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Flashcards in neuro III Deck (45)
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1
Q

Basal plate of brain becomes

A

umn center and LMN nuclei

2
Q

brain stem: neural canal expands ____ (direction)

A

dorsally

3
Q

alar plate structures shift

A

laterally and ventrally

4
Q

basal plate structure

A

pushed or squeezed medially

5
Q

white matter of marginzal zone ends up

A

intermitent with gray matter

6
Q

neural canal opens into

A

4th ventricle

7
Q

alar plate structures shift _____

A

laterally

8
Q

basal plate (motor) structure pushed

A

medially

9
Q

cerebrum and cerebellum initial organization is

A

completely redone

10
Q

gray matter moves

A

externally

11
Q

gray matter guided by

A

glial cells called radial glia

12
Q

white matter ends up

A

internal

13
Q

ependymal cells of ventricular zone line

A

line ventricular spaces

14
Q

glandular part of pituitary gland

A

adenohypothphysis

15
Q

neural part of pituitary gland

A

neurohypophysis

16
Q

goal

A

neuarl, CNS input to endocrine regulation

17
Q

what are the sources of adenohypophysis

A

surface ectoderm in region of developing mouth

18
Q

what is the source of neurohypophysis

A

neuroectoderm

19
Q

stomodeum

A

endoderm and ectoderm adjacent at cranial end

20
Q

rathkes pouch of adenohypophysis

A

a dorsal diverticulum of hat will be the roof of the mouth

21
Q

eventually loses connection to stomodeum and fuses with

A

neurohypophysis

22
Q

ventral diverticulum of stomodeum (floor of developing brain)

A

neurohypophysis

23
Q

neurohypophysis retains its connection to diencephalon via a stalk called

A

the infundibulum

24
Q

cells of the _____ proliferate around the stalk

A

adenohypophysis

25
Q

what are the meninges

A

membrane layers that surround the parts of the cns

26
Q

dura mater

A

tough outer layer

27
Q

arachnoid membrane

A

delicate, spider web-like, middle layer

28
Q

pia mater

A

directly against CNS tissue

29
Q

epidural space

A

outside dura mater

30
Q

subdural space

A

between dura mater and arachnoid

31
Q

subarachnoid space

A

between arachnoid and pia mater

32
Q

epidural space in the spinal cord and vertebral canal

A

fat filled

33
Q

epidural space of the skull

A

absent

34
Q

subdural space

A

potential space

35
Q

subarachnoid space

A

CSF

36
Q

loose mesodermal tissue surrounds

A

neural tube after primary and secondary neurulation; that condenses to form dura mater

37
Q

dura mater is

A

primarily dense collagenous connective tissue

38
Q

in cranium, the mesodermal tissue consists of

A

an outer layer fused to the periosteum of bones surroundin ght ebrain and an inner layer

39
Q

what is located between the two layers

A

venous sinuses

40
Q

inner layer composed of 3 folds

A

falx cerebri
tentorium cerebelli
diaphragm sellae

41
Q

falx cerebri

A

between cerebral hemispheres

42
Q

tentorium cerebelli

A

between cerebrum and cerebellum

43
Q

diaphragm sellae

A

between hypothalamus and pituitary gland

44
Q

filum terminale

A

caudal most part of spinal cord tapered to narrow strand of ependymal and glial cells

45
Q

caudal ligament

A

fuses with filum terminale and periosteum of one of the caudal vertebrae