BIOLOGICAL BASES OF BEHAVIOR
THE NERVOUS AND ENDOCRINE SYSTEMS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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congenital disorder affecting involuntary activities
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viral disease that may affect motor functions
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genetic malfunction of the cerebrum resulting in paralysis
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form of cancer that affects the brain
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Detailed explanation-1: -Poliomyelitis, often termed “polio, ” is an acute infectious disease caused by an enterovirus which damages the anterior horn cells of the spinal cord and brainstem. Progress to lower motor neurone cell death leads to disruption of motor units and subsequent muscle weakness or complete paralysis.
Detailed explanation-2: -Poliomyelitis is a disease of the lower motor neurons that affects the gray matter of the spinal cord, specifically the yen-tral horns. We report the MR imaging appearance of the cervi-cal spinal cord in a patient with this now uncommon disease.
Detailed explanation-3: -A polio infection often damages or destroys many of these motor neurons. Because there are fewer motor neurons, the remaining neurons sprout new fibers and grow bigger. This promotes recovery of the use of your muscles, but it also may stress the nerve cell body to nourish the additional fibers.
Detailed explanation-4: -Acute poliomyelitis is a disease of the anterior horn motor neurons of the spinal cord and brain stem caused by poliovirus. Flaccid asymmetrical weakness and muscle atrophy are the hallmarks of its clinical manifestations, due to loss of motor neurons and denervation of their associated skeletal muscles.