When a muscle is unable to respond to stimuli temporarily, it is in which of the following periods? Naim 23:00 Muscles and Muscle Tissue When a muscle is unable to respond to stimuli temporarily, it is in which of the following periods? A) relaxation period B) refractory period C) latent period D) fatigue period Answer: B Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+