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Medical Terminology
Ch 12--Nervous System
184
Medical
Undergraduate 3
11/20/2010

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Term
Divisions of the nervous system
Definition
CNS (central nervous system)
and
PNS (peripheral nervous system)
Term
parts of the CNS
Definition
brain and spinal cord
Term
parts of the PNS
Definition
cranial nerves and spinal nerves
Term
organs of the nervous system
Definition
brain, spinal cord, and nerves
Term
neurology
Definition
study of the nervous system
Term
neurologist
Definition
physician who specializes in the study of the nervous system
Term
neurosurgery
Definition
a speciality area concerned with the surgical approach to treating conditions of the nervous system
Term
cephal/o
Definition
head
Term
cerebell/o
Definition
cerebellum
Term
cerebr/o
Definition
cerebrum
Term
encephal/o
Definition
brain
Term
gil/o
Definition
glue
Term
medull/o
Definition
medulla
Term
poli/o
Definition
gray matter
Term
phas/o
Definition
speech
Term
neur/o
Definition
nerve
Term
myel/o
Definition
spinal cord
Term
meningi/o
Definition
meninges
Term
mening/o
Definition
meninges
Term
narc/o
Definition
stupor
Term
pont/o
Definition
pons
Term
radicul/o
Definition
nerve root
Term
thalam/o
Definition
thalamus
Term
ventricul/o
Definition
ventricle
Term
-algesia
Definition
pain, sensitivity
Term
-esthesia
Definition
feeling, sensation
Term
-kinesia
Definition
movement
Term
-lepsy
Definition
seizure
Term
-paresis
Definition
weakness
Term
-phasia
Definition
speech
Term
-plegia
Definition
paralysis
Term
-sthenia
Definition
strength
Term
-taxia
Definition
muscle coordination
Term
neuralgia
Definition
pain in a nerve(s)
Term
neuroasthenia
Definition
nervous weakness, exhaustion, prostration
Term
neuroma
Definition
tumor composed of nerve cells
Term
neurofibromatosis
Definition
genetic disorder that affects cell growth of neural tissue
Term
neuropathy
Definition
any nerve disease
Term
neuritis
Definition
inflammation of a nerve
Term
neurectomy
Definition
surgical removal of a nerve or part of one
Term
anencephaly
Definition
a congenital condition in where there is lack of development of the brain
Term
electroencephalography
Definition
recording of brain electrical activity
Term
encephalocele
Definition
herniation of the brain
Term
encephalopathy
Definition
any disease of the brain
Term
meningoencephalitis
Definition
inflammation of the brain and its meninges
Term
encephalitis
Definition
inflammation of the brain
Term
two types of cells of the nervous tissue
Definition
neurons and neuroglial cells
Term
neurons condut...
Definition
electrical impulses
Term
three basic parts of a neuron
Definition
dendrites, nerve cell body, and axon
Term
highly branched projections of a neuron that travel into the nerve cell body and receive impulses
Definition
dendrite
Term
part of the neuron that contains the nucleus
Definition
nerve cell body
Term
a single part of the neuron that travels away from the nerve cell body
Definition
axon
Term
location of neuroglial cells
Definition
in the nervous tissue
Term
function of neuroglial cells
Definition
each has a different support function, some make myelin
Term
myelin
Definition
fatty substance that acts as insulation for many axons
Term
neuroglial cells do not...
Definition
conduct electrical impulses
Term
demyelination
Definition
loss of myelin
Term
This system consists of both white matter and gray matter
Definition
CNS
Term
gray matter is comprised of...
Definition
unsheathed or unmeylinated cell bodies and dendrites
Term
white matter is...
Definition
myelinated nerve fibers
Term
tracts
Definition
bundles of nerve fibers interconnecting different parts of the CNS
Term
CNS is encased and protected by three membranes known as...
