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LOM Ch. 10

the nervous system

Epilepsy chronic brain disorder characterized by recurrent seizure activity
Meningitis inflammation of the meninges, caused by bacteria or a virus
Bell's Palsy paralysis of one side of the face, usually caused by a virus
Dementia mental decline and deterioration
Synapse space through which a nerve impulse is transmitted form one neuron to another, or from a neuron to a cell
-encephal/o brain
kines/o movement
mening/o membranes, meninges
neur/o nerve
my/o muscle
vag/o vagus nerve(10th cranial nerve)
radicul/o nerve root (of spinal nerves)
tax/o order, coordination
myel/o spinal cord(means bone marrow in other contexts)
esthesi/o feeling , nervous sensation
Axon microscopic fiber that carries the nervous impulse along a nerve cell
dendrite microscopic branching fiber of a nerve cell that is the first part to receive the nervous impulse
-algesia excessive sensitivity to pain
-paresis weakness
-phasia speech
-ptosis droop, sag, prolapse
-sclerosis hardening
-plegia paralysis
-sthenia strength
-praxia action
Aneurism enlarged, weakened area in an arterial wall, which may rupture leading to CVA(stroke)
Embolus a mass(clot) of material travels through the bloodstream and suddenly blocks a vessel
Acetylcholine neurotransmitter chemical released at the ends(synapses) of nerve cells
Astrocyte a type of glial cell that transports water and salts from capillaries
Nerve macroscopic cordlike collection of fibers(axons and dendrites) that carry electrical impulses
Multiple sclerosis (MS) destruction of the myelin sheath on neurons in the CNS
Myasthenia gravis (MG) autoimmune neuromuscular disorder characterized by weakness of voluntary muscles
syncop/o to cut of, cut short
Aura peculiar sensation before onset of a seizure
Alzheimer disease (AD) brain disorder marked by gradual and progressive mental deterioration with personality changes and difficulty with daily tasks
Herpes zoster (shingles) viral infection affecting peripheral nerves
Spina bifida congenital defects in the lumbar spinal column caused by imperfect union of vertebral parts(neural tube defects)
Parkinson disease degeneration of neurons in the basal ganglia, characterized by tremors, weakness of muscles, and slow movement
Sciatic nerve
Cerebrovascular accident (CVA) stroke, disruption in the normal blood supply to the brain
lept/o thin, slender
thec/o sheath(refers to meninges)
-lepsy seizure
Amyotrophic lateral sclerosis (ALS) degenerative disorder of motor neurons in the spinal cord and brainstem
Positron emission tomography (PET) scan computerized radiologic technique using radioactive glucose to image the metabolic activity of cells
Electroencephalography (EEG) recording of electrical activity of the brain
Lumbar puncture (LP) spinal fluid is drawn by needle to diagnose or relieve pressure on the brain (taken from between two lumbar vertebrae
Blood-brain barrier (BBB) blood vessels(capillaries) that selectively let certain substances enter the brain tissue and keep other substances out
Central nervous system (CNS) consists of the brain and the spinal cord
Cerebrospinal fluid (CSF) protects the brain and spinal cord from shock by acting like a cushion
Transient ischemic attack (TIA) temporary interference with the blood supply to the brain
Gait manner of walking
Peripheral Nervous System(PNS) cranial nerves, spinal nerves,
Afferent carry messages toward the brain; sensory nerves
Efferent carry messages from the brain to the muscles; motor nerves
Plexus large network of nerves in the PNS
tic involuntary movement of a small group of muscles, as of the face, characteristic of Tourette syndrome
Tourette syndrome involuntary, spasmodic, twitching movements, uncontrollable vocal sounds and inappropriate words cause is unknown
Created by: Marshaherrera



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