1. Neurodevelopment part 1

Question 1

half the _____ genes are involved in the development of the NS

Answer 1

protein coding genes

Question 2

most neuronal production and migration occurs during the ___ through ___ mo. of development

Answer 2

3rd- 5th mo.

Question 3

the formation of neural connections called ____ and myelin sheaths conti after birth

Answer 3

neuropil

Question 4

gliogenesis takes place during the ___ and ___ trimesters of pregenancy and early postnatal development

Answer 4

2nd and 3rd tri

Question 5

_____ occurs during the morula stage

Answer 5

totipotent

Question 6

_____ occurs during the late blastocyst stage

Answer 6

pluripotent

Question 7

____ is the ability of a single cell to divide and produce all of the differentiated cells in an organism,

Answer 7

totipotency

Question 8

_______:a stem cell that has the potential to differentiate into any of the three germ layers

Answer 8

pluripotent

Question 9

___derm gives rise to the NS and skin

Answer 9

ectoderm

Question 10

____derm gives rise to the skeleton and musculature

Answer 10

mesoderm

also known as the notochord

Question 11

___derm gives rise to the gut tube

Answer 11

endoderm

Question 12

_____ : process of forming the neural tube from ectoderm

Answer 12

neuralation

Question 13

______: how neural tis becomes differ. tiss

Answer 13

neural induction

Question 14

______ provides neural inducing morphogens to the ectoderm

Answer 14

mesoderm

Question 15

_______: is a bone morphogenic signal that makes ectoderm skin

Answer 15

BMP

Question 16

the ____ blocks the signalling from BMP so that ectoderm will become neural tis instead
of skin

Answer 16

notochord

Question 17

_______: a specific signal that decides the fate of a differentiating cell

Answer 17

amorphagen

Question 18

(3) factos that are involved during neurulation

Answer 18

1. formation of neural plate
2. neural plates become neural groove surrounded by crest
3. groove becomes closed neural tube

Question 19

c.c. ____ : results from incomplete caudal neural tube closure

Answer 19

spina bifida

Question 20

c.c. _______: spina bifida that results in the meninges + CSF being enclosed in a sac

Answer 20

meningocele

Question 21

c.c. ______: spina bifida that results in the SC, meninges and CSF enclosed in a sac

Answer 21

meningomyelocele

more dangerous

Question 22

c.c._______: is spinda bifida that has a piece of tiss that covers the open area

Answer 22

spina bifida occulta

Question 23

c.c. ______: results from incomplete rostral neural tube closure

Answer 23

anencephaly

Question 24

c.c._______: brain that doesnt have meninges over it

Answer 24

encephalocele

Question 25

_____ is a supp. that mothers can take to helps the neural tube to close

Answer 25

folate

Question 26

the neural tube closes around the ___ wk

Answer 26

3wk

Question 27

_____= forebrain

Answer 27

prosecephalon

Question 28

___= midbrain

Answer 28

mesencephalon

Question 29

____= hindbrain

Answer 29

rhombencephalon