exam4

Question 1

axonal transport toward soma

Answer 1

retrograde

Question 2

hyperpolarization?

Answer 2

more (-) than resting state

Question 3

what do SCHWANN CELLS do?

Answer 3

myelinate ONE axon at a time - in PNS

Question 4

can CNS nerves regenerate?

Answer 4

no

Question 5

what’s the disease where myelin sheath breaks down, replaced w scar tissue?

Answer 5

multiple sclerosis

Question 6

pic of one axon, one dendrite, what type of neuron and where found?

Answer 6

bipolar neuron, retina

Question 7

what do OLIGODENDROCYTES do?

Answer 7

produce myelin (several axons at a time) - in CNS

Question 8

pic of confused lookin dendrite w no axon, what type of neuron and where found?

Answer 8

anaxonic neuron, brain

Question 9

retrograde axonal transport

Answer 9

toward soma

Question 10

what is electrical activity down axon when myelin present called?

Answer 10

saltatory conduction

Question 11

pic of neuron with body off to the side, what type and where found?

Answer 11

unipolar neuron, skin

Question 12

axonal transport away from soma

Answer 12

anterograde

Question 13

what do EPENDYMAL CELLS do?

Answer 13

produce CSF, line cavity of brain - in CNS

Question 14

what do ASTROCYTES do?

Answer 14

framework, blood-brain barrier, regulate chem comp - in CNS

Question 15

soma -> axon -> presynaptic neuron -> ? -> ?

Answer 15

synapse, postsynaptic neuron

Question 16

depolarization + or - ?

Answer 16

+

Question 17

pic of buncha dendrites, what type of neuron and where found?

Answer 17

multipolar neuron, brain

Question 18

repolarization + or - ?

Answer 18

-

Question 19

what do SATELLITE CELLS do?

Answer 19

electrical insulation, chem environ - in PNS

Question 20

anterograde axonal transport

Answer 20

away from soma

Question 21

what do MICROGLIAL CELLS do?

Answer 21

macrophage (white blood cells) - in CNS

Question 22

can PNS nerves regenerate?

Answer 22

yes