Brain I

Question 1

how do the two hemispheres of the brain connect

Answer 1

corpus callosum

Question 2

cerebral hemisphere elevations are called

Answer 2

gyri

Question 3

cerebral hemisphere infoldings

Answer 3

sulci

Question 4

function of gryi and sulci

Answer 4

to increase SA of the brain

Question 5

how is matter in the brain organised as opposed to the spinal cord

Answer 5

brain = inner white matter, outer grey matter
spinal cord = inner grey matter, outer white matter

Question 6

structurally the brain is composed of (3)

Answer 6

1. cerebrum
2. cerebellum
3. brainstem

Question 7

how are the cerebral hemispheres split

Answer 7

via longitudinal cerebrum fissure and flax cerebi

Question 8

each cerebral hemisphere is divided into

Answer 8

4 lobes which are names after the overlying bones; except the insula which is deep to 3 of the lobes

Question 9

where is the cerebellum found

Answer 9

beneath the tentorium cerebelli in the posterior cranial fossa

Question 10

what is the cerebral cortex responsible for

Answer 10

higher brain activities i.e. memory, intelligence, personality

Question 11

how are the 2 lateral hemispheres of the cerebellum connected

Answer 11

by the vermis

Question 12

control in the cerebral hemispheres is

Answer 12

contralateral

Question 13

control in the cerebellum is

Answer 13

ipsilateral

Question 14

3 parts of the brainstem

Answer 14

midbrain
pons
medulla

Question 15

cranial nerves associated with the midbrain

Answer 15

CN III - oculomotor
CN IV - trochlear

Question 16

cranial nerves associated with the pons

Answer 16

CN V - trigeminal

Question 17

cranial nerves associated with the medulla

Answer 17

CN IX - glossopharyngeal
CN X - vagus
CN XII - hypoglossal

Question 18

the diencephalon contains (3)

Answer 18

epithalamus, thalamus and hypothalamus

Question 19

3 main areas of the frontal lobe

Answer 19

1. prefrontal cortex
2. primary motor cortex
3. Broca’s area

Question 20

where is the primary motor cortex found

Answer 20

precentral gyrus

Question 21

function of prefrontal cortex

Answer 21

results in personality

Question 22

function of motor cortex

Answer 22

planning, control and execution of voluntary movement

Question 23

function of Broca’s area

Answer 23

motor speech area

Question 24

2 main areas of parietal lobe

Answer 24

1. primary sensory cortex
2. posterior parietal cortex

Question 25

where is the primary sensory cortex found

Answer 25

postcentral gyrus

Question 26

function of primary sensory cortex

Answer 26

tactile sensation

Question 27

function of posterior parietal cortex

Answer 27

integrates sensory information

Question 28

2 main parts of occipital lobe

Answer 28

1. primary visual cortex 2. secondary visual association area

Question 29

what separates the frontal & parietal lobes from the temporal lobe

Answer 29

lateral sulcus

Question 30

2 main parts of temporal lobe

Answer 30

1. auditory complex 2. Wernicke's area

Question 31

function of Wernicke's area

Answer 31

language comprehension i.e. understanding of written and spoken language

Question 32

function of auditory complex

Answer 32

hearing, speech, words, pitch, tone

Question 33

how is parietal lobe separated from frontal lobe

Answer 33

central sulcus

Question 34

how is parietal lobe separated from occipital lobe

Answer 34

parieto-occipital sulcus

Question 35

what is the sensory homunculus

Answer 35

a representation of how specific areas of the body are mapped to specific areas of the cortex

Question 36

where is the insula found

Answer 36

deep to the lateral sulcus

Question 37

2 parts of the insula and their function

Answer 37

1. anterior insula - sits next to Broca's area and is thought to be involved in language 2. posterior insula - integrating information relating to touch, vision, hearing