Psych ch 3

Question 1

Neurons

Answer 1

cells that receive and transport electrical signals

Question 2

CNS composes of what

Answer 2

brain and spinal chord

Question 3

cerebral cortex

Answer 3

grey matter, covers hemispheres

Question 4

three areas receive info

Answer 4

auditory, visual, somatosensory

Question 5

cerebellum

Answer 5

contols non-conscious processes

Question 6

Brain stem includes

Answer 6

medulla
pons
midbrain

Question 7

limbic system

Answer 7

regulates behaviour, emotion and memory

Question 8

basal ganglia

Answer 8

involved in volunatry motor response

Question 9

endocrine glands

Answer 9

release hormones

Question 10

somatic nervous system has two types of cells

Answer 10

Efferent and Afferent

Question 11

efferent

Answer 11

carry from cns

Question 12

afferent

Answer 12

carry to cns

Question 13

sympathetic

Answer 13

activates functions

Question 14

para sympathetic

Answer 14

relaxes

Question 15

cell body

Answer 15

metabolic centre of neuron

Question 16

dendrites

Answer 16

gather info

Question 17

axon

Answer 17

carries messages

Question 18

terminal buttons

Answer 18

bottom of dendrites

Question 19

Myelin Sheath

Answer 19

fatty insulation around axons

Question 20

nodes of ranvier

Answer 20

gaps between myelin sheath

Question 21

threshold

Answer 21

-50mv

Question 22

depolarized from when

Answer 22

-70 to -50

Question 23

all or nothing

Answer 23

once the threshold is reached, the neuron fires

Question 24

agonist

Answer 24

drugs that affect neurotransmitters