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He Nervous System Essay

699 words - 3 pages

Chapter 8 The Nervous System

1. Terms
1. Encephalitis—The inflammation of the brain or spinal coed tissue largely caused by a virus that enters the CNS when the person experiences a viral disease such as measles or mumps or through the bite of a mosquito or tick.
2. Hydrocephalus—An abnormal increase of cerebrospinal fluid in the brain that causes the ventricles of the brain to dialate, resulting in an increased head circumference in the infant with open fontanel(s); a congenital disorder.
3. Neuralgia—Severe, sharp spasmlike pain tht extends along the course of one or more nerves.
4. Narcolepsy—Uncontrolled, sudden attacks of sleep.
5. Dysphagia—difficult speech.
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8. Grand mal seizure—an epileptic seizure characterized by a sudden loss of consciousness and by generalized involuntary muscular contraction, vacillating between rigid body extension and an alternating contracting and relaxing of muscles.
9. Petit mal seizure—a small seizure in which there is a sudden temporary loss of consciousness lasting only a few seconds; also known as an absence seizure.
10. Migraine headache—a recurring, pulsating, vascular headache usually developing on one side of the head. It is characterized by a slow onset that may be preceeded by an aura, during which a sensory disturbance occurs such as confusion or some visual interference (e.g., flashing lights).
11. Meningitis—a serious bacterial infection of the meninges—the covering of the brain and spinal cord—that can have residual debilitating effects or even a fatal outcome if not diagnosed and treated promptly with appropriate antibiotic therapy.
12. Multiple Sclerosis (MS)—a degenerative inflammatory disease of the CNS attacking the myelin sheath in the spinal cord and brain, leaving it sclerosed (hardened) or scarred and interrupting the flow of nerve impulses.
13. Parkinson’s Disease—A degenerative, slowly progressive deterioration of...

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