2.1 -- neurons

Question 1

axon

Answer 1

conveys electrical signals along distances

Question 2

dendrites

Answer 2

receive signals from other cells

Question 3

axon terminals

Answer 3

transmits neurotransmitters from one neuron to another

Question 4

myelin sheath

Answer 4

to increase the speed at which impulses propagate along the myelinated fiber

Question 5

cell body

Answer 5

produces proteins for the dendrites, axons, & synaptic terminals

Question 6

synapse

Answer 6

transfers electric activity from one cell to another; between the neurons

Question 7

neurotransmitters

Answer 7

diffuse across the synaptic gap & transmit information to adjoining cells; inside the axon terminals

Question 8

nodes of ranvier

Answer 8

allow action potential to propagate quickly down an axon

Question 9

which way do the electrical impulses travel

Answer 9

from the dendrites to the axon terminals

Question 10

motor neuron

Answer 10

relays messages from the brain or spinal cord to the muscles & organs

Question 11

sensory neuron

Answer 11

transmits nerve impulses from sensory receptors to the central nervous system

Question 12

interneurons

Answer 12

relays messages from sensory neuron to motor neuron