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Anatomy Exam 1 > Neuro > Flashcards

Neuro Flashcards

1
Q

Major site of production and resorption of CSF?

A

production: choroid plexus
resorption: Arachnoid villi

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2
Q

_______ is found beneath the uncus in temporal lobe

A

Amygdala

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3
Q

_______ separates Lenticular nucleus and thalamus

A

internal capsule

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4
Q

_______ changes axis of cord/brainstem relative to cerebrum

A

cephalic flexure

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5
Q

Gyrus rectus consists _____

A

only the ORBITAL GYRUS

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6
Q

what does olfactory sulcus contain?

A

both olfactory bulb and tract

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7
Q

isthmus of the cingulate gyrus is the transition btwn ____ and ____

A

lingual gyrus and parahippocampal gyrus

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8
Q

______ is deep to uncus

A

amygdala

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9
Q

superior border of parahippocampal gyrus is _____

A

hippocampal sulcus (seen on cut section)

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10
Q

Insula overlies site where _____ and ______ fuse during development

A

telecephalon and diencephalon

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11
Q

Cerebrum = ________ + ______

A

cerebral hemispheres + Diencephalon

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12
Q

What are the divisions of Diencephalon?

A

Thalamus, hypothalamus, epithalamus, subthalamus

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13
Q

what’s the name of point of thalamic fusion across the midline?

A

intrathalamic adhesion

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14
Q

_____ is the roof of the 3rd ventricle

A

stria medullaris

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15
Q

hypothalamus and thalamus are separated by _____

A

hypothalamic sulcus

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16
Q

______ connects hypothalamus with pituitary gland

A

infundibular stalk

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17
Q

arachnoid and pia mater are collectively referred to as _______

A

leptomeninges

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18
Q

what event makes epidural hematoma? subdural hematoma?

A

epidural hematoma: tear of meningeal arteries that run btwn skull and dura

subdural hematoma: tearing of bridging veins

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19
Q

dural folds on its own is called ______

A

dural reflection or dural septum

Ex: falx cerebri and tentorium cerebelli

20
Q

Space in tentorium cerebelli where brainstem passes thru is called the ______________

A

tentorial notch or tentorial incisure

21
Q

what 5 sinuses/veins drain into confluence of sinuses?

A
  1. superior sagittal sinus
  2. straight sinus
  3. occipital sinus
  4. transverse sinus X2 (R&L)
22
Q

Two pairs of vessels supply much of brain & cord

A

ICA and vertebral artery

23
Q

where are blood-brain barrier located?

A

around 3rd and 4th ventricles

24
Q

where do superficial venous system drain into? deep?

A

superficial drains into superior sagittal sinus

deep drains into straight sinus

25
Q

Autoregulation of cerebral blood flow

A

vessels constrict when↑ pressure; dilate when pressure ↓

26
Q

Myelin are membrane of _____ cell

A

Glial (memorize)

27
Q

Myelin are produced by ____ cells in CNS and _____ cells in PNS

A

CNS: oligodendroglia cells
PNS: Schwann cells

28
Q

At nodes of Ranvier, there are high concentration of ____ channels

A

sodium

29
Q

what kind of receptors does “carotid body” have?

A

chemoreceptors

carotid body = common carotid and ICA and ECA

30
Q

Sensory receptors adapt; they become less sensitive to stimulus if the stimulus is maintained. An exception to that rule is _______

A

nociceptors (memorize)

31
Q

what are the 2 spinal enlargements and where are their location?

A

cervical enlargement: C5-T1

Lumbar enlargement: L2-S3

32
Q

what’s the name of the “caudal end of spinal cord?”

A

conus medullaris

33
Q

which level can we find dorsal intermediate sulcus of the spinal cord?

A

only above T6

34
Q

Out of the 5 Spinal cord laminae, which ones do we have to know? and what are they for?

A

Lamina I - relay sensory info
Lamina II - substantia gelatinosa (important in pain)
Lamina V - relay sensory info

35
Q

where is the spinal accessory nucleus located?

A

caudal medulla to C5

36
Q

when does the nerve exit intervertebral forament at the level of origin of an embryo?

A

3rd month

37
Q

where is lumbar puncture performed at?

A

L4-5

38
Q

at which levels can you find cauda equina nerve fibers?

A

L1/2 to end of dura at S2

39
Q

where are cells bodies of afferent neuron and efferent neurons located?

A

afferent: dorsal root ganglion
efferent: CNS

40
Q

________ can inhibit motor neurons (in case of stretch reflex)

A

muscle tension (golgi tendon organ)

41
Q

what’s the blood supply to the spinal cord?

A
  1. vertebral artery (via radicular artery)

2. left posterior intercostal a (via great radicular a)

42
Q

______ + _______ = posterior column nuclei

A

nucleus gracilis and nucleus cuneatus

43
Q

Clarke’s nucleus is equivalent to ______

A

external (or lateral) cuneate nucleus

44
Q

what makes the bump we call the olive on the medulla?

A

inferior olivary nucleus

45
Q

what makes the white matter look white?

A

myelin

so, gray matter in CNS is unmyelinated

46
Q

Definition of motor unit

A

1 motor neuron + all myofibers it innervates

Anatomy Exam 1 (1 decks)

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