<prompt> Thickening of axon leads to -Increased speed of conductionDecreased speed of conductionIncreased absolute refractory periodUnmyelination  <response>: Ans. is a i.e., Increased speed of conduction o Thickness of nerve fiber Axon has linear relation with velocity speed of conduction.Factors affecting nerve conduction Propagation of APIo There are many factors that affect the nerve conduction. Propagation of action potential nerve conduction is favoured byQ:-Low axoplasmic resistance RiQLow external longitudinal resistance RoHigh membrane resistance RmQLow membrane capacitance Cm QHigh space constantHigh time constantThick large nerve - Linear relation with conduction QMyelination of nerv e Q 