Conduction in which type of nerve fibres is blocked maximally by pressure: (A) C fibres, (B) A- alpha fibres, (C) A - Beta, (D) A- gamma
Answer is B. The velocity of conduction through a nerve fiber is directly proportional to the thickness of the axon.
Thickest and fastest is A fibers. Among A fibers, the thickest is Aα. Hence the maximum affected by pressure will be Aα.