Locomotion and Movement Question 2

2. Lack of relaxation between successive stimuli in sustained muscle contraction is known as

(a) Spasm

(b) Fatigue

(c) Tetanus

(d) Tonus

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Answer : c

Hints & Solutions

(c) Sustained contraction with no relaxation phase is called muscle tetanus. A tetanic contraction (also called tetanised state, tetanus, or physiologic tetanus, the latter to differentiate from the disease called tetanus) is a sustained muscle contraction evoked when the motor nerve that innervates a skeletal muscle emits action potentials at a very high rate.



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