Brain areas

Question 1

meninges?

Answer 1

3 layers surrounding brain and spinal cord

-protection

Question 2

cerebral ventricles?

Answer 2

cerebrospinal fluid filled pickets in brain and spinal cord

-csf supplies nutrients and acts as a shock absorber

Question 3

describe the cerebral cortex

Answer 3

• outer layer of cerebrum
• higher order processes
• 2 hemispheres and 4 lobes

Question 4

describe frontal lobe

Answer 4

• prefrontal cortex:
• > emotional control, problem solving, planning (phineas)
• > executive function
• > broca’s area: speech productiton
• motor cortex: movement; different places for diff body parts and fineness/complexity

Question 5

describe occipital lobe

Answer 5

has visual cortex: processing visual stuff

Question 6

describe parietal lobe

Answer 6

somatosensory cortex
assication area
-spatial attention (neglect)
-mental maths

Question 7

describe temporal lobe

Answer 7

auditory cortex: hearing
association area
-wernicke’s: speech comprehension
-storing autobiographical memories

Question 8

describe how different cortical hierarchies work together

Answer 8

processed by thalamus
goes to sensory cortex
sent to association cortex where processed

Question 9

role of basal ganglia?

Answer 9

sensory info about movement sent there

basal ganglia provides a blueprint of proposed movement to motor cortex

Question 10

damage to basal ganglia?

Answer 10

tourettes (tics)

parkinsons (tremors, lack of control of movement)

Question 11

limbic system contains

Answer 11

amygdala
hippocampus
hypothalamus
thalamus

Question 12

role of thalamus and hypothalamus

Answer 12

thalamus is the first point where sensory info is processed

hypothalamus controls homeostasis of many things - temperature, salt balance, …

Question 13

role of hippocampus

Answer 13

consolidates LTm’s
spatial memories
damage: anterograde amnesia

Question 14

role of amygdala

Answer 14

sympathetic acitvation
fear responses
-damages: can’t learn fear responses

Question 15

role of cerebellum?

Answer 15

balance

Question 16

brainstem contains

Answer 16

midbrain and hindbrain (pons and medulla)

Question 17

role of pons

Answer 17

dreams

Question 18

role of medulla

Answer 18

basic life function

• damage = brain death
• note: persistent vegetative state is when cerebrum is damaged but medulla is still alive.

Question 19

role of spinal cord

Answer 19

relays info between CNS and PNS

reflex response - interneurons in spinal cord

Question 20

role of reticular activating system?

Answer 20

arousal