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Neuro Exam 2 > Practice Qs > Flashcards

Practice Qs Flashcards

1
Q

Labryinthe branches from

A

AICA

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2
Q

What makes up the primary visual CTX?

The cingulate and parahippocampal gyri are located on the medial
aspect of the hemisphere and are parts of the limbic lobe. (p. 14, 15, 28-30)

A

The lingual gyrus is the lower bank of the calcarine sulcus; the upper (cuneus) and lower
banks of this sulcus are the location of the primary visual cortex.

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3
Q

Where is the precuneus located

A

medial aspect of parietal lobes

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4
Q

where is the angular gyrus located

A

inferior parietal lobule

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5
Q

The cingulate and parahippocampal gyri are located on the ____
aspect of the hemisphere and are parts of the ____ lobe. (

A

medial

limbic

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6
Q

on MRI, what part of the brain on the scan tells us we are midline

A

cerebral aqueduct

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7
Q

the ____ in about the lateral one-third of the precentral

gyrus above the lateral sulcus;

A

face

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8
Q

the hand and upper extremity in about its ____

A

middle third

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9
Q

and the trunk

and hip are located about its _____

A

medial third

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10
Q

_______________ are located in the anterior

paracentral gyrus

A

LE and foot

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11
Q

A lesion in area 44 (the pars opercularis) that spreads will affect …

A

the lower portions of

the precentral gyrus in which the face is represented.

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12
Q

what a serves the pre and post central gyrus?

A

M4

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13
Q

The uncus is a small elevation at the _____ and ____ aspect of the parahippocampal
gyrus a

A

rostal and medial

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14
Q

The P2 segment of the posterior cerebral artery gives rise to

A

thalamogeniculate

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15
Q

A 51-year-old man presents with visual field deficits in both eyes and a right-sided weakness of the upper and lower extremities. MRI shows a lesion in the optic tract that has spread into a structure located immediately adjacent to this tract. Based on its anatomical relationship, which of the following structures is most likely involved in a lesion spreading from the optic tract?

(A) Left basilar pons
(B) Left crus cerebri
(C) Left pyramid
(D) Right crus cerebri
(E) Right optic nerve
A

Optic tract lays on crus cerebri.

B. If damage to R optic tract -> L crus cerebri problem

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16
Q

Lesions of the left basilar pons and pyramid would result in a ….

A

R sided weakness

17
Q

Sudden tonsillar herniation may compress the ____ and damage

respiratory and cardiac centers resulting in sudden death.

A

medulla

18
Q

anterior border zone ischemia can cause loss

A

loss of motor and sensor from the LE Because the lower limb portion of the homunculus is on the medial portion of the frontal and parietal lobes,

19
Q

damage to the posterior border zone

A

visual and language issues

20
Q

ACA

A

A1: (Precommunicating segment) ICA to anterior communicating a.
A2: (Infracallosal segment) anterior communicating a. to where rostrum and genu of corpus callosum meet
A3: (Precallosal segment) arches around the genu of corpus callosum, ends when vessels turn caudal. Has 2 branches: pericallos and callos marg
A4: (Supracallosal) superior to corpus callosum
A5: (Postcallosal) caudal to corpus callosum

21
Q

MCA

A

M1: (Sphenoidal or horizontal segment): ICA to the bifurcation at insula
M2: (Insular segment): bifurcation at insula to circular sulcus of insula (right angle turn)
M3: (Opercular segment): Circular sulcus of insula to external surface of Lateral Fissure
M4: (Cortical segment): On the cortex

22
Q

PCA

A

P1: Basilar bifurcation to posterior communicating a.
P2: Posterior communicating a. to around the midbrain
P3: (Quadrigeminal segment) segment within the quadrigeminal cistern
P4: (Cortical segment)

23
Q

Medulla BS

A

Anterior Spinal Artery supplies: pyramids, medial lemnisus , hypoglossal nucleas

Posterior Spinal Artery supplies
Fasciculus cuneatus
Fasciculus gracilis
Cuneate and gracile nuclei

PICA supplies: Lateral medulla

Anterior inferior cerebellar artery supplies
Dorsal and ventral cochlear nuclei

24
Q

Anteromedial branches of the basilar bifurcation and P1.

supplies what?

A

medial midbrain -> can cause webers syndrome

25
Q

Quadrigeminal and superior cerebellar arteries

supply what

A

superior and inferior colliculo

26
Q

Anterior choroidal artery supplies

A

Optic tract
Hippocampal formation
Internal capsule

27
Q

An aneurysm in the following arteries can cause compression of the oculomotor nerve (CN III)

A

Posterior cerebral A
Superior cerebellar A
Posterior communicating A

28
Q

An aneurysm in the following arteries can cause compression of the abducens nerve (CN VI)

A

AICA

labyrtinthe

29
Q

An aberration of the following vessel can compress the trigeminal nerve (CN V) causing trigeminal neuralgia.

A

Superior cerebellar A

30
Q

Aberrant branches of the following artery can compress the facial nerve (CN VII).

A

Anterior inferior cerebellar A.

31
Q

What do the posteiror spinal arteries supply

A

legs part of corticospinal tract

fasc gracilis and cuneatus

32
Q

Anterior spinal A supply what?

A

everything else: dorsal and ventral horns

Gives off sulcal arteries
These “stair step” upwards – switching sides every time – and so if one of them is occluded only one side of the medulla will be affecte

33
Q

_______ are white matter “highway routes for connection to the cerebral cortex.”

A

Cerebral peduncles

34
Q

The __________- forms part of the floor of the 4th ventricle.

A

pontine tegmentum

35
Q

Cauda equina = ________

A

group of axons projecting from the spinal cord.

36
Q

Afferent sensory fibers (rootlets) enter the SC through the ______ sulcus, which is present along the entire length of the SC. It then travels through white matter called Lissauer’s tract to get to the_____

A 
posterolateral sulcus
 substantia gelatinosa (grey matter that caps the posterior horn)
37
Q

Lamina of gray matter:

A

Lamina I covers the substantia gelatinosa
Lamina II is the substantia gelatinosa
Lamina III through VI make up the posterior horn
Lamina VII is all of the intermediate horn (including Clarke’s nucleus) and part of the anterior horn
Lamina VIII makes up the interneuron zones of the anterior horn
Lamina IX makes up the motor neurons of the anterior horn
Lamina X is the zone of gray matter surrounding the central canal

38
Q

filum terminale internum

A

conus medullaris -> S2

Neuro Exam 2 (12 decks)

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