Practical Nursing PNP301 Lecture Notes - Lecture 3: Basal Ganglia, Urinary Retention, Axon
26 Feb 2018
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Document Summary
Chronic, progressive, degenerative disorder of the cns characterized by. Who it affects: usually affects young to middle- aged adults, with onset between 15 and 50 years of age, women > men. Chronic inflammation and demyelination of nerve fibers with scar formation in the cns: without myelin, nerve impulses slow down, once axons are destroyed, impulses are totally blocked. Initially the myelin sheaths of the neurons in the brain and spinal cord are attacked, but the nerve fiber is not affected myelin can regenerate, and symptoms disappear, resulting in a remission. Vague symptoms occur intermittently over months and years: ms may not be diagnosed until long after the onset of the first symptom. Motor manifestations: weakness or paralysis of limbs, trunk, and head. Lack of coordination in articulating speech: dysphagia. Lack of voluntary coordination of muscle movements that includes gait abnormality. Spastic bladder: small capacity for urine results in incontinence. Flaccid bladder: large capacity for urine and no sensation to urinate.
