Final Anatomy Flashcards

1
Q

Brain area: organizaiton of movement

A

basal ganglia

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2
Q

Brain area: endocrine, hunger, thirst, reproduction, temperature control

A

Hypothalamus

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3
Q

Brain area: unconscious motor control

A

Cerebellum

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4
Q

Danger area of scalp

A

Loose connective tissue layer

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5
Q

Layer of scalp richly vascularized

  • Pulls ends of arteries apart –> Profuse bleeding
A

Connective tissue layer

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6
Q

Motor innervation to occipitofrontalis m.

A

Facial n. (CN VII)

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7
Q

Anterior end of falx cerebri attaches to:

A

Crista galli

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8
Q

Which layer of dura continues into spinal cord

A

Meningeal layer

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9
Q

Innervation of posterior cranial fossa

A

C2, C3

Vagus

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10
Q

Innervation of tentorium cerebelli & falx cerebri

A

V1

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11
Q

Lenticular shape on CT

A

Epidural hematoma

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12
Q

Cresent shape on CT

Very old, very young

A

Subdural hematoma

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13
Q

Star-shaped ring around skull base on CT

A

Subarachnoid hemorrhage

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14
Q

Clinical relevance of cavernous sinus

A

Thrombosis site

  • internal carotid a.
  • CN III, IV, V1, V2
  • V1 in close association with internal carotid a.
  • communicates w/ opthalmic & facial vv.
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15
Q

Site of primary auditory cortex

A

superior temporal gyrus

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16
Q

site of primary visual cortex

A

banks of calcarine sulcus

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17
Q

Uncal herniation presses on which CN?

A

CN III

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18
Q

Broca’s area

A

motor speech area

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19
Q

Wernicke’s Area

A

speech comprehension area

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20
Q

reading comprehension

A

angular gyrus

21
Q

CSF appearace:

T1 =

T2 =

A

CSF T1 = dark (blood = white)

CSF T2 = white (blood = dark)

22
Q

Label

A

centrum semiovale

  • white matter

cortical afferents & efferents

23
Q

Part of internal capsule:

  • contains optic radiations
A

Retrolenticular part

24
Q

Part of internal capsule:

  • Contains optic and auditory radiations
A

sublenticular part

25
Q

Commissure important in visual reflexes

A

Posterior commisure

26
Q

Label

A

Opercular cortex

27
Q

Label

A

Frontal/parietal opercular cortex

Insular cortex

Temporal opercular cortex

28
Q

blockage of cerebral aqueduct

A

non-communicating hydrocephalus

29
Q

CSF can enter subarachnoid space

arachnoid vili malfunction

A

communicating hydrocephalus

30
Q

secondary loss of brain tissue due to atrophy

Alzheimer

Pick Disease

Huntington disease

A

Hydrocephalus ex vacuo

31
Q

communicating hydrocephalus without increase in intracradial pressure

A

normal pressure hydrocephalus

32
Q

wet, wobbly, wacky

tissue being pushed aside

A

normal pressure hydrocephalus

33
Q

compared to serum, CSF contains:

A

Lower: potassium, glucose, protein

More: chloride

Almost acelluar

34
Q

supplies 80% blood to anterior circulation

A

Internal carotid aa.

35
Q

supplies 20% blood to posterior circulation

A

Vertebral aa.

36
Q

Compression of CN III between what two arteries

A

Superior cerebellar a.

Posterior cerebral a.

37
Q

Occlusion of what a. causes vertigo & ipsilateral deafness

A

Labyrinthe (internal acoustic) a.

38
Q

Supplies flocculus, middle cerebellar peduncle, and anterior inferior cerebellum

A

Anterior Inferior Cerebellar A. (AICA)

39
Q

Supplies blood to anterior 2/3 of spinal cord

A

Anterior spinal a.

40
Q

Supplies blood to posterior 1/3 of spinal cord

A

Posterior spinal a.

41
Q

Supplies blood to choroid plexus of 4th ventricle, dorsolateral medulla, posterior inferior cerebellum

A

Posterior Inferior Cerebellar A. (PICA)

42
Q

Common site for aneurysm formation

A

origin of posterior communicating a. off internal carotid a.

43
Q

This a. runs on top of the optic tract

A

Anterior choroidal a.

44
Q

Supplies blood to primary visual cortex (calcarine sulcus)

A

Posterior cerebral a. (PCA)

45
Q

Anterior watershed infarct

A

Between ACA and MCA distributions

46
Q

Posterior watershed infarct

A

Along MCA and PCA distributions

47
Q

Cerebral perfusion pressure drops cause

A

watershed infarcts

48
Q

Joins with inferior sagittal sinus to form straight sinus

A

Great Vein of Galen

  • deep venous drainage