Neuro Embryology High Yield Flashcards Preview

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Flashcards in Neuro Embryology High Yield Deck (35):
1

When does neurulation begin?

3 weeks

2

How does the neural plate (neuroectoderm) form?

Notocord ncudes overlying ectoderm to form neuroectoderm

3

What is the alar plate (dorsal)?

Sensory

4

What is the basal plate (ventral)?

Motor

5

What is the adult derivative of the Telencephalon?

Cerebral hemisphere and lateral ventricles

6

What is the adult derivative of the diencephalon?

Thalamus and 3rd ventricle

7

What is the adult derivative of the mesencephalon?

Midbrain and Cerebral aqueduct

8

What is the adult derivative of the metencephalon?

Pons and Cerebellum, upper part of the 4th ventricle

9

What is the adult derivative of the myelencephalon?

Medulla and lower part of the 4th ventricle

10

Prosencephalon=?

Forebrain

Telecephalon and diencephalon

11

Rhombencephaol=?

Hindbrain

Metencephaol + Myelencephalon

12

Which cells are made from neural crest...CNS neurons or PNS neurons?

PNS neurons

The CNS neurons are from neuroectoderm

13

At what week gestation do neural tube defects develop?

4th week

14

Which amniotic fluid marker is INCREASED in neural tube defects?

aFP and AChE

15

"malformation of anterior neural tube leading to no forebrain development"

Anencephaly

16

"malformation of anterior neural tube leading to no forebrain development"

Anencephaly

17

"failure of bony spinal canal to close, but no structural herniation with INTACT dura"

Spina bifida occulta

18

"meninges herniate through bony defect"

Meningocele

19

"meninges and neural tissue herniate through bony defect"

Meningomyelocele

20

"most severe form of spina bifida, spinal cord can be seen externally"

Myeloschsis

21

"failure of the left and right hemispheres to separate"

holoprosencephaly... occurs at weeks 5-6

22

What condition is associated with holoprosenceophaly?

Patae (trisomy 13)

23

"Downward displacement of the cerebellar vermis and medulla through the foramen magnum with resulting hydrocephalus"

Arnold- Chiari malformation II

** associated with lumosacral memingomyelocele

24

"downward displacement of the cerebellar tonsils through the foramen magnum...generally asymptomatic"

Arnold- Chiari malformation I

25

"agenesis of cerebellar vermis with cystic enlargement of 4th ventricle"

Dandy- Walker

26

"agenesis of cerebellar vermis with cystic enlargement of 4th ventricle"

Dandy- Walker

27

"cystic cavity within the spinal cord with damage to anterior spinal commisural fibers"

Syringomyelia

bilateral loss of pain and temperature sensation in upper extremities (from damage to anterior commsural fibers)

28

What nerve provides sensation to the anterior 2/3 of tongue?

V3

29

What nerve provides taste to the anterior 2/3 of the tongue?

VII

30

What nerve provides both taste and sensation to the posterior 1/3 of the tongue?

IX

31

Which nerves provide motor innervation to the tongue?

XII and X

32

What does the face develop from?

1st pharnygeal pouch

33

"maxillary prominence fails to fuse with the medial nasal prominence"

Cleft lip

34

"palatine shelves failt o fuse with each other of the primary palate"

cleft palate

35

"palatine shelves fail o fuse with each other of the primary palate"

cleft palate

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