Chapter 8&9: Nervous System

Question 1

Two divisions of the nervous system

Answer 1

Central and peripheral

Question 2

Two functional divisions of the PNS

Answer 2

Somatic and autonomic

Question 3

The functional cells of the nervous system

Answer 3

Neurons

Question 4

Two kinds of fibers that extend from the neuron cell body

Answer 4

Dendrites and axons

Question 5

Any tissue or organ that carries out a nervous system command

Answer 5

Effector

Question 6

Which is not how skeletal muscles can function without conscious control

Answer 6

Training heart rate (breathing, relflex, blinking)

Question 7

Three types of neurons include all except

Answer 7

Cardiac (sensory, inter neurons, motor)

Question 8

Bundles of neuron fibers in the PNS

Answer 8

Nerves

Question 9

3 primary branches of spinal nerves that form plexuses include all except

Answer 9

Thoracic (cervical, brachial, lumbosacral)

Question 10

Examples of neurotransmitters include all except

Answer 10

ATP (dopamine, serotonin, epinephrine)

Question 11

Link between the brain and spinal nerves

Answer 11

Spinal cord

Question 12

Regions of the body supplied by a single spinal nerve

Answer 12

Dermatomes

Question 13

Which division of the nervous system controls skeletal muscles

Answer 13

Somatic nervous system

Question 14

Primary role of nervous system includes all except

Answer 14

Transport nutrients and remove waste

Question 15

Part of the neuron that carries impulses to the cell body

Answer 15

Dendrites

Question 16

Part of the neuron that carries impulses away from cell body

Answer 16

Axons

Question 17

The brain stem includes all except

Answer 17

Cerebellum (pons, midbrain, medulla oblongata)

Question 18

The little brain located beneath the posterior part of the cerebral hemisphere

Answer 18

Cerebellum

Question 19

Which is not a diagnostic test for the brain

Answer 19

RAS (EEG, PET, MRI)

Question 20

Some axons are covered by this insulation and layer of protection

Answer 20

Myelin

Question 21

Neurons make up about ___% of our nervous tissue

Answer 21

10

Question 22

Neuroglia that forms myelin sheath in the PNS

Answer 22

Schwann cells

Question 23

The pathway for sensory and motor impulses to and from the brain

Answer 23

Spinal cord

Question 24

Specialized electrical signals or nerve impulses

Answer 24

Action potential

Question 25

Branch of nervous system that promotes fight or flight response

Answer 25

Sympathetic

Question 26

How many pairs of cranial nerves in the body

Answer 26

12

Question 27

How many pairs of spinal nerves in the body

Answer 27

31

Question 28

Regions of sensory neurons on the skin supplied by a single spinal nerve

Answer 28

Dermatomes

Question 29

The brain and spinal cord make up the ___ nervous system

Answer 29

Central