B7-090 Gross Brain Lab Intro

Question 1

which lobe has a primarily motor function?

Answer 1

frontal

Question 2

which lobe has a primarily sensory function?

Answer 2

parietal

Question 3

divides the occipital lobe from the parietal

Answer 3

parieto-occipital sulcus

Question 4

what differentiates the layers of the cerebral cortex?

Answer 4

number and type of neurons in each layer

Question 5

layer of the cortex that receives information

Answer 5

4, internal granular

would be larger in sensory areas, lots of info coming in

Question 6

layer of the cortex that sends information to the periphery

Answer 6

5, ganglionic layer

this will be larger in the motor cortex, lots of info going out

Question 7

what layer of the cortex would you expect to be largest in a primary motor center?

Answer 7

5

Question 8

what layer of the cortex would you expect to be largest in a primary sensory center?

Answer 8

4

Question 9

divides the frontal lobe from the parietal

Answer 9

central sulcus

Question 10

the central sulcus lies between the […] and [..] gyrus

Answer 10

precentral (primary motor cotex)
postcentral (primary somatosensory cortex)

Question 11

divides the temporal lobe from the rest of the brain

Answer 11

sylvian fissure

Question 12

broca’s area is located in the […] lobe

Answer 12

frontal

Question 13

production of speech

Answer 13

broca’s

Question 14

understanding of speech

Answer 14

wernicke’s

Question 15

wernicke’s is located in the […] lobe

Answer 15

temporal

Question 16

what layer of the cortex would you expect to be largest in a cortical association center?

Answer 16

3

Question 17

fiber bundle that connects the right and left hemispheres

Answer 17

corpus callosum

Question 18

sits on top of the corpus callosum
important role in learning and memory

Answer 18

cingulate gyrus

Question 19

the gyri on either side of the […] represent primary visual cortex

Answer 19

calcarine sulcus

Question 20

parts of diencephalon [3]

Answer 20

thalamus
hypothalamus
pineal gland (unpaired gland)

Question 21

components of brainstem [3]

Answer 21

midbrain
pons
medulla

Question 22

functions in maintaining balance, smooth movements

Answer 22

cerebellum

Question 23

periaqueductal gray surrounds the […]

Answer 23

cerebral aqueduct

Question 24

posterior circulation arises from

Answer 24

vertebral arteries

Question 25

anterior circulation arises from

Answer 25

internal carotids

Question 26

links the vessels in the posterior circulation to the anterior circulation

Answer 26

circle of Willis

Question 27

blood vessels that supply midbrain [2]

Answer 27

posterior cerebral superior cerebellar

Question 28

what cranial nerve goes through the medulla?

Answer 28

hypoglossal XII

Question 29

what cranial nerve lies in the midline of the midbrain?

Answer 29

occulomotor III

Question 30

blood vessels that supply the cerebral cortex? [3]

Answer 30

posterior cerebral artery middle cerebral artery (off internal carotid) anterior cerebral artery

Question 31

supplies the part of the cortex that controls body surface below the waist

Answer 31

anterior cerebral artery

Question 32

subcortical structures that regulate the magnitude of movement

Answer 32

basal ganglia

Question 33

fiber bundle that separates the thalamus and basal ganglia

Answer 33

internal capsule

Question 34

structures of the forebrain [2]

Answer 34

telencephalon diencephalon

Question 35

structures of the midbrain

Answer 35

mesencephalon

Question 36

structures on the hindbrain [2]

Answer 36

metencephalon myelencephalon

Question 37

[...] deficits are useful in localizing brain lesions

Answer 37

cranial nerve

Question 38

posterior circulation arises from the [....]

Answer 38

vertebral arteries

Question 39

anterior circulation arises from the [...]

Answer 39

internal carotids

Question 40

arteries supplying the midbrain [2]

Answer 40

posterior cerebral superior cerebellar

Question 41

arteries supplying the pons [2]

Answer 41

paramedian and circumfrential branches of the basilar superior and anterior inferior cerebellar

Question 42

arteries supplying the medulla [3]

Answer 42

anterior spinal vertebral posterior inferior cerebellar

Question 43

artery supplying the lateral surface of the motor/somatosensory cortex

Answer 43

middle cerebral

Question 44

deficits above the waist can indicate loss of blood via [...] artery

Answer 44

middle cerebral

Question 45

artery supplying the medial surface of the motor/somatosensory cortex

Answer 45

anterior cerebral

Question 46

deficits below the waist can indicate loss of blood via [...] artery

Answer 46

anterior cerebral

Question 47

the thalamus is located in the [...]encephalon

Answer 47

diencephalon

Question 48

structure that regulates magnitude of movement

Answer 48

basal ganglia

Question 49

fiber bundle that separates the thalamus and basal ganglia

Answer 49

posterior limb of internal capsule

Question 50

originates from the internal carotid and travels between two cerebral hemispheres to supply the medial surface of the cortex

Answer 50

anterior cerebral artery

Question 51

travels through the lateral fissure and spreads out to supply the lateral surface of the cortex

Answer 51

middle cerebral artery

Question 52

supplies the occipital lobe and ventral surface of the cortex

Answer 52

posterior cerebral artery

Question 53

supply the brainstem [2]

Answer 53

basilar artery vertebral arteries

Question 54

supplies lateral somatosensory cortex

Answer 54

middle cerebral artery

Question 55

supplies lateral motor cortex

Answer 55

middle cerebral artery

Question 56

supplies medial somatosensory cortex

Answer 56

anterior cerebral artery

Question 57

supplies medial motor cortex

Answer 57

anterior cerebral artery

Question 58

the anterior and middle cerebral arteries are part of [...] circulation

Answer 58

anterior

Question 59

anterior circulation arises from

Answer 59

internal carotids

Question 60

posterior circulation arises from

Answer 60

vertebral arteries

Question 61

precentral gyrus

Answer 61

primary motor cortex

Question 62

postcentral gyrus

Answer 62

primary somatosensory gyrus

Question 63

interprets information in the visual environment

Answer 63

primary visual cortex

Question 64

the posterior limb of the internal capsule separates the [...] from the [...] medially

Answer 64

basal ganglia thalamus

Question 65

the anterior limb of the internal capsule separates the [...] from the [...]

Answer 65

caudate nucleus putamen and globus pallidus

Question 66

function of the caudate nucleus

Answer 66

motor function

Question 67

function of the hippocampus

Answer 67

memory

Question 68

function of the putamen

Answer 68

motor

Question 69

degenerates in parkinson's

Answer 69

substantia nigra

Question 70

the medial surface of the occipital lobe is supplied by

Answer 70

posterior cerebral artery

Question 71

supplies the medial surface of the cortex

Answer 71

the anterior cerebral artery

Question 72

supplies the lateral surface of the frontal and parietal lobe

Answer 72

middle cerebral artery