Chapter 5: Nervous System Flashcards

1
Q

exo-

A

away from, outside, external

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2
Q

hemi-

A

half

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3
Q

inter-

A

between

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4
Q

infra-

A

below, beneath

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5
Q

iso-

A

same, equal

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6
Q

pan-

A

all

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7
Q

para-

A

beside, near

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8
Q

poly-

A

much, many

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9
Q

quadri-

A

four

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10
Q

tox-

A

toxin, poison

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11
Q

-al

A

pertaining to

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12
Q

-algia

A

pain

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13
Q

-ar

A

pertaining to

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14
Q

-cele

A

hernia

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15
Q

-graphy

A

recording instrument

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16
Q

-ia

A

condition

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17
Q

-iatry

A

field of medicine

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18
Q

-itis

A

inflammation

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19
Q

-lepsy

A

seizure

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20
Q

-meter

A

measuring instrument

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21
Q

-paresis

A

slight or partial paralysis

TIP
paresis = partial

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22
Q

-plegia

A

paralysis

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23
Q

-scopy

A

visual examination

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24
Q

-stomy

A

mouthlike opening

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25
-tomy
cutting into, incision
26
homeostasis
the state of dynamic equilibrium in the internal environment of the body
27
Two parts of nervous system
central nervous system (CNS) peripheral nervous system (PNS)
28
CNS
Central Nervous System brain and spinal cord where data storage and information processing occurs
29
PNS
peripheral nervous system located outside of, or peripheral to, the CNS and includes the nerves in the arms and legs.
30
Neuron
nerve cell all have cell body, axon, and dendrites
31
Cell body (of a nerve cell)
houses all of the microscopic structures that keep the cell energized and functioning
32
Dendrites
resemble the branches of a tree, are responsible for receiving information from the internal and external environment and bringing this information to the cell body.
33
axon
sends electrical impulses and transmits signals to other cells
34
myelin sheath
special protective layer around the axon
34
Three major divisions of brain
cerebrum cerebellum brainstem
35
Cerebrum
largest portion of the brain divided into two hemispheres called left and right brain connected by corpus callosum
35
Corpus Callosum
connects the left and right hemispheres of the cerebrum
36
Cortex
surface of cerebrum characterized by deep folds and shallow grooves, increases surface area and maximizes function
37
Glia
specialized support cells that carry nutrients to the neurons
38
Four areas of the Cortex?
Frontal, Temporal, Parietal, Occipital FTPO Each of these areas is responsible for specific functions such as sensory perception, movement, emotions, memory, and behavior.
39
Cerebellum
"little brain" inferior and posterior to the rest of the brain size of fist, shaped like a walnut. It also has folds and grooves, similar to the cerebrum. It is responsible for posture, balance, and coordination.
40
Brainstem
anterior to the cerebellum includes medulla oblongata and the pons an essential pathway that conducts impulses between the brain and spinal cord and controls autonomic functions, such as breathing.
