Unit 2 Review

Question 1

at resting potential, when sodium is on the outside, potassium on the inside of a neuron

Answer 1

polarization

Question 2

normal, happy resting state. strives to obtain regularity

Answer 2

homeostasis

Question 3

when the nucleus decides to fire, it fires down the axon completely or not at all

Answer 3

all or nothing prinicple

Question 4

when a message begins, opposites are no longer away from each other, causing potassium ions to rush out

Answer 4

depolarization

Question 5

period of the time after firing that the neuron is focused on resetting, and therefore is unable to fire again

Answer 5

refractory period

Question 6

block reuptake

Answer 6

reuptake inhibitors

Question 7

muscle contractions, memory and learning (Alzheimer’s)

Answer 7

acetylcholine

Question 8

movement thought process, rewarding sensation (schizophrenia, drug addiction)

Answer 8

dopamine

Question 9

emotional states, sleep (depression)

Answer 9

serotonin

Question 10

physical arousal, learning, and memory (depression, stress)

Answer 10

norepinephrine

Question 11

inhibition of brain activity (anxiety)

Answer 11

GABA

Question 12

pain perception, positive emotions, runner’s high (opiate addiction)

Answer 12

endorphins

Question 13

make neuron fire
mimic neurotransmitters

Answer 13

agonist

Question 14

stop neural fire
block neurotransmitters

Answer 14

antagonist

Question 15

major excitatory neurotransmitter, involved in memory (migraines, seizures)

Answer 15

glutamate