Psyc 1101 Test 1

Front 1

biological psychology

Back 1

study of biological bases of behavior and mental processes

Front 2

neuroscience

Back 2

study of the nervous system

Front 3

nervous system

Back 3

body's primary communication network

Front 4

neurons

Back 4

basic cells of the nervous system

Front 5

endocrine system

Back 5

communication system closely linked to nervous system

Front 6

sensory neurons

Back 6

convey sensory information

Front 7

motor neurons

Back 7

communicate info to muscles and glands

Front 8

interneurons

Back 8

communicate info between neurons

Front 9

dendrites

Back 9

multiple short fibers that extend from neuron cell body and receive info from other neurons or receptor cells

Front 10

axon

Back 10

long fluid filled tube that carries a neurons message to other parts of the body

Front 11

glial cells

Back 11

support cells that assist neurons. provide nutrition remove waste etc

Front 12

myelin sheath

Back 12

white fatty covering around axons of certain neurons to increase communication speed

Front 13

action potential

Back 13

brief electrical impulse by which info is transmitted along axon

Front 14

stimulus threshold

Back 14

minimum level of stimulation needed to activate a neuron

Front 15

resting threshold

Back 15

state in which neuron is prepared to activate and send message

Front 16

all or none law

Back 16

cannot partially trigger a neuron

Front 17

synapse

Back 17

point of communication between two neurons

Front 18

synaptic gap

Back 18

space between axon of one cell and dendrite of another

Front 19

axon terminal

Back 19

branches at end of axon contain synaptic vesicles

Front 20

synaptic vesicles

Back 20

tiny pouches/sacs that contain neurotransmitters

Front 21

synaptic transmission

Back 21

process through which neurotransmitters are released cross gap and interact with other neurons

Front 22

reuptake

Back 22

process by which neurotransmitter molecules detach from a postsynaptic neuron and are reabsorbed by a presynaptic neuron to be recycled

Front 23

acetylcholine

Back 23

n/t that causes muscle contractions. involved with learning and memory

Front 24

dopamine

Back 24

n/t involved in the regulation of bodily movement, thought processes and rewarding sensations

Front 25

serotonin

Back 25

n/t involved in sensory perceptions, sleep and emotions

Front 26

norepinephrine

Back 26

n/t involved in learning , memory, and regulation of sleep, also a hormone released by adrenal glands

Front 27

Gaba

Back 27

n/t communicates an inhibitory message

Front 28

endorphins

Back 28

n/t that regulate pain receptors

Front 29

agonist

Back 29

chemical that binds to receptor and triggers response

Front 30

antagonist

Back 30

blocks receptors and inhibits cells

Front 31

central nervous system

Back 31

brain and spinal cord

Front 32

peripheral nervous system

Back 32

nervous system - CNS

Front 33

somatic nervous system

Back 33

part of PNS communicates to CNS carriers motor messages

Front 34

autonomic nervous system

Back 34

part of PNS regulates involuntary responses

Front 35

sympathetic nervous system

Back 35

part of autonomic nervous system that produces rapid physical arousal in response to threats

Front 36

parasympathetic NS

Back 36

part of ANS regulates normal functions

Front 37

pituitary glands

Back 37

endocrine glands attached to base of brain that secrets hormones