Question

when a muscle is unable to respond to stimuli temporarily, it is in which of the following periods?
latent period
relaxation period
fatigue period
refractory period

Explanation:

The refractory period is a time when a muscle (or nerve) cannot respond to stimuli. The latent period is the time between stimulus and response start. The relaxation period is when muscle relaxes after contraction. Fatigue is a more long - term inability due to overuse (not a temporary unresponsiveness like the refractory period).

Answer:

refractory period