Cardiac muscle fibers need outside nervous stimulation in order to contract.
Cardiac muscle fibers do not need outside nervous stimulation to contract;skeletal muscle does.

Question

Quizplus · Accepted Answer

Cardiac muscle fibers can actually contract spontaneously without nervous stimulation, a property known as autorhythmicity. However, nervous stimulation can modulate the frequency and strength of the contractions. In contrast, skeletal muscle fibers require nervous stimulation in order to contract.

Cardiac Muscle Fibers Need Outside Nervous Stimulation in Order to Contract