Psych Chapter 2

Question 1

Dendrites

Answer 1

receive info from other neurons

Question 2

Axon

Answer 2

sends info to other neurons

Question 3

terminal buttons

Answer 3

release neurotransmitters

Question 4

myelin sheath

Answer 4

covers and insulates the axon

Question 5

nodes of rancier

Answer 5

gaps in sheath

Question 6

synapse

Answer 6

small gap between terminal buttons of one neuron and dendrites of another neuron

Question 7

neurons communicate…

Answer 7

electrochemically

Question 8

electrical signals occur..

Answer 8

within the neuron (action potential)

Question 9

chemical signals occur… between neurons

Answer 9

between neurons (neurotransmitter)

Question 10

ion

Answer 10

molecule that carries an electric charge

Question 11

Process of Neural communication

Answer 11

neuron is stimulated by the environment
cellmembrane becomes permeable
leads to a rapid increase in charge
when it reaches a threshold, releases action potential down axon
AC reaches the terminal button
TB releases a neurotransmitter into synapse
NT binds to receptor cites on post synaptic neurons

Question 12

Action Potential

Answer 12

brief electrical charge that travels down the axon

Question 13

refractory period

Answer 13

brief period after action potential when the neuron cannot fire

Question 14

Neuro transmitter

Answer 14

chemical that transmits electrical acticity

Question 15

Acetycholine

Answer 15

muscle action, learning, memory

Question 16

seratonin

Answer 16

sleep and mood regulation, appetite, temperature, pain supression

Question 17

dopanine

Answer 17

voluntary movement, though, emotion, reward, pleasure

Question 18

endorphines

Answer 18

reduce pain increase pleasure

natural opiates

Question 19

central nervous system

Answer 19

CNS, brain and spinal chord

Question 20

periphrerial nervous system

Answer 20

PNS sensory and motor neurons tha

Question 21

nerves

Answer 21

bundles of axons

Question 22

sensory neurons

Answer 22

messages from body to CNS

Question 23

motor neurons

Answer 23

messages from cns to body

Question 24

interneurons

Answer 24

communicate between sensory and motor neurons

Question 25

somatic nervous system

Answer 25

voluntary muscle control

Question 26

autonomic nervous system

Answer 26

control involuntary process

Question 27

sympathetic nervous system

Answer 27

fight-or-flight

Question 28

parasympathetic nervous system

Answer 28

calms body, conserves energy

Question 29

spinal chord

Answer 29

connects peripheral nervous system to the brain

Question 30

Brain Stem

Answer 30

involuntary movement, medulla, pons

Question 31

medulla

Answer 31

heartbeat, breathing

Question 32

pons

Answer 32

movement

Question 33

thalamus

Answer 33

senses, relay station

Question 34

cerebellum

Answer 34

coordination, balance, movement, learning, memory

Question 35

limbic system

Answer 35

hypothalamus, amygdala

Question 36

hypothalamus

Answer 36

basic survival drives, hunger, thirst, sex drives

Question 37

amygdala

Answer 37

controls negative emotion, fear agressions, fight/flight responses

Question 38

hipocampus

Answer 38

learning/ memory

Question 39

cortex

Answer 39

higher cognitive functions, 2 hemispheres connectd by corpus callosum

Question 40

frontal lobe

Answer 40

motor cortex, movement, reasoning, planning

Question 41

parietal lobe

Answer 41

pain, pressure, senses, awareness of the body

Question 42

occipital

Answer 42

vison

Question 43

temporal

Answer 43

hearing

Question 44

laterializtion

Answer 44

2 sides serving different functions

Question 45

contralateral orginization

Answer 45

each side controls the opposite side

Question 46

plasticity

Answer 46

brain can change

Question 47

damage to frontal lobe

Answer 47

lose moral compass

Question 48

broca's area

Answer 48

production problem

Question 49

wernickes area

Answer 49

comprehension problems