Biology, 25.07.2019 20:50, alexamorantess

Poliomyelitis is caused by a virus that spreads easily in human populations. most people with polio infections show no symptoms of disease. however, in a small percentage of victims, the virus enters the central nervous system and attacks the motor neurons of the spinal cord. motor neurons are an example of what type or class of neuron

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Poliomyelitis is caused by a virus that spreads easily in human populations. most people with polio...