41
cranium
hard bones of the skull
42
Spinal Cord
extends from the base of the brain down to the second lumbar vertebra and is surrounded and protected by the vertebral column. It is divided into sections that correspond to the vertebrae and paired spinal nerves.
43
sensory impulses
GOING to the brain FROM the rest of the body
44
Motor Impulses
COMING from the brain TO the rest of hte body
45
Traumatic Brain Injuries (TBIs)
most commonly caused by falls, being hit by an object, or by motor vehicle accidents . Survivors can have impairments that may last for a few days or for the rest of their lives.
46
TBI to front of the brain, or frontal lobe
may cause problems with decision making, problem solving, behavior, and self-control.
47
TBI to the cerebellum, at the back of hte brain
may cause problems with balance and coordination
48
meninges
three membranes that protect both the brain and spinal cord provide structure for many small blood vessels ont eh brain's surface house cerebrospinal fluid that continuously circulates and provides cushion against injury from impact and sudden movement.
49
How many nerves int he PNS
31 pairs of spinal nerves 12 cranial nerves and nerves in the arms and legs almost all are part sensory and part motor, while some cranial nerves are only one or hte other.
50
Sensory Nerves
gather information from the skin, the muscles, and the joints. sensations such as temperature, touch, pressure, movement sense, position sense, and pain
51
Motor Nerves
control body movement. may be a conscious one,t hat prompts you to action, such as putting on a coat if you are cold or unconscious, such as reflexively lifting up your foot if you step on something sharp
52
Dermatomes
areas of the skin associated with specific spinal nerve roots (dermatome has two meanings. a dermatome is also a su rgical instrument that produces thin slices of skin))
53
Myotomes
groups of muscles associated with specific spinal nerve roots
54
Referred pain
when injuries such as compression of a spinal nerve root are felt along the associated dermatome rather than at the actual site of injury. feeling numbness or tingling in your arms or legs rather than your neck or back. injury to spinal nerve roots may cause muscle weakness in a group of muscles away from teh site of injury.
55
ANS
Autonomic Nervous System part of hte PNS controls involuntary functions consists of motor nerves to smooth muscle, cardiac muscle, and glands such as sweat glands and salivary glands. divided into sympathetic and parasympathetic nervous systems TIP autonomic = automatic
56
Sympathetic Nervous System
responsible for survival response known as fight-or-flight increased heart rate and force, increased blood pressure and glucose levels, bronchodilation, and decreased intestinal peristalsis. provide body with increased energy and oxygen while slowing some functions (such as digestion)) which are less important at the time
57
Parasympathetic Nervous System
creates opposite response as above, calms body down, dominates during nonstressful times includes decreased heart rate, bronchoconstriction, and increased peristalsis
58
cephal/o
head ex: cephalalgia (sĕf-ă-LĂL-jē-ă) pain of the head
59
cerebell/o
cerebellum ex: cerebellitis (sĕr-ĕ-bĕ-LĪT-ĭs) inflammation of the cerebellum
60
cerebr/o
brain ex: cerebrovascular (sĕ-rĕ-brō-VĂS-kŭ-lăr) pertaining to the brain and vessels
61
encephal/o
brain ex: encephalocele (ĕn-SĔF ă-lō-sēl) hernia of the brain
62
gangli/o
ganglion ex: ganglioma (găng-glē-Ō-mă) tumor of a ganglion
63
gli/o
glue, gluelike ex: glioma (gl ī-Ō-mă) gluelike tumor TIP: *gl*i/o = *gl*ue
64
lex/o
word, phrase ex: dyslexia (dĭs-LĔK-sē ă) bad, painful, or difficult words or phrases
65
mening/o
meninges ex: meningitis (mĕn-ĭn-JĪT-ĭs) inflammation of the meninges
66
meningi/o
meninges ex: meningioma (mĕ-nĭn-JĒ-ō-mă) tumor of the meninges
67
myel/o
spinal cord, bone marrow ex: myelography (mĭ-ĕ-LŌG-ră-fē) process of recording the spinal cord or bone marrow
