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PHC CH 7 > PHC CH 7.6 > Flashcards

PHC CH 7.6 Flashcards

1
Q

What is the nervous system?

A

The master controller

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2
Q

Brain and spinal cord

A

CNS

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3
Q

12 cranial nerve pairs and 31 spinal nerve pairs

A

PNS

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4
Q

PNS split into

A

Somatic and autonomic

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5
Q

Somatic consists of

A

Sensory and motor nerves

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6
Q

Autonomic consists of

A

Sympathetic and parasympathetic

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7
Q

Speeds up body; starts the fight or flight response

A

Sympathetic

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8
Q

Slows down body after fight or flight response

A

Parasympathetic

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9
Q

Spaces between axons and dendrites

A

Synapse

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10
Q

Carry impulses toward the cell body; many

A

Dendrites

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11
Q

Carry impulses away from body; single

A

Axon

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12
Q

Afferent

A

Sensory nerves

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13
Q

Cerebellum

A

Posture, balance, muscle coordination

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14
Q

Cerebrum

A

Thought, reasoning, memory, speech, sensation, etc

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15
Q

Diencephalon

A

Contains thalamus and hypothalamus

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16
Q

Thalamus

A

Relay center and directs sensory impulses to the cerebrum

17
Q

Hypothalamus

A

Regulates and controls the autonomic nervous system, temperature, appetite, water balance, sleep. Emotions

18
Q

Midbrain

A

Conducting impulses between brain parts and for certain eye and auditory reflexes

19
Q

Pons

A

Chewing, tasting, and saliva production; respiration

20
Q

Medulla oblongata

A

Heartbeat, respiration, swallowing, coughing, and blood pressure

21
Q

Spinal cord

A

Protected by vertebrae; Carrie’s sensory to the brain and motor messages from the brain to the muscles and glands

22
Q

Meninges three layers from toughest to weakest

A

Dura mater, arachnoid membrane, and pia mater,

23
Q

How many ventricles does the brain have?

A

Four

24
Q

Cerebrospinal fluid

A

Shock absorber to protect brain and spinal cord; flows through ventricles

25
Q

Cerebrovascular accident or stroke or apoplexy

A

When blood flow to brain is impaired

26
Q

Ischemic stroke

A

Blockage

27
Q

Hemorrhagic stroke

A

Blood vessel in brain bursts and bleeds

28
Q

Nerve pain

A

Neuralgia

29
Q

Shingles

A

Acute inflammation of nerve cells caused by herpes virus

30
Q

Parkinson’s disease

A

Degeneration of brain cells

31
Q

A chronic, progressive, disabling condition resulting from a degeneration of the myelin sheath

A

Multiple sclerosis

32
Q

Increases rate of impulse tranmission and insulates and maintains the axon

A

Myelin sheath

PHC CH 7 (4 decks)

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