1. Neurodevelopment part 1 Flashcards Preview

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Flashcards in 1. Neurodevelopment part 1 Deck (29):
1

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

protein coding genes

2

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

3rd- 5th mo.

3

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

neuropil

4

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

2nd and 3rd tri

5

_____ occurs during the morula stage

totipotent

6

_____ occurs during the late blastocyst stage

pluripotent

7

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

totipotency

8

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

pluripotent

9

___derm gives rise to the NS and skin

ectoderm

10

____derm gives rise to the skeleton and musculature

mesoderm
(also known as the notochord)

11

___derm gives rise to the gut tube

endoderm

12

_____ : process of forming the neural tube from ectoderm

neuralation

13

______: how neural tis becomes differ. tiss

neural induction

14

______ provides neural inducing morphogens to the ectoderm

mesoderm

15

_______: is a bone morphogenic signal that makes ectoderm skin

BMP

16

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

notochord

17

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

amorphagen

18

(3) factos that are involved during neurulation

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

19

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

spina bifida

20

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

meningocele

21

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

meningomyelocele

(more dangerous)

22

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

spina bifida occulta

23

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

anencephaly

24

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

encephalocele

25

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

folate

26

the neural tube closes around the ___ wk

3wk

27

_____= forebrain

prosecephalon

28

___= midbrain

mesencephalon

29

____= hindbrain

rhombencephalon