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nerve system

CNS

TermDefinition
nerve large bundle of axons wrapped in connective tissue
axon a long single projection that transmits impulses from the cell body
multiple sclerosis a progressive degenerative disease of the myelin sheath
epilepsy a recurrent disorder of cerebral functions characterized by seizures
lethargy abnormal inactivity or lack of response to normal stimuli
dysrhythmia abnormal rhythm
coma abnormally deep unconsciousness with absence of voluntary response to stimuli
anencephaly abnormally small head
herpes zoster acute inflammatory eruption of painful vesicles(shingles)
convulsion a sudden and violent contraction of one or more muscles
dendrites branching cytoplasmic projections
syncope brief loss of consciousness
dementia broad term that refers to cognitive deficit
efferent carry or move away from a central structure
afferent carry or move toward a central structure
neurotransmitter chemical substances that facilitate the transmission of impulses across synapses
Tay-sach disease characterized by progressive mental challenges
autonomic nervous system conveys impulses to glands, smooth muscles, and cardiac muscles
spinal cord conveys sensory impulses to the brain and motor impulses away from the brain
hypnotics depress central nervous system functions
bulimia nervosa eating disorder characterized by binging and purging
hyperkinesia excessive movement
ganglionectomy excision of a ganglion
meningocele form of spina bifida in which the spinal cord develops properly but the meninges protrude
occulta form of spina bifida in which one or more vertebrae are malformed
agnosia inability to comprehend auditory, visual, spatial, olfactory or other sensations
aphasia inability to speak
craniotomy incision into the skull
encephalitis inflammation of the skull
concussion injury to the brain, occasionally with transient loss of consciousness
pia mater innermost membrane covering the brain and spinal cord
tremor involuntary tremble or shake
ataxia lack of muscle coordination
cerebrum largest and uppermost portion of the brains, sensory, emotions aspects of behaviour and memory
psychosis major emotional disorder
arachnoid membrane middle layer covering of the brain
myelomeningocele most severe form of spina bifida
lumbar puncture needle puncture of the spinal cavity
neurosis nonpsychotic mental illness
idiopathic occuring without a known cause
dura mater outermost membrane covering the brain and spinal cord
myelalgia pain in the spinal cord
dystrophy poor development
electroencephalogram recording of electrical activity in the brain
cerebellum second largest part of the brain, refines muscular movement
trephination cuts circular opening into skull
nerve conduction velocity test that measures speed at which impulses travel through a nerve
neuron the functional cell of the nervous system
asthenia weakness, debility, or loss of strength
anesthesia without feeling, loss of sensation
Created by: sombum