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Neuroanatomy > Exam #3: Lab V > Flashcards

Exam #3: Lab V Flashcards

1
Q

What artery supplies the lateral surface of the cortex?

A

MCA

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2
Q

What is the function of the association tracts?

A

Sending information from one part of the hemisphere to another part of the IPSILATERAL hemisphere

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3
Q

List the three association tracts.

A

1) Superior longitudinal fasiculus
2) Uncinate fasciculus
3) Occipitofrontal fasciculus

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4
Q

What structure lies deep to the association tracts?

A

Internal capsule

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5
Q

What direction are the fibers of the internal capsule directed?

A

Vertically

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6
Q

What is the corona radiata?

A

Extension of the internal capsule that spreads toward the cortex

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7
Q

What are the optic radiations?

A

Tracts that carry information from the thalamus to the visual cortex

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8
Q

What two basal nuclei is the anterior limb of the internal capsule associated with?

A

1) Caudate (Head of the Caudate)

2) Putamen

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9
Q

What nuclear group sits lateral to the third ventricle?

A

Thalamus

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10
Q

What is the wall between the lateral ventricles?

A

Septum pellucidum

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11
Q

What are commisural tracts?

A

White matter tracts that carry information from hemisphere to CONTRALATERAL hemisptere

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12
Q

What does the anterior white commissure connect?

A

Frontal and temporal lobes

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13
Q

Where is the external capsule?

A

OUTSIDE of the basal nuclei (vs. the internal capsule that is inside the basal nuclei)

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14
Q

What is the fornix?

A

Tract that runs from the mammillary bodies to the limbic lobe

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15
Q

Where can you find the column of the fornix?

A

Inferior to the septum pellucidum

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16
Q

What is the region of the cortex that surround the corpus callosum?

A

Cingulate gyrus

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17
Q

When the cingulate gyrus narrow anteriorly, what is this structure called?

A

Isthmus of the cingulate gyurs

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18
Q

What does the isthmus of the cingulate gyrus connect to?

A

Parahippocampal gyrus

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19
Q

What is the most medial aspect of the parahippocampal gyrus called?

A

Uncus

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20
Q

What structure is deep to the uncus?

A

Amygdala

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21
Q

What structure are the mammillary bodies part of?

A

Hypothalamus

22
Q

What white matter attaches the hypothalamus to the limbic system?

A

Fornix

23
Q

In an anterior coronal section, what basal nuclei will border the lateral ventricle?

A

Caudate (Head of the Caudate)

24
Q

How does the anterior limb of the internal capsule appear on coronal section?

A

“Striated”

*Bordered by the Head of the Caudate & the Putamen

25
Q

What is the nucleus accumbens?

A

Fusion of the head of the caudate with the putamen

*Important to motivation and reward (addiction)

26
Q

What white matter tract is lateral to the thalamus?

A

Posterior limb of the Internal Capsule

27
Q

What are disorders of the amygdala association with?

A
  • Olfactory & gustatory hallucinations

- De ja vu

28
Q

What structure is posterior to the amygdala?

A

Hippocampus

29
Q

What is the hallmark of the midbrain?

A

Red Nucleus

30
Q

What structure sits superior and lateral to the Substantia Nigra?

A

Subthalamic Nuclei

31
Q

What structure sits between the superior colliculi?

A

Epithalamus

32
Q

What part of the corpus callosum is anterior? What part of the corpus callosum is posterior?

A 
Anterior= genu 
Posterior= splenium
33
Q

What is the extreme capsule?

A

White matter association tract that is lateral to the claustrum

34
Q

What is the claustrum?

A

Grey matter strip lateral to the external capusle

35
Q

Where is the tail of the caudate?

A

Posterior aspect of the lateral ventricle

36
Q

What structure sits posterior to the optic chiasm?

A

Stalk of the pituitary/ infundibulum

37
Q

What is the difference between a T1 & T2 weighted image on MRI?

A

T1= enhances fluid

38
Q

What space does CSF flow through in the brain and spinal cord?

A

Subarachnoid space

39
Q

What makes up the basis pontis?

A

Transverse white matter fibers

40
Q

What artery sits in the midline of the pons?

A

Basilar artery

41
Q

What is the hallmark for the dentate nucleus on cross-section?

A

It looks like a row of teeth

42
Q

What fissure separates the cerebellum from the occipital lobe?

A

Transverse fissure

**Tentori cerebellum is located here

43
Q

What does the primary fissure separate?

A

Anterior lobe & posterior lobe of the cerebellum

44
Q

What does the posterolateral fissure separate?

A

Posterior lobe from the nodulus

45
Q

What are the grooves in the cerebellum on mid-sagittal section called?

A

“Folia” b/c they look like leaves

46
Q

What is the medulla of the cerebellum?

A

White matter of the cerebellum

47
Q

What is the flocculus inferior and lateral to?

A

MCP

48
Q

What is the flocculus connected to?

A

Nodulus (which is more midline)

49
Q

What is the flocularnodular lobe responsible for functionally?

A

Balance & posture

50
Q

What cranial nerve is associated with the flocularnodular lobe?

A

CN VIII

Neuroanatomy (36 decks)

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