In skeletal muscle contraction, an increase in ____in the cytosol triggers the crossbridge cycle.

Name: In skeletal muscle contraction, an increase in ____in the cytosol triggers the crossbridge cycle.
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Quizplus · Accepted Answer

An increase in calcium ions (Ca2+) in the cytosol is the trigger for the crossbridge cycle in skeletal muscle contraction. The choice "B) Ca²⁺" seems to be a typographical or encoding error, but it implies calcium (Ca), which is the correct trigger.

In Skeletal Muscle Contraction, an Increase in ____In the Cytosol