Chapter 10: The Nervous System

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139 Terms

1
cerebral angiography
X-ray of the blood vessels in the brain after a contrast medium (dye) has been injected; used to diagnose a CVA and other injuries and disorders of the brain.
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2
electroencephalogram (EEG)
Record of the electrical impulses in the brain; used to diagnose neurological conditions that affect brain function and level of consciousness.
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3
lumbar puncture (LP); spinal tap
Insertion of a needle between two lumbar vertebrae (in the lower spine) to remove a sample of cerebrospinal fluid for diagnostic evaluation or therapeutic treatment; commonly used to diagnose meningitis.
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4
positron emission tomography (PET)
Procedure that uses nuclear medicine and computerized tomography to generate images of the brain; commonly used to diagnose a CVA, Alzheimer's disease, and epilepsy. Also called a brain scan.
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5
reflex testing
Diagnostic test in which a part of the body is percussed (tapped) with a reflex hammer or other diagnostic stimulus to measure the presence and strength of muscular reflexes.
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6
Babinski sign
Reflex in which the toes curl upward when the plantar surface (sole) of the foot is stimulated. A positive Babinski sign in an adult or child older than two years of age indicates a disorder in the brain or nervous system.
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7
carotid endarterectomy
Surgical removal of fatty deposits in one or both carotid arteries (arteries that supply blood to the brain); commonly used to prevent a CVA.
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8
cognitive behavioral therapy (CBT)
Form of psychotherapy or mental health counseling wherein the goal is to help the client to gain an improved awareness of negative thought processes and adopt strategies for counteracting negative thinking.
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9
craniectomy
Surgical removal of part of the skull to gain access to the brain; most commonly used to treat swelling in the brain.
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10
diskectomy
Surgical removal of a herniated (protruding) vertebral disk.
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11
nerve block
Injection of a local or regional anesthetic or anesthesia to prevent pain in an area near a nerve.
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12
anesthetic
Drug that causes a reversible loss of sensation or pain; used to deaden pain temporarily.
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13
Hemiplegia
is when half of the same side of your body is paralyzed
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14
Paraplegia
is when both legs (and sometimes torso) are paralyzed
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15
Quadriplegia
is when all limbs and torso are paralyzed
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16
Hemiplegia (specific cause)
trauma above the C6 portion of spinal cord
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17
Paraplegia (specific cause)
trauma to the thoracic vertebrae (T2-T12)
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18
Quadriplegia (specific cause)
SCI to C1 down to T1
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19
Encephalocele
Herniation of brain tissue through a gap in the skull
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20
Encephalocele (congenital)
Congenital (present at birth)
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21
Bell's Palsy
Unilateral (one-sided) paralysis of the nerves that control the facial muscles, causing one side of the face to droop.
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22
Cerebral Aneurysm
Abnormal, localized (limited to one area) dilation of a blood vessel in the cerebrum.
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23
Cerebral Aneurysm (specifics)
Usually, the dilation occurs in an artery. Cerebral aneurysms may place pressure on a nerve or other brain tissues and may rupture, causing severe complications.
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24
Dyslexia
A learning disorder characterized by difficulty in recognizing and comprehending written language.
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25
Hydrocephalus
Accumulation of excess cerebrospinal fluid inside the ventricles of the brain, which causes cephalomegaly (enlargement of the head) and may cause brain damage; commonly seen in young children.
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26
Alzheimer's Disease
Deterioration of the frontal and occipital lobes of the brain.
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27
Alzheimer's Disease (symptoms)
Type of dementia; irreversible memory loss, deterioration of intellect, speech, and movement disturbances, disorientation.
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28
Parkinson's Disease
Chronic, degenerative CNS disorder characterized by fine muscle tremors, rigidity, and a slow or shuffling gait.
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29
Parkinson's Disease (cause)
Gradual progressive loss of control over movements due to inadequate levels of the neurotransmitter dopamine in the brain.
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30
Seizure
Disruption of electrical activity in the brain.
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31
Seizure (types)
Grand mal: violent muscle contractions and loss of consciousness (tonic-clonic seizure); Petit mal (absence seizure): brief, sudden lapse of consciousness, usually characterized by vacant staring for 10-15 seconds.
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32
Traumatic Brain Injury
Blow to the head or a penetrating head injury that damages the brain.
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33
Concussion
May result in temporary loss of awareness and brain functions.
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34
Concussion (symptoms)
Memory loss, impaired coordination, difficulty with balance, dizziness.
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35
Contusion
Bruise to the brain, can cause bleeding and swelling in the brain.
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36
Cranial hematoma
A mass of blood that forms between skull and dura mater as a result of the brain colliding against the skull, creates pressure on the brain.
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37
Stroke (CVA)
Death of brain tissue that occurs when the blood flow to the brain is disrupted because a blood vessel is either blocked or has ruptured.
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38
Ischemic Stroke
Blood vessel in brain becomes blocked.
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39
Hemorrhagic Stroke
Weakened blood vessel ruptures and bleeds into the surrounding tissue of the brain, putting pressure on the brain tissue.
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40
Stroke recognition
F: Face dropping; A: Arm weakness; S: Speech difficulties; T: Time to call 911.
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41
Multiple Sclerosis
Progressive autoimmune disorder characterized by inflammation that causes demyelination of the myelin sheath. Symptoms: weakness of numbness, uncoordinated movements.
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42
anxi/o
anxious; uneasy
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43
cephal/o
head
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44
cerebell/o
cerebellum
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45
cerebr/o
cerebrum
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46
contus/o
to bruise
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47
crani/o
skull
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48
dendr/o
tree-like; branches
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49
dur/o
dura mater
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50
encephal/o
brain
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51
esthes/o, esthesi/o
sensation
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52
gangli/o
tumor; cystic tumor
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53
gli/o
glue
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54
hormon/o
hormone
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55
hydr/o
water
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56
hypn/o
sleep
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57
iatr/o
physician; treatment
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58
isch/o
back; to hold back
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59
lamin/o
lamina (thin plate or layer; arch)
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60
lex/o
word
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61
medull/o
medulla oblongata
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62
megal/o
large; great; grand
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63
mening/o, meningi/o
meninges
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64
ment/o
mind
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65
myel/o
bone marrow; spinal cord
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66
narc/o
numbness; sleep; stupor
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67
neur/o
nerve
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68
phas/o
speech
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69
phob/o
fear
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70
phren/o
mind
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71
pol/o
extreme
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72
poli/o
gray matter
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pont/o
pons
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psych/o
mind
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75
radicul/o
nerve root
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schiz/o
split
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77
somat/o
body
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78
synaps/o, synapt/o
point of contact; to join
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79
syncop/o
to cut off; cut short; faint
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80
tax/o
coordination; order
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81
tempor/o
the temples
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thalam/o
thalamus
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83
thec/o
sheath (meninges)
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84
traumat/o
trauma; injury; wound
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85
troph/o
development; nourishment
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86
ventricul/o
ventricle
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vertebr/o
vertebrae; spinal column bones
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88
af-
toward; near
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89
bi-
two; both
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90
con-
together; with
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91
dys-
painful; difficult
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92
ef-
out of; outside
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93
en-
in; within
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94
epi-
on; over; upon
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95
hemi-
half
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96
intra-
within; into
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97
micro-
small
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98
mono-
one; single
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99
par-, para-
near; beside; alongside; beyond; abnormal
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100
poly-
many; much
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robot