68
narc/o
sleep, stupor ex: narcolepsy (NĂR-kō-lĕp-sē) seizure of sleep or stupor
69
neur/o
nerve ex: neurocytoma (nūr-ō-sī-TŌ-mă) tumor of a nerve cell
70
phas/o
speech ex: aphasia (ă-FĀ-zē-ă) absence of speech
71
psych/o
mind ex: psychiatry (sī-KĪ-ă-trē) field of medicine of the mind
72
radicul/o
nerve root ex: radiculopathy (ră-dĭ-kū-LŎ-pă-thē) disease of a nerve root
73
spin/o
spine ex: spinal stenosis (SPĪ-năl stĕ-NŌ-sĭs) abnormal condition of narrowing or stricture of the spinal cord
74
sthen/o
strength ex: myasthenia (mī-ăs-THĒ-nē-ă) condition of absence of muscle strength
75
thalam/o
thalamus ex: thalamotomy (thăl-ă-MŎT-ō-mē) cutting into or incision of the thalamus
76
ton/o
tension, tone ex: tonometer (tō-NŎM-ĕt-ĕr) measuring instrument for tension
77
ventricul/o
ventricle ex: ventriculoscopy (vĕn-trĭk-ū-LŎS-kō-pē) visual examination of a ventricle
78
ADHD
attention-deficit hyperactivity disorder
79
LOC
level of consciousness, loss of consciousness
80
ALS
amyotrophic lateral sclerosis (Lou Gehrig's disease)
81
LP
Lumbar Puncture
82
ANS
Autonomic Nervous System
83
MRI
Magnetic Resonance Imaging
84
CNS
Central Nervous System
85
MVA
Motor Vehicle Accident
86
CP
cerebral Palsy
87
MS
Multiple Sclerosis
88
CSF
CerebroSpinal Fluid
89
OCD
Obsessive-Compulsive Disorder
90
CT
Computed Tomography
91
PNS
Peripheral Nervous System
92
CVA
CerebroVascular Accident
93
SCI
Spinal Cord Injury
94
EEG
ElectroEncephaloGraphy
95
TBI
Traumatic Brain Injury
96
EMG
ElectroMyoGram
97
TGA
Transient Global Amnesia
98
GBS
Guillan-Barré syndrome
99
TIA
Transient Ischemic Attack
100
ICP
IntraCranial Pressure
101
TN
Trigeminal Neuralgia
102
Alzheimer’s disease (ĂLTS-hī-mĕrz dĭ-ZĒZ)
form of chronic, progressive dementia caused by the atrophy of brain tissue
103
amyotrophic lateral sclerosis (ALS) ă-mī-ō-TRŌ-fĭk LĂ-tĕr-ăl sklĕ-RŌ-sĭs)
chronic, progressive, degenerative neuromuscular disorder that destroys motor neurons of the body; also called Lou Gehrig’s disease
104
Bell’s palsy (bĕlz PAWL-zē)
form of facial paralysis, usually unilateral and temporary; also known as facial palsy
105
brain abscess (brān ĂB-sĕs)
collection of pus anywhere within the brain
106
cerebral concussion (sĕ-RĒ-brăl kŏn-KŬ-shŭn)
vague term referring to a brief loss of consciousness or brief episode of disorientation or confusion following a head injury
107
cerebral contusion (sĕ-RĒ-brăl kŏn-TOO-zhŭ n)
bruising of brain tissue
108
cerebral palsy (CP) (sĕ-RĒ-brăl PAWL-zē)
group of motor-impairment syndromes caused by lesions or abnormalities of the brain arising in the early stages of development
109
cerebrovascular accident (CVA) (sĕ-rĕ-brō-VĂS-kū-lăr ăk’sĭ-dĕnt)
damage or death of brain tissue caused by interruption of blood supply due to a clot or vessel rupture; also known as stroke
110
delirium (dĕ-LĬR-ē-ŭm)
acute, reversible state of agitated confusion, marked by disorientation, hallucinations, or delusions
111
dementia (dē-MĔN-shē-ă)
progressive neurological disorder, with numerous causes, in which an individual suffers an irreversible decline in cognition due to disease or brain damage; sometimes called senility
112
depression (dē-PRĔSH-ŭn)
mood disorder marked by loss of interest or pleasure in living
113
encephalitis (ĕn-sĕf-ă-LĪ-tĭs)
inflammation of the brain; often combined with meningitis and then called encephalomeningitis
114
epidural hematoma (ĕp-ĭ-DŪR-ăl hē-mă-TŌ-mă)
collection of blood between the dura mater and the skull
115
epilepsy (ĔP-ĭ-lĕp-sē)
chronic disorder of the brain marked by recurrent seizures, which are repetitive abnormal electrical discharges within the brain
116
Guillain-Barré syndrome (GBS) (gē-YĂN-băr-RĀ SĬN-drōm)
acute inflammatory disorder that causes rapidly progressing paralysis (which is usually temporary) and sometimes also sensory symptoms; also known as inflammatory polyneuropathy and acute infective polyneuritis. A variant of GBS is Miller Fisher Syndrome.
117
Huntington’s disease (HUN-ting-tunz dĭ-ZĒZ)
