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Nervous system test Flashcards

1
Q

how many paired nerves are in the cervical region?

A

8

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2
Q

where is the cervical region?

A

the neck

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3
Q

how many paired nerves are in the thoracic region?

A

12

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4
Q

where is the thoracic region?

A

middle part of the back

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5
Q

how many paired nerves are in the lumbar region?

A

5 paired nerves

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6
Q

where is the lumbar region?

A

lower back

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7
Q

how many paired nerves are in the sacral region?

A

5

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8
Q

where is the sacral region?

A

above the butt

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9
Q

how many paired nerves are in the Coccyx?

A

1

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10
Q

where is the coccyx?

A

the tailbone

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11
Q

how many spinal cord injuries occur each year

A

16,000

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12
Q

how many people survive a spinal cord injury each year?

A

10,000

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13
Q

how many people die each year due to a spinal cord injury?

A

6,000

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14
Q

what percentage of people suffer a spinal cord injury due to a car accident?

A

47%

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15
Q

what percentage of people suffer a spinal cord injury due to falling?

A

20.8%

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16
Q

what percentage of people suffer a spinal cord injury due to violence and gunshots?

A

14.6%

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17
Q

what percentage of people suffer a spinal cord injury due to sports?

A

14.2%

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18
Q

what percentage of people suffer a spinal cord injury due to something else?

A

3.4%

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19
Q

_________ is paralysis of two limbs and most common in the legs

A

paraplegia

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20
Q

_____ is paralysis of all four limbs

A

quadriplegia

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21
Q

_______ is automatic immediate responses to sensory impulses that are directed by the spinal cord before the brain becomes involved

A

reflexes

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22
Q

_______ works by association and is a learned response

A

conditioned reflex

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23
Q

the peripheral system contains how many paired nerves?

A

12

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24
Q

the paired nerves in the peripheral system do what?

A

carry impulses to the eyes, ears, nose, mouth and skin

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25
Q

activities of all internal organs are regulated by the _________ through the ______

A

medulla, ANS

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26
Q

what is the most common type of headache?

A

tension headache

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27
Q

when a tension headache occurs where do you suffer pain?

A

in the neck, shoulders and muscles near the skull

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28
Q

_______ occurs when muscles in your brain contract in a spasm

A

tension headache

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29
Q

what are the causes of tension headaches?

A

holding in anger, stress, not eating, not sleeping, loudness, light, eyestrain, dehydration, and lack of sleep

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30
Q

what are migraines known as?

A

vascular headaches

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31
Q

_______ occurs when change within the vascular system

A

migraine

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32
Q

your blood vessels _______ and ____________ causing visual disturbances in migraines

A

constrict and expand

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33
Q

what are the two mini systems within the autonomic nervous system?

A

sympathetic and para-sympathetic

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34
Q

_______ speeds up the body for action

A

sympathetic

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35
Q

_______slows down the body

A

para-sympathetic

36
Q

________ are products of the imagination in which memories or fantasies are temporarily confused with external reality

A

dreams

37
Q

when do dreams occur?

A

during periods of REM sleep

38
Q

during periods of REM sleep

A

rapid eye movement

39
Q

How long does REM sleep last?

A

20 minutes

40
Q

How many times can REM sleep occur?

A

4 or 5 times a night

41
Q

what are the three major areas of the brain?

A

cerebrum, cerebellum, brain stem

42
Q

_________is the largest part of the brain that is divided into hemispheres

A

cerebrum

43
Q

what does the right hemisphere of the cerebrum do?

A

controls most actions on the left side of the body

44
Q

the right hemisphere is thought to be the site of…..?

A

our artistic and creative abilities

45
Q

what does the left hemisphere of the cerebrum do?

A

controls most actions on the right side of the body

46
Q

the left hemisphere is thought to be the site of…?

A

the site of our scientific, mathematic, and logical reasoning (common sense)

47
Q

________coordinates all of your muscle movements and helps maintain your balance and coordination

A

cerebellum

48
Q

the brainstem contains the…..?

A

medulla

49
Q

the medulla is the size of a…?

A

walnut

50
Q

where does the spinal cord start?

A

the medulla

51
Q

the spinal cord goes through each….?

A

vertebrae

52
Q

________ carries impulses to and from the brain

A

spinal cord

53
Q

your ____________ represents the thickness of the spinal cord

A

index

54
Q

an average spinal cord is how many inches in length?

A

18

55
Q

how many paired nerves branch out from the spinal cord?

A

31

56
Q

_______controls the activities of each of the body’s other organs

A

nervous system

57
Q

what are the names of the 3 parts or mini systems of the nervous system?

A

central nervous system, peripheral nervous system, and autonomic nervous system

58
Q

what does CNS stand for?

A

central nervous system

59
Q

what does PNS stand for?

A

peripheral nervous system

60
Q

what does ANS stand for?

A

autonomic nervous system

61
Q

the central nervous system consists of…?

A

the brain and spinal cord

62
Q

_______ nervous system sends impulses to the central nervous system then to the rest of the body

A

peripheral

63
Q

________ nervous system sends impulses to a special area of the brain called the medulla

A

autonomic

64
Q

________ controls all of our involuntary functions

A

medulla

65
Q

what involuntary functions does the medulla control?

A

digestion, heartbeat, breathing, blood pressure and reflexes

66
Q

neurons are individual specialized cells that join to form…?

A

nerves

67
Q

_______receive and transmit impulses throughout the body

A

neurons

68
Q

how many miles per hour does a nerve impulse travel?

A

200 miles

69
Q

what are the two types of neuron fibers?

A

dendrites and axons

70
Q

______ carry impulses toward the main part of the cell

A

dendrites

71
Q

________take impulses away from the cell to other neurons

A

axons

72
Q

what are the two kinds of neurons?

A

sensory and motor

73
Q

___________receive and pass information about the temperature outside the body or pain within the body

A

sensory neurons

74
Q

________receive and carry impulses to the brain then the muscles and other organs of the body

A

motor neurons

75
Q

what is the master organ of the body?

A

the brain

76
Q

how much does the brain weigh?

A

3 pounds

77
Q

the brain is protected by three layers of membranes called?

A

meninges

78
Q

when you touch a hot stove, what is the order of neurons involved?

A

1.sensory
2.axons
3.dendrites
4. motor

79
Q

the first layer of the meninges is..?

A

a tough outer layer that protects the brain

80
Q

the two inner layers of the meninges are separated from each other by a clear fluid called _________?

A

cerebrospinal fluid

81
Q

cerebrospinal fluid acts as a…?

A

cushion or shock absorber for the brain

82
Q

_________is a procedure used to test for meningitis

A

spinal tap

83
Q

the frontal lobe is responsible for…?

A

the use of language

84
Q

the temporal lobe is responsible for…?

A

the use of hearing and smell

85
Q

the occipital lobe is responsible for…?

A

vision

86
Q

the parietal lobe is responsible for…?

A

sensory information- heat, cold, pain and touch

health (13 decks)

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