Sustained muscle contraction without relaxation between successive stimuli is called
A) tonus.
B) fused tetanus.
C) an all-or-none response.
D) fatigue.
E) a spasm.

Question

Quizplus · Accepted Answer

Sustained muscle contraction without relaxation between successive stimuli is characteristic of fused tetanus. In contrast, tonus refers to a constant, low-level contraction in a muscle at rest, an all-or-none response describes the phenomenon in which muscle fibers either contract maximally or not at all when stimulated, fatigue refers to a decline in muscle performance over time or use, and a spasm refers to an involuntary and often sudden, temporary contraction of a muscle or group of muscles.

Sustained Muscle Contraction Without Relaxation Between Successive Stimuli Is Called