Nerves

Question 1

axon

Answer 1

coveys impulses away from cell

Question 2

dendrite

Answer 2

receives impulses

Question 3

multipolar

Answer 3

1 axon with many dendrites

Question 4

bipolar

Answer 4

1 axon, 1 dendrite

Question 5

bipolar example

Answer 5

special sensory cells

Question 6

unipolar

Answer 6

1 process that divides and acts as both dendrite and axon

Question 7

unipolar example

Answer 7

sensory cells in dorsal root ganglia of spinal cord

Question 8

astrocytes

Answer 8

coordinate network activity to many neurons

Question 9

oligodendrocytes

Answer 9

produce myelin

Question 10

microglia

Answer 10

eat cellular debris

Question 11

ependymal cells

Answer 11

make cerebral spinal fluid

Question 12

glia cells of CNS

Answer 12

1) astrocytes
2) oligodendrocytes
3) microglia
4) ependymal cells

Question 13

glia cells of PNS

Answer 13

1) Schwann cells

2) satellite cells

Question 14

Schwann cells

Answer 14

make myelin

Question 15

satellite cells

Answer 15

supportive cells

Question 16

nucleus

Answer 16

cluster of cell bodies in CNS

Question 17

ganglion

Answer 17

cluster of cell bodies in PNS

Question 18

nerve

Answer 18

bundles of axons that run together in PNS

Question 19

tract

Answer 19

bundles of axons that run together in CNS

Question 20

afferent

Answer 20

conducting towards

Question 21

efferent

Answer 21

conduction away

Question 22

how many pairs of spinal nerves?

Answer 22

31

Question 23

white matter

Answer 23

composed of nerve cell processes that contains myelin

Question 24

gray matter

Answer 24

composed of nerve cell bodies, no myelin but rich in neurons

Question 25

dorsal horn

Answer 25

incoming sensory nerves

Question 26

ventral horn

Answer 26

motor neurons

Question 27

dorsal root

Answer 27

sensory nerve processes bringing info into spinal cord

Question 28

ventral root

Answer 28

nerve cell process on way to muscles

Question 29

dorsal ramus

Answer 29

mix of sensory and motor fibers that branch posteriorly (not many)

Question 30

ventral ramus

Answer 30

mix of sensory and motor fibers that branch anteriorly everywhere

Question 31

ventral horn progression

Answer 31

1) ventral horn
2) leave as rootlets and converge to form ventral root
3) spinal nerve

Question 32

dorsal horn progression

Answer 32

1) spinal cord
2) dorsal root ganglion
3) dorsal rootlets
4) dorsal root
5) dorsal horn, which swings around and goes to the back

Question 33

L2

Answer 33

hips

Question 34

L3

Answer 34

quads

Question 35

L4-L5

Answer 35

hamstrings-knee

Question 36

L4-S1

Answer 36

foot