Answer:
Crossbridges form and break at the same time, but cycling occurs rapidly so the muscle does not have time to relax.
Explanation:
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The shortening of muscle length in order to complete the action is called contraction.
The muscle contraction is smooth because the muscle will relax first after the contraction for the next cycle.
There are two types of action in a muscle that is:-
In the question, the muscle has some light and dark bands which overlap each other in the contraction periods. These bands can not overlap each other as the muscle can not do other actions until the previous action has been done. The muscle will relax first and bands with removed from each other and then it repeats the cycle.
For more information, refer to the link:-
https://brainly.com/question/3523174
