chapter 2.2

Question 1

neurons

Answer 1

cell that communicate and sensory with the nervous sytem

Question 2

interneurons

Answer 2

connect only to nearby nuerons not all the body

Question 3

motor neurons

Answer 3

carry messages to your brain from muscles

Question 4

sensory neurons

Answer 4

carry information to your brain from senses (taste, touch, smell, etc)

Question 5

reflex

Answer 5

automatic muscles response

Question 6

cell body

Answer 6

performs basic activities

Question 7

axon

Answer 7

part of neuron that carries information to other neurons

Question 8

axon terminals

Answer 8

small branches at end of axon that connect with end of neurons

Question 9

dendrites

Answer 9

branches at the end of neuron that receive signals from other neurons

Question 10

synapse

Answer 10

a gap between two connecting neurons

Question 11

neurotransmitters

Answer 11

chemical messengers that travel across synapses from one neuron to the next

Question 12

endorphins

Answer 12

neurotransmitters that are involved with reducing pain and increasing pleasure

Question 13

dopamine

Answer 13

influences brain’s reward system and body’s movement

Question 14

serotonin

Answer 14

influences mood and sleep and appetite.

Question 15

epinephrine(adrenaline)

Answer 15

flight or fight

Question 16

histamine

Answer 16

immune system

Question 17

acetycholine

Answer 17

activates muscles

Question 18

GABA

Answer 18

helps control anxiety

Question 19

glutamate

Answer 19

helps with memory, learning and brain development

Question 20

agonists

Answer 20

enhance neurotransmitter

Question 21

antagonists

Answer 21

interfer with the impact of neurotransmitters

Question 22

synaptic vesicles

Answer 22

saclike containing neurotransmitters

Question 23

receptor sites

Answer 23

openings in dendrites that connect sort of like a key

Question 24

reuptake

Answer 24

when a neurotransmitter sends back up after failing to land on receptor site