Question

All or none law is not applicable for?

• A. Single skeletal muscle fibre
• B. Single smooth muscle fibre
• C. Whole skeletal muscle
• D. Whole cardiac muscle

Answer 1

The correct option is A Single skeletal muscle fibre

The all or none law states that the strength of the stimuli will not decide the reaction of the muscle fibre. f the stimulus is more than a certain threshold they will fire. Either there will be a full response or there will be no response at all.

As we know that the stimulus works by stimulating the action potential in the fivers. The action potential is always full and thus the response will be there if the threshold is crossed.

We now that the skeletal muscle are the ones that are in control of the conscious mind and the stimuli can affect them so this is applicable for the voluntary muscles.

So, the correct option is 'Single skeletal muscle fibre'