Nervous System Flashcards
affect
emotional state or mood
aura
subjective sensation that occurs prior to and signals the onset of a migraine headache or a seizure
bradykinesia
extreme slowness in movement
Brudzinski sign
Pt response in which neck flexion causes flexion of the hips when the pt is lying down in a supine position
central nervous system
nerve tissue that comprises the brain and spinal cord
cerebral concussion
brief loss of consciousness or brief episode of disorientation or confusion following a head injury
cerebral contussion
injury involving bruising of brain tissue
contrecoup
rapid acceleration-deceleration injury of the brain that bruises of the front and back of the brain
corpuscallosotomy
surgical procedure in which the central part of the brain is partially divided in two
embolic
caused by a moving mass in a blood vessel (embolus)
fasciculation
visible involuntary muscle twitching
fibrillation
spontaneous muscle contraction or quivering
homeostasis
state of equilibrium in the body
Kernig sign
reflexive hamstring contraction and pain when attempting to extend the leg after flexing the hip
motor nerves
nerves involved in movement
myelin
layer of phospholipids and protein that forms the myelin sheath of neurons and acts as electrical insulation
neuron
nerve cell
neurotransmitter
chemical that plays an important role in the nerve impulse transmission
nuchal rigidity
condition that involves pain ad stiffness of the neck and a resulting reluctance to flex the head forward
paresthesia
abnormal sensation
peripheral nervous system
portion of the nervous system outside of the CNS that conveys sensory and motor impulses
sensory nerves
nerves that convey sensory information
spinal fusion
surgical immobilization of adjacent vertebrae
thrombotic
caused by a blood clot
transection
cutting
cerebr/o
encephal/o
brain
cerebrovascular
pertaining to the brain and vessels
encephalocele
herniation of the brain
gli/o
glue or gluelike
glioma
gluelike tumor
mening/o
meninges
meningitis
meningi/o
inflammation of the meninges
meningioma
tumor of the meninges
myel/o
spinal cord; bone marrow
myelography
process of recording activity in the spinal cord or bone marrow
neur/o
nerve
neurocytoma
tumor of the nerve cells
spin/o
spine
spinal
pertaining to the spine
a-
an-
without
aphasia
absence of speech
anesthesia
absence of sensation
dys-
pain or difficult
dysphagia
painful or difficult swallowing
hemi-
half
hemiplegia
paralysis of half of the body
micro
small
microcephaly
small head
poly-
many, much
polyneuritis
inflammation of many nerves
para-
beside or near; two
paraplegia
paralysis of two legs
quadri-
four
quadriplegia
paralysis of four legs
-al
pertaining to
-algia
pain
neuralgia
nerve pain
-cele
herniation
meningomylocele
herniation of the meninges and spinal cord
-eal
pertaining to
meningeal
pertaining to the meninges
-esthesia
sensation
hyperesthesia
increased sensation
-logist
specialist in the study of
neurologist
specialist in the study of nerves
-logy
study of
neurology
study of nerves
-paresis
slight or partial paralysis
hemiparesis
slight or partial paralysis of half of the body
-pathy
disease
neurpathy
disease of the nerves
-phagia
swallowing
-phasia
speech
dysphasia
difficult speech
-plegia
paralysis
blepharoplegia
paralysis of the eye or eyes
-ptosis
drooping
blepharoptosis
drooping of the eyelid
-trophy
nourishment or growth
amyotrophic lateral sclerosis
chronically progressive, degenerative neuromuscular disorder that destroys motor neurons of the body; also called Lou Gehrig disease
Bell palsy
disorder of the seventh cranial nerve that causes temporary weakness or paralysis of one side of the face
carpal tunnel syndrome
syndrome that is characterized by pain or numbness of the median nerve in the hand and forearm and caused by nerve compression and inflammation due to cumulative trauma from repetitive motion
encephalitis
disorder that involves inflammation of the brain
encephalomeningitis
disorder that is a combination of encephalitis and meningitis
epilepsy
chronic disorder of the brain marked by recurrent seizures, which are repetitive abnormal electrical discharges within the brain
Huntington chorea
hereditary nervous disorder that leads to bizarre, involuntary movements and dementia
meningitis
infection of the meninges, the spinal cord, and the cerebrospinal fluid, usually caused by an infectious illness
migraine headache
familial disorder marked by episodes of throbbing, severe headache that is commonly unilateral and sometimes disabling
multiple sclerosis
chronic autoimmune disease that affects the CNS causing inflammation and degeneration of the myelin sheath that protects the nerve fibers
Parkinson disease
chronic, degenerative disease of the CNS that results in movement disorders and changes in cognition and mood
peripheral neuropathy
dysfunction of nerves that transmit information to and from the CNS with resulting pain, altered sensation, and muscle weakness
poliomyelitis
inflammation of the spinal cord caused by a virus, possibly resulting in spinal and muscle deformity and paralysis
sciatica
severe pain of the sciatic nerve that radiates from the buttocks to the feet
shingles
unilateral, painful vesicles that appear on the upper body and are caused by the herpes zoster virus
spinal stenosis
disorder that involves narrowing of an area of the spine that puts pressure on the spinal cord and nerve roots
stroke
sudden loss of neurological function due to vascular injury to the brain; also called cerebrovascular accident (CVA) and brain attack
transient ischemic attack
temporary impairment of neurological functioning due to a brief interruption in blood supply to a part of the brain
ALS
amyotrophic lateral sclerosis
CNS
central nervous system
CSF
cerebrospinal fluid
CT
computed tomography
CVA
cerebrovascular accident; also called stroke or brain attack
EEG
eletroencephalography
EMG
electromyogram
ICP
intracranial pressure
LP
lumbar punture
MRI
magnetic resonance imaging
MS
multiple sclerosis
PNS
peripheral nervous system
TIA
transient ischemic attack