hereditary, progressive, degenerative nervous disorder that leads to bizarre, involuntary movements and dementia; also called Huntington chorea
118
meningitis (mĕn-ĭn-JĪT-ĭs)
infection and inflammation of the meninges, the spinal cord, and CSF, usually caused by an infectious illness; often combined with encephalitis and then called encephalomeningitis
119
migraine headache (MĪ-grān HED-āk)
familial disorder marked by episodes of severe throbbing headache that is commonly unilateral and sometimes disabling
120
multiple sclerosis (MS) (MŬL-tĭ-pul sklĕ-RŌ-sĭs)
disease involving progressive myelin degeneration, which results in loss of muscle strength and coordination
121
neural tube defect (NUR-ul TÜB dē-fekt)
incomplete closure of the spinal canal, which may allow protrusion of the spinal cord and meninges at birth, leading to paralysis; also known as spina bifida
122
Parkinson’s disease (PĂR-kĭn-sŏnz dĭ-ZĒZ)
progressive, degenerative disorder that results in tremors, gait changes, and occasionally dementia. Parkinsonism is a condition that resembles Parkinson’s disease. It has a different cause, such as medications, and symptoms can stabilize or improve.
123
peripheral neuropathy (pĕr-ĬF-ĕr-ăl nū-RŎP-ă-thē)
dysfunction of nerves that transmit information to and from the brain and spinal cord, characterized by pain, altered sensation, and muscle weakness
124
Poliomyelitis (pōl-ē-ō-mī-ĕl-Ī-tĭs)
inflammation of the spinal cord, caused by a virus, which may result in spinal and muscular deformity and paralysis
125
Reye’s syndrome (rīz SĬN-drōm)
serious disease associated with aspirin use by children with viral illnesses, which may result in permanent brain damage or even death
126
sciatica (sī-ĂT-ĭ-kă)
pain, numbness, weakness, or tingling that is felt from the lower back along the pathway of the sciatic nerve into the legs
127
shingles (SHĬNG-gulz)
unilateral painful vesicles occurring on the upper body, caused by the herpes varicella zoster virus; also called herpes zoster or zona
128
spinal cord injury (SCI) (SPĪ-năl kord IN-jă-rē)
traumatic bruising, crushing, or tearing of the spinal cord
129
spinal stenosis (SPĪ-năl stĕ-NŌ-sĭs)
narrowing of an area of the spine that puts pressure on the spinal cord and spinal nerve roots
130
subdural hematoma (sub-DUR-ul hē-mă-TŌ-mă)
collection of blood between the dura and the arachnoid layer (middle or second layer of the meninges)
131
tension headache (TĔN-shŭn HED-āk)
non-migraine headache in which pain is felt in all or part of the head
132
tetanus (TĔT-ă-nŭs)
noncontagious illness marked by severe, prolonged spasm of skeletal muscle fibers; also known as lockjaw
133
transient global amnesia (TGA) (TRĂNZ-ē-ĭnt GLŌ-băl ăm-NĒ-zē-ă)
rare disorder, not caused by a neurological event or injury, that causes sudden, temporary loss of recent memory
134
transient ischemic attack (TIA) (TRĂNZ-ē-ĭnt ĭs-KĒ-mĭk ă-TĂK)
temporary strokelike symptoms caused by a brief interruption of blood supply to a part of the brain
135
traumatic brain injury (TBI) (traw-MĂT-ĭk brān IN-jă-rē)
injury to the brain following a blow to the head, commonly caused by a fall or motor vehicle accident
136
trigeminal neuralgia (TN) (trī-JĔM-ĭn-ăl nū-RĂL-jē-ă)
neurological disorder that causes severe, episodic facial pain along the pathway of the fifth cranial (trigeminal) nerve; also called tic douloureux
137
Cerebrospinal fluid (CSF) analysis
Analysis of CSF for blood, bacteria, and other abnormalities
138
Computed tomography (CT)
Study of the brain and spinal cord using radiology and computer analysis
139
Electroencephalography (EEG)
Study of electrical activity of the brain
140
Electromyogram (EMG)
Record of muscle activity from electrical stimulation
141
Lumbar puncture (LP)
Puncture of subarachnoid layer at the fourth intervertebral space to obtain CSF for analysis
142
Magnetic resonance imaging (MRI)
Use of an electromagnetic field and radio waves to create visual images on a computer screen
143
Myelography
Radiography of the spinal cord and associated nerves after intrathecal injection (into the spinal canal) of a contrast medium