Deterioration in the myelin sheaths of motor axons to
the lower leg would be expected to
a. remove the restraints to ion movement and speed
up impulse transmission.
b. cause immobility of the leg due to cessation of
impulses to leg muscles.
c. slow the rate of transmission and cause reduced
motor control.
d. have little effect because the sheaths are for
insulation only.
e. do none of these.
Answer: c
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