Chapter 15 cwp

Question 1

2 Class ___ axons are medium-diameter and myelinated

Answer 1

B

Question 2

5 Cells that secrete and circulate cerebrospinal fluid

Answer 2

ependymal

Question 3

7 Slowest method of impulse conduction

Answer 3

continuous

Question 4

13The most abundant type of neurons classified by shape

Answer 4

multipolar

Question 5

14Division of the nervous system involved with stimulating
skeletal muscles

Answer 5

somatic

Question 6

16Structure at the end of a neuron that responds to a stimulus

Answer 6

receptor

Question 7

19Class___ axons conduct impulses the slowest

Answer 7

c

Question 8

24Collection of neuron cell bodies in the PNS 8

Answer 8

ganglion

Question 9

25Type of summation related to multiple neurons stimulating
the same target

Answer 9

spatial

Question 10

26Cell that helps myelinate axons in the CNS 15

Answer 10

oligodendrocyte

Question 11

30___ integration determines the effect of all EPSPs and IPSPs
on a postsynaptic cel

Answer 11

signal

Question 12

4 The outer, cytoplasm-containing portion of a Schwann cel 10

Answer 12

neurilemia

Question 13

10Any cell that receives a stimulus from a neuron

Answer 13

postsynaptic

Question 14

12Ion most commonly responsible for the initial reversal of
polarity during an AP

Answer 14

sodium

Question 15

15___ bodies are responsible for the “gray” in gray
matter 5

Answer 15

nissl

Question 16

20(Large/Small)-diameter axons conduct impulses faster than
(Large/Small)-diameter axons

Answer 16

large, small

Question 17

22Collection of axons in the CNS 5

Answer 17

tract

Question 18

23Difference in electrical

Answer 18

polarity

Question 19

28Intracellular messenger system for hydrophilic ECMs

Answer 19

second

Question 20

3 Type of summation related to frequency of stimulation

Answer 20

temporal

Question 21

6 ___ ion concentration is higher in the ECF than the cytosol

Answer 21

sodium

Question 22

8 Phagocytic cells that protect the CNS

Answer 22

microglia

Question 23

14Collection of neuron cell bodies in the spinal cord 4

Answer 23

horn

Question 24

18Cells that surround capillaries and regulate movement of
substance between the blood and neurons

Answer 24

astrocyte

Question 25

20A neuron that transmits impulses between two other neurons

Answer 25

interneuron

Question 26

21Cell that helps myelinate axons in the PNS

Answer 26

schwann

Question 27

26Word in name of a postsynaptic potential that is decreasing away from RMP

Answer 27

excitatory

Question 28

1 The lipoproteinaceous sheath around a segment of an axon

Answer 28

myelin

Question 29

4 The cell membrane along the part of a neuron’s membrane that experiences action potentials 8

Answer 29

axolemma

Question 30

7 Diffusion of sodium ions through membrane can cause ___polarization

Answer 30

de

Question 31

11Specific part of a neuron that contains linear DNA molecules 10

Answer 31

Perikaryon

Question 32

12Collection of neuron cell bodies in the brain 7

Answer 32

Nucleus

Question 33

13An alternate name for the motor division

Answer 33

efferent

Question 34

15The ___ in a neuron’s cell body is responsible for the “gray” in gray matter

Answer 34

er

Question 35

16Word in name of disease involving degeneration of myelin sheaths

Answer 35

sclerosis

Question 36

17Distally-branched portions of an axon

Answer 36

telodendria

Question 37

22___ ___ is a common messenger for an indirect effect of a neurotransmitter

Answer 37

cyclic amp