Question

true or false question
true or false: in cardiac muscle, once calcium has bound to troponin, interactions between myosin and actin occur just like in skeletal muscle.
o true
o false

Explanation:

In both cardiac and skeletal muscle, when calcium binds to troponin, it causes a conformational change in the troponin - tropomyosin complex. This exposes the binding sites on actin for myosin, allowing myosin - actin interactions to occur for muscle contraction.

Answer:

True