Chapter 8&9: Nervous System Flashcards

1
Q

Two divisions of the nervous system

A

Central and peripheral

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2
Q

Two functional divisions of the PNS

A

Somatic and autonomic

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3
Q

The functional cells of the nervous system

A

Neurons

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4
Q

Two kinds of fibers that extend from the neuron cell body

A

Dendrites and axons

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5
Q

Any tissue or organ that carries out a nervous system command

A

Effector

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6
Q

Which is not how skeletal muscles can function without conscious control

A

Training heart rate (breathing, relflex, blinking)

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7
Q

Three types of neurons include all except

A

Cardiac (sensory, inter neurons, motor)

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8
Q

Bundles of neuron fibers in the PNS

A

Nerves

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9
Q

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

A

Thoracic (cervical, brachial, lumbosacral)

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10
Q

Examples of neurotransmitters include all except

A

ATP (dopamine, serotonin, epinephrine)

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11
Q

Link between the brain and spinal nerves

A

Spinal cord

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12
Q

Regions of the body supplied by a single spinal nerve

A

Dermatomes

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13
Q

Which division of the nervous system controls skeletal muscles

A

Somatic nervous system

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14
Q

Primary role of nervous system includes all except

A

Transport nutrients and remove waste

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15
Q

Part of the neuron that carries impulses to the cell body

A

Dendrites

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16
Q

Part of the neuron that carries impulses away from cell body

17
Q

The brain stem includes all except

A

Cerebellum (pons, midbrain, medulla oblongata)

18
Q

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

A

Cerebellum

19
Q

Which is not a diagnostic test for the brain

A

RAS (EEG, PET, MRI)

20
Q

Some axons are covered by this insulation and layer of protection

21
Q

Neurons make up about ___% of our nervous tissue

22
Q

Neuroglia that forms myelin sheath in the PNS

A

Schwann cells

23
Q

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

A

Spinal cord

24
Q

Specialized electrical signals or nerve impulses

A

Action potential

25
Branch of nervous system that promotes fight or flight response
Sympathetic
26
How many pairs of cranial nerves in the body
12
27
How many pairs of spinal nerves in the body
31
28
Regions of sensory neurons on the skin supplied by a single spinal nerve
Dermatomes
29
The brain and spinal cord make up the ___ nervous system
Central