Definition
meninges
Term
dura mater
Definition
means tough mother, forms a tough, fibrous sac around the CNS (outer layer)
Term
subdural space
Definition
space between the dura mater and arachnoid layer
Term
arachnoid layer
Definition
means spider-like, is a thin delicate layer attached to the pia mater by web-like filaments (middle layer)
Term
arachnoid layer
Definition
means spider-like, is a thin delicate layer attached to the pia mater by web-like filaments (middle layer)
Term
subarachnoid space
Definition
space between the arachnoid layer and pia mater, CSF circulates here
Term
pia mater
Definition
means soft mother, applied directly to the surface of the brain (inner layer)
Term
meningioma
Definition
tumor of the meninges
Term
meningitis
Definition
inflammation of the meninges
Term
meningocele
Definition
congenital herniation of the skull or spinal cord in which the meninges protrude
Term
meningopathy
Definition
any disease of the meninges
Term
meningomyelocele
Definition
congenital herniation of the spinal cord and meninges through a defect in the vertebral column
Term
spinal bifida
Definition
embryonic failure of fusion of the vertebral arches
Term
cephalgia
Definition
headache, head pain
Term
cephalodynia
Definition
headache, head pain
Term
hydrocephalus
Definition
pertaining to increased fluid in the brain
Term
macrocephalia
Definition
abnormally large head
Term
cephalomegaly
Definition
abnormally large head
Term
microcephalia
Definition
abnormally small head
Term
craniocele
Definition
herniation of part of the brain through the skull
Term
cranioplasty
Definition
surgical repair of the skull
Term
craniectomy
Definition
removal of part of the skull
Term
craniotomy
Definition
incision into the skull
Term
craniostomy
Definition
to create a surgical opening in the skull
Term
functions of the brain
Definition
coordinates most body activites, center for all thought, memory, judgment, and emotion
Term
four sections of the brain
Definition
cerebrum, cerebellum, diencephalon, and brain stem
Term
cerebrospinal
Definition
pertaining to the cerebrum and spinal cord
Term
cerebrum is the...section of the brain
Definition
largest
Term
functions of the cerebrum
Definition
processes thoughts, judgment, memory, association skills, and ability to discriminate between items
Term
outer layer of the cerebrum
Definition
cerebral cortex, composed of folds of gray matter
Term
gyri (gyrus)
Definition
convolutions of the gray matter of the cerebrum
Term
sulci (sulcus)
Definition
fissures that seperate out the gyri
Term
left and right halves of the cerebrum
Definition
cerebral hemispheres
Term
each cerebral hemisphere has...lobes
Definition
4
Term
cerebrosclerosis
Definition
hardening of the cerebral hemispheres
Term
lobes of the cerebrum
Definition
frontal, parietal, occipital, and temporal
Term
location of frontal lobe
Definition
most anterior portion
Term
function of frontal lobe
Definition
controls motor function, personality, and speech
Term
lobotomy
Definition
removal of the frontal lobe of the brain
Term
location of parietal lobe
Definition
most superior portion
Term
function of parietal lobe
Definition
receives and interprets nerve impulses from sensory receptors and interprets language
Term
location of occipital lobe
Definition
most posterior portion
Term
function of occipital lobe
Definition
controls vision
Term
location of temporal lobe
Definition
left and right lateral portion
Term
function of temporal lobe
Definition
controls hearing and smell
Term
syncope
Definition
loss of consciousness or fainting due to a sudden lack of oxygen in the brain
Term
somnambulism
Definition
sleep walking
Term
somn/o
Definition
stupor
Term
location of diencephalon
Definition
below the cerebrum
Term
the two areas that the diencephalon contains (two of the most critical areas of the brain)
Definition
thalamus and hypothalamus
Term
thalamus is composed of
Definition
gray matter
Term
thalamus acts as center for
Definition
relaying impulses from the eyes, ears, and skin to the cerebrum
Term
pain perception is controlled by...
Definition
thalamus
Term
hypothalamus is located...
Definition
just below the thalamus
Term
hypothalamus controls...
Definition
body temp, appetite, sleep, sexual desires, and emotions
Term
hypothalamus is responsible for controlling what systems?
Definition
ANS (autonomic nervous system), CV system, GI system, and release of hormones from the pituitary gland
Term
cerebellum aids in...
Definition
coordinating voluntary body movements and maintaining blance and equilibrium
Term
cerebellum refines...that is initiated in the cerebrum
Definition
muscular movement
Term
cerebellar
Definition
pertaining to the cerebellum
Term
cerebellitis
Definition
inflammation of the cerebellum
Term
three parts of the brain stem
Definition
midbrain, pons, and medulla oblongata
Term
midbrain acts as a pathway for...
