Psych Unit 3

Question 1

Dendrites

Answer 1

Receive signals from axons of other neurons

Question 2

Cell body

Answer 2

central part that houses nucleus

Question 3

Cell membrane

Answer 3

protects the cell body

Question 4

Axon

Answer 4

cable like tail that conveys signals to other neurons

Question 5

Terminal buttons

Answer 5

When activated, release chemicals into the space around the neurons

Question 6

Synapse

Answer 6

pathway where the sending and receiving takes place

Question 7

Synaptic cleft

Answer 7

Free space between sending and receiving neuron

Question 8

Drugs and other neurotoxins take effect in…

Answer 8

The synaptic cleft

Question 9

Excitatory input

Answer 9

neuron more likely to have a neural impulse

Question 10

Inhibitory input

Answer 10

neuron less likely to have a neural impulse

Question 11

Glial cells

Answer 11

help neurons create synapses and form connections

Question 12

Dopamine

Answer 12

treats Parkinson’s, depression, agression

Question 13

Endorphins

Answer 13

treats pain, anxiety, substance abuse

Question 14

Serotonin

Answer 14

modulates sleep, treats obsessive-compulsive, depression also

Question 15

Peripheral nervous system

Answer 15

send and receive info to and from your organs

Question 16

corpus collosum

Answer 16

large bundle of axons connecting the two brain hemis

Question 17

cerebral cortex (gray matter)

Answer 17

outer layer of the brain (2mm)

Question 18

sulci

Answer 18

the creases or ‘lines’ on the brain

Question 19

gyri

Answer 19

the different little chunks of the brain

Question 20

occipital lobes

Answer 20

back of the head, deal w/ vision

Question 21

temporal lobes

Answer 21

in front of the ears, process sound, story memories, comprehend language

Question 22

parietal lobes

Answer 22

back of the head, process distance, math, and touch

Question 23

frontal lobes

Answer 23

reasoning, emotion, motor control

Question 24

thalamus

Answer 24

control center, routes signals to correct part of brain

Question 25

hypothalamus

Answer 25

regulates heart rate, appetite, emotions, hormones

Question 26

hippocampus

Answer 26

allows you to store new info

Question 27

amygdala

Answer 27

regulates/interprets emotions & facial expressions

Question 28

absolute threshold

Answer 28

smallest amount needed to detect stimulus

Question 29

cocktail party phenom

Answer 29

can hear you name through any amount of noise