes?

Answer 3

brain and spinal cord

Question 4

neural crest cells develop into:

Answer 4

sympathetics, meninges, schwann cells, melanocytes, branchial arches, adrenal medulla, DRGs, meissners, aurbachs plexus

Question 5

what is the mneumonic for neural crest cells

Answer 5

2x SM BAD MA

Question 6

Paraxial: skeletal muscle of trunk head and neck form from?

Answer 6

mesoderm

Question 7

adenohypophysis forms from

Answer 7

ectoderm

Question 8

epithelial lining of post 1/3 of tongue, floor of mouth ect. forms from

Answer 8

endoderm

Question 9

epithelial lining of GI tract forms from

Answer 9

endoderm

Question 10

epidermis forms from

Answer 10

ectoderm

Question 11

hepatocytes and lining of biliary tree forms from

Answer 11

endoderm

Question 12

all neurons of CNS forms from

Answer 12

ectoderm

Question 13

acinar cells, islet cells, pancratic duct forms from

Answer 13

endoderm

Question 14

intermediate: kidneys, testes, ovaries, genital ducts forms from

Answer 14

mesoderm

Question 15

lateral: skeletal muscles of the limb forms from

Answer 15

mesoderm

Question 16

neruohypophysis forms from

Answer 16

ectoderm

Question 17

what comes from pharyngeal pouch 1

Answer 17

epithial lining of auditory tube and middle ear

Question 18

what comes from pharyngeal pouch2

Answer 18

epithial lining of palatine crypts

Question 19

what comes from pharyngeal pouch 3

Answer 19

inf parathyroid gland and thymus

Question 20

what comes from pharyngeal pouch 4

Answer 20

superior parathyroid gland, parafollicular cells of thyroid