A: Muscle tetanus is the phenomenon of sustai | vedclass

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(C) : Tetanus in muscle physiology refers to a state of sustained contraction where the muscle fiber does not relax between stimuli because the freque

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Assertion is correct,but Reason is incorrect.

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(C) : Tetanus in muscle physiology refers to a state of sustained contraction where the muscle fiber does not relax between stimuli because the frequency of nerve impulses is very high. This is a correct statement.$R$: Many of our daily activities,such as holding a book,require the muscle to maintain a constant state of tension (tonus) rather than a full tetanic contraction. Tetanic contraction is a pathological or experimental state of maximal sustained contraction,whereas holding a book involves sustained muscle tone (tonus) maintained by asynchronous motor unit recruitment. Therefore,the Reason is incorrect.

$A$: Muscle tetanus is the phenomenon of sustained contraction of a muscle due to a succession of nerve impulses/stimuli being received by it.
$R$: Many of our daily activities are due to tetanic contraction of muscles,such as holding a book.

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$A$: Muscle tetanus is the phenomenon of sustained contraction of a muscle due to a succession of nerve impulses/stimuli being received by it.$R$: Many of our daily activities are due to tetanic contraction of muscles,such as holding a book.