neurons

Question 1

thalamus

Answer 1

structure near center of brain, serving as a “relay station” for rapid connections among the brain

Question 2

neurons

Answer 2

brains/nerve cells, distinguished by their unique shapes and ability to communicate with one another

Question 3

dendrites

Answer 3

projections that branch out from the main body of a neurons, receiving signals from other neurons

Question 4

axon

Answer 4

thin and long projection from a neuron that send outgoing signals to other neurons

Question 5

action potential

Answer 5

nerve impulses; electrochemical events in which an electrical current travels down the length of an axon

Question 6

myelin sheath

Answer 6

fatty substance that surrounds axons and acts as an electrical insulator

Question 7

synapse

Answer 7

small gap that separates two neuron; receive chemical communication

Question 8

neurotransmitters

Answer 8

chemical substances that travel across synapses between neurons; stored in synaptic vesicles

Question 9

receptors

Answer 9

sites on the dendrites of receiving neurons to which neurotransmitters can attach

Question 10

glilal cells

Answer 10

cells that hold neurons is place and support biological functions, supplying nutrients

Question 11

reuptake of neurotransmitters

Answer 11

neurotransmitters in synapse are reabsorbed into sending neurons OR degraded and broken down chemically by enzymes