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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
activities of all internal organs are regulated by the _________ through the ______
medulla, ANS
26
what is the most common type of headache?
tension headache
27
when a tension headache occurs where do you suffer pain?
in the neck, shoulders and muscles near the skull
28
_______ occurs when muscles in your brain contract in a spasm
tension headache
29
what are the causes of tension headaches?
holding in anger, stress, not eating, not sleeping, loudness, light, eyestrain, dehydration, and lack of sleep
30
what are migraines known as?
vascular headaches
31
_______ occurs when change within the vascular system
migraine
32
your blood vessels _______ and ____________ causing visual disturbances in migraines
constrict and expand
33
what are the two mini systems within the autonomic nervous system?
sympathetic and para-sympathetic
34
_______ speeds up the body for action
sympathetic
35
_______slows down the body
para-sympathetic
36
________ are products of the imagination in which memories or fantasies are temporarily confused with external reality
dreams
37
when do dreams occur?
during periods of REM sleep
38
during periods of REM sleep
rapid eye movement
39
How long does REM sleep last?
20 minutes
40
How many times can REM sleep occur?
4 or 5 times a night
41
what are the three major areas of the brain?
cerebrum, cerebellum, brain stem
42
_________is the largest part of the brain that is divided into hemispheres
cerebrum
43
what does the right hemisphere of the cerebrum do?
controls most actions on the left side of the body
44
the right hemisphere is thought to be the site of.....?
our artistic and creative abilities
45
what does the left hemisphere of the cerebrum do?
controls most actions on the right side of the body
46
the left hemisphere is thought to be the site of...?
the site of our scientific, mathematic, and logical reasoning (common sense)
47
________coordinates all of your muscle movements and helps maintain your balance and coordination
cerebellum
48
the brainstem contains the.....?
medulla
49
the medulla is the size of a...?
walnut
50
where does the spinal cord start?
the medulla
51
the spinal cord goes through each....?
vertebrae
52
________ carries impulses to and from the brain
spinal cord
53
your ____________ represents the thickness of the spinal cord
index
54
an average spinal cord is how many inches in length?
18
55
how many paired nerves branch out from the spinal cord?
31
56
_______controls the activities of each of the body's other organs
nervous system
57
what are the names of the 3 parts or mini systems of the nervous system?
central nervous system, peripheral nervous system, and autonomic nervous system
58
what does CNS stand for?
central nervous system
59
what does PNS stand for?
peripheral nervous system
60
what does ANS stand for?
autonomic nervous system
61
the central nervous system consists of...?
the brain and spinal cord
62
_______ nervous system sends impulses to the central nervous system then to the rest of the body
peripheral
63
________ nervous system sends impulses to a special area of the brain called the medulla
autonomic
64
________ controls all of our involuntary functions
medulla
65
what involuntary functions does the medulla control?
digestion, heartbeat, breathing, blood pressure and reflexes
66
neurons are individual specialized cells that join to form...?
nerves
67
_______receive and transmit impulses throughout the body
neurons
68
how many miles per hour does a nerve impulse travel?
200 miles
69
what are the two types of neuron fibers?
dendrites and axons
70
______ carry impulses toward the main part of the cell
dendrites
71
________take impulses away from the cell to other neurons
axons
72
what are the two kinds of neurons?
sensory and motor
73
___________receive and pass information about the temperature outside the body or pain within the body
sensory neurons
74
________receive and carry impulses to the brain then the muscles and other organs of the body
motor neurons
75
what is the master organ of the body?
the brain
76
how much does the brain weigh?
3 pounds
77
the brain is protected by three layers of membranes called?
meninges
78
when you touch a hot stove, what is the order of neurons involved?
1.sensory 2.axons 3.dendrites 4. motor
79
the first layer of the meninges is..?
a tough outer layer that protects the brain
80
the two inner layers of the meninges are separated from each other by a clear fluid called _________?
cerebrospinal fluid
81
cerebrospinal fluid acts as a...?
cushion or shock absorber for the brain
82
_________is a procedure used to test for meningitis
spinal tap
83
the frontal lobe is responsible for...?
the use of language
84
the temporal lobe is responsible for...?
the use of hearing and smell
85
the occipital lobe is responsible for...?
vision
86
the parietal lobe is responsible for...?
sensory information- heat, cold, pain and touch

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