Final Anatomy

Question 1

Brain area: organizaiton of movement

Answer 1

basal ganglia

Question 2

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

Answer 2

Hypothalamus

Question 3

Brain area: unconscious motor control

Answer 3

Cerebellum

Question 4

Danger area of scalp

Answer 4

Loose connective tissue layer

Question 5

Layer of scalp richly vascularized

• Pulls ends of arteries apart –> Profuse bleeding

Answer 5

Connective tissue layer

Question 6

Motor innervation to occipitofrontalis m.

Answer 6

Facial n. (CN VII)

Question 7

Anterior end of falx cerebri attaches to:

Answer 7

Crista galli

Question 8

Which layer of dura continues into spinal cord

Answer 8

Meningeal layer

Question 9

Innervation of posterior cranial fossa

Answer 9

C2, C3

Vagus

Question 10

Innervation of tentorium cerebelli & falx cerebri

Answer 10

V1

Question 11

Lenticular shape on CT

Answer 11

Epidural hematoma

Question 12

Cresent shape on CT

Very old, very young

Answer 12

Subdural hematoma

Question 13

Star-shaped ring around skull base on CT

Answer 13

Subarachnoid hemorrhage

Question 14

Clinical relevance of cavernous sinus

Answer 14

Thrombosis site

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

Question 15

Site of primary auditory cortex

Answer 15

superior temporal gyrus

Question 16

site of primary visual cortex

Answer 16

banks of calcarine sulcus

Question 17

Uncal herniation presses on which CN?

Answer 17

CN III

Question 18

Broca’s area

Answer 18

motor speech area

Question 19

Wernicke’s Area

Answer 19

speech comprehension area

Question 20

reading comprehension

Answer 20

angular gyrus

Question 21

CSF appearace:

T1 =

T2 =

Answer 21

CSF T1 = dark (blood = white)

CSF T2 = white (blood = dark)

Question 22

Label

Answer 22

centrum semiovale

• white matter

cortical afferents & efferents

Question 23

Part of internal capsule:

• contains optic radiations

Answer 23

Retrolenticular part

Question 24

Part of internal capsule:

• Contains optic and auditory radiations

Answer 24

sublenticular part

Question 25

Commissure important in visual reflexes

Answer 25

Posterior commisure

Question 26

Label

Answer 26

Opercular cortex

Question 27

Label

Answer 27

Frontal/parietal opercular cortex Insular cortex Temporal opercular cortex

Question 28

blockage of cerebral aqueduct

Answer 28

non-communicating hydrocephalus

Question 29

CSF can enter subarachnoid space arachnoid vili malfunction

Answer 29

communicating hydrocephalus

Question 30

secondary loss of brain tissue due to atrophy Alzheimer Pick Disease Huntington disease

Answer 30

Hydrocephalus ex vacuo

Question 31

communicating hydrocephalus without increase in intracradial pressure

Answer 31

normal pressure hydrocephalus

Question 32

wet, wobbly, wacky tissue being pushed aside

Answer 32

normal pressure hydrocephalus

Question 33

compared to serum, CSF contains:

Answer 33

Lower: potassium, glucose, protein More: chloride Almost acelluar

Question 34

supplies 80% blood to anterior circulation

Answer 34

Internal carotid aa.

Question 35

supplies 20% blood to posterior circulation

Answer 35

Vertebral aa.

Question 36

Compression of CN III between what two arteries

Answer 36

Superior cerebellar a. Posterior cerebral a.

Question 37

Occlusion of what a. causes vertigo & ipsilateral deafness

Answer 37

Labyrinthe (internal acoustic) a.

Question 38

Supplies flocculus, middle cerebellar peduncle, and anterior inferior cerebellum

Answer 38

Anterior Inferior Cerebellar A. (AICA)

Question 39

Supplies blood to anterior 2/3 of spinal cord

Answer 39

Anterior spinal a.

Question 40

Supplies blood to posterior 1/3 of spinal cord

Answer 40

Posterior spinal a.

Question 41

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

Answer 41

Posterior Inferior Cerebellar A. (PICA)

Question 42

Common site for aneurysm formation

Answer 42

origin of posterior communicating a. off internal carotid a.

Question 43

This a. runs on top of the optic tract

Answer 43

Anterior choroidal a.

Question 44

Supplies blood to primary visual cortex (calcarine sulcus)

Answer 44

Posterior cerebral a. (PCA)

Question 45

Anterior watershed infarct

Answer 45

Between ACA and MCA distributions

Question 46

Posterior watershed infarct

Answer 46

Along MCA and PCA distributions

Question 47

Cerebral perfusion pressure drops cause

Answer 47

watershed infarcts

Question 48

Joins with inferior sagittal sinus to form straight sinus

Answer 48

Great Vein of Galen - deep venous drainage