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21 terms

NBE PATHOLOGY Chapter 13 Diseases of the Nervous System

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concussion
an injury to your head; a brain bruise
contusion
an injury that doesn't break the skin but results in some discoloration
convulsions
Involuntary muscle contractions that may alternate between contraction and relaxation of muscles.
dementia
a slowly progressive decline in mental abilities, including memory, thinking, and judgment, that is often accompanied by personality changes
encephalitis
inflammation of the brain usually caused by a virus
epilepsy
a disorder of the central nervous system characterized by loss of consciousness and convulsions
meningitis
infectious disease characterized by inflammation of the meninges (the tissues that surround the brain or spinal cord) usually caused by a bacterial infection
seizures
a neurological dysfunction caused by a sudden episode of uncontrolled electrical activity in the brain that may result in the involuntary, uncontrolled muscle contractions. usually characterized by LOC and involuntary spasmodic muscle twitching.
sundowning
signs, symptoms, and behaviors of Alzheimers Disease increase during hours of darkness
demyelization
The loss of the fatty tissue that surrounds the nerves
myelitis
inflammation of spinal cord or bone marrow
Extradural (epidural)
Loss of blood between the dural matter and the cranium
Subdural
bleeding between the dura mater and the arachnoid membrane of the meninges
Subarachnoid
bleeding between the arachnoid membrane and the pia mater
epidural
Bleeding that occurs between the dura mater and the skull
Parkinson's disease
a progressive disease that destroys brain cells and is identified by muscular tremors, slowing of movement, and partial facial paralysis
Alzheimer's disease
an irreversible, progressive brain disorder, characterized by the deterioration of memory, language, and eventually, physical functioning
hydrocephalus
an abnormal condition in which cerebrospinal fluid collects in the ventricles of the brain
Neuritis
inflammation of a nerve accompanied by pain and sometimes loss of function
Rabies
an acute viral disease of the nervous system of warm-blooded animals (usually transmitted by the bite of a rabid animal)
Multiple Sclerosis
A chronic disease of the central nervous system marked by damage to the myelin sheath. Plaques occur in the brain and spinal cord causing tremor, weakness, incoordination, paresthesia, and disturbances in vision and speech