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prohojiy [21]
3 years ago
6

In twitch summation, a) the muscle fiber is stimulated again before the filaments have completely returned to their resting posi

tion b) stronger muscle contractions occur but stronger action potentials do not uoccur c) a second action potential occurs in the muscle fiber, before the first action potential is finished d) both a and b are correct e) all of the above are correct
Biology
1 answer:
Ainat [17]3 years ago
7 0

Answer:

the correct answer is E

Explanation:

In the sum of contractions, the action potentials are sent more frequently but not with greater intensity, this is because in the motor plate the neurotransmitters do not cease and continue to bind to their receptors, promoting the stimulation of muscle fiber, once the muscle fiber contracts, before returning to its depolarized or resting moment a new contraction begins, some researchers maintain that these contractions are stronger but that the action potential that stimulates them does not refer to more power.

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