Question

if one nerve arrives at a muscle fiber so soon that the fiber has only partially relaxed from the previous twitch. The most likely result will be ___

Answer 1

If one nerve arrives at a muscle fiber so soon that the fiber has only partially relaxed from the previous twitch, the most likely result will be **tetanus**. More specifically, if the nerve impulses arrive rapidly enough, it can lead to **incomplete tetanus** (or **unfused tetanus**) where the muscle fibers are stimulated before they completely relax from the previous contraction, resulting in a sustained, stronger contraction. If the stimulation continues at an even higher frequency, it can lead to **complete tetanus**, where the muscle fiber achieves a steady and maximal contraction without any relaxation between stimuli.