Definition
impulses to be conducted between the brain and spinal cord
Term
pons connects...
Definition
cerebellum to the rest of the brain
Term
medulla oblongata (most inferior portion of the brain) connects...
Definition
the brain to the spinal cord
Term
brain ventricles contain...
Definition
CSF (cerebrospinal fluid)
Term
CSF
Definition
watery, clear fluid that provides protection from shock or sudden motion to the brain
Term
location of ventricles
Definition
1 in each cerebral hemisphere, 1 in the thalamus, and 1 in front of the cerebellum
Term
inner core of the spinal cord contains...
Definition
gray matter
Term
outer portion of the spinal cord is...
Definition
myelinated white matter
Term
spinal cord has...tracts
Definition
ascending and descending
Term
ascending tracts
Definition
carries sensory information up to the brain
Term
descending tracts
Definition
carries motor information down from the brain to a peripheral nerve
Term
myelitis
Definition
inflammation of the spinal cord
Term
myelography
Definition
x-ray recording of the spinal cord
Term
myelopathy
Definition
any disease of the spinal cord
Term
myelotome
Definition
instrument used to cut or dissect the spinal cord
Term
myelodysplasia
Definition
difficult or defective formation of the spinal cord
Term
encephalomyelitis
Definition
inflammation of the brain and spinal cord
Term
function of the spinal cord
Definition
provide a pathway for impulses to travel to and from the brain
Term
spinal cord is actually a column of nervous tissue that...
Definition
extends from the medulla oblongata down to L2 within the vertebral column
Term
poliomyelitis
Definition
inflammation of the gray matter of the spinal cord (acute viral infection)
Term
hemiplegia
Definition
paralysis that affects one half of the body
Term
paraplegia
Definition
paralysis of both legs
Term
quadriplegia
Definition
paralysis of all 4 extremities
Term
hemiparesis
Definition
slight paralysis affecting one side of the body
Term
aphasia
Definition
loss of ability to speak
Term
dysphasia
Definition
difficulty in speaking
Term
apraxia
Definition
loss of ability to use objects properly
Term
aphagia
Definition
loss of ability to eat or swallow
Term
ataxia
Definition
loss of muscle coordination
Term
agnosia
Definition
impairment of the ability to recognize things
Term
-gnosia
Definition
knowledge
Term
PNS contains what and how many nerves?
Definition
12 pairs of cranial nerves, 31 pairs of spinal nerves
Term
neuritis
Definition
inflammation of the nerves
Term
radiculitis
Definition
inflammation of the nerve roots
Term
sciatica
Definition
inflammation of the sciatic nerve
Term
neurorrhaphy
Definition
suture of a severed nerve
Term
neuroplasty
Definition
surgical repair of a nerve
Term
Cranial nerve X
Definition
vagus nerve
Term
vagus nerve
Definition
supplies most organs in abdominal thoracic cavities
Term
afferent neurons
Definition
sensory neurons, carry sensory info from a sensory receptor to CNS
Term
efferent neurons
Definition
motor neurons, cary activity instructions from the CNS to muscles or glands
Term
ganglion
Definition
knot-like mass of nerve cell bodies grouped together
Term
ganglions are located...
Definition
outside the CNS
Term
divisions of the PNS
Definition
autonomic and somatic
Term
ganglitis
Definition
inflammation of a ganglion
Term
branches of the ANS
Definition
sympathetic and parasympathetic
Term
sympathetic nerves
Definition
"fight or flight" stimulate body in time of stress or crisis
Term
parasympathetic nerves
Definition
"rest and digest"
Term
stroke or CVA can be caused by...
Definition
thrombus, embolus, or rupture
Term
AD
Definition
alzheimer's disease
Term
ANS
Definition
autonomic nervous system
Term
CNS
Definition
central nervous system
Term
CP
Definition
cerebral palsy
Term
CSF
Definition
cerebrospinal fluid
Term
CVA
Definition
cerebrovascular accident
Term
EEG
Definition
electroencephalography
Term
HA
Definition
headache
Term
ICP
Definition
intracranial pressure
Term
MS
Definition
multiple sclerosis
Term
PNS
Definition
peripheral nervous system
Term
SCI
Definition
spinal cord injury
Term
TIA
Definition
transient ischemic attack
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