review 15

Question 1

The basic functional unit of the nervous system is the neuron. What is the major function of this cell type?

Answer 1

transmit messages from one part of the body to another in the form of nerve impulses

Question 2

forms the myelin sheath in the CNS

Answer 2

schwann cells

Question 3

schwann cells

Answer 3

forms the myelin sheath in the CNS

Question 4

lines CSF-filled cavities

Answer 4

ependymal cells

Question 5

ependymal cells

Answer 5

lines CSF-filled cavities

Question 6

surrounds the cell body of a neuron found in the PNS

Answer 7

surrounds the cell body of a neuron found in the PNS

Question 8

acts as a phagocyte in the CNS

Answer 9

acts as a phagocyte in the CNS

Question 10

forms the myelin sheath in the PNS

Answer 11

forms the myelin sheath in the PNS

Question 12

controls the chemical environment around neurons in the CNS

Answer 13

controls the chemical environment around neurons in the CNS

Question 14

afferent neuron

Question 15

central nervous system

Question 16

efferent neuron

Question 17

ganglion

Question 18

interneuron

Question 19

neuroglia

Question 20

neurotransmitters

Question 21

nerve

Question 22

nucleus

Question 23

peripheral nervous system

Question 24

synaptic cleft

Question 25

tract

Question 26

the brain and spinal cord collectively

Question 27

specialized supporting cells in the nervous system

Question 28

junction or point of close contact between neurons

Question 29

a bundle of axons inside the PNS

Question 30

neuron serving as part of the conduction pathway between sensory and motor neurons

Question 31

ganglia and spinal and cranial nerves

Question 32

collection of neuron cell bodies found within the CNS

Question 33

neuron that conducts impulses away from the CNS to muscles and glands

Question 34

neuron that conducts impulses toward the CNS from the body periphery

Question 35

chemicals released by neurons that stimulate or inhibit other neurons or effectors

Question 36

collection of neuron cell bodies found in the PNS

Question 37

bundle of axons inside the CNS

Question 38

1

Answer 38

dendrites

Question 39

2

Answer 39

nucleolus

Question 40

3

Answer 40

nucleus

Question 41

4

Answer 41

cell body

Question 42

5

Answer 42

Chromatophilic substance

Question 43

6

Answer 43

Axon hillock

Question 44

7

Answer 44

Schwann cell

Question 45

8

Answer 45

Axon

Question 46

9

Answer 46

Axon terminals

Question 47

Accommodation

Answer 47

The ability of the eyes to focus on different objects close up