The heart has to be able to regulate its contractions. Heart muscle, unlike skeletal muscle, cannot go into a tetanus. This is because
A) the heart muscle has to be able to consistently contract and pump blood in a controlled fashion.
B) heart muscle is not resistant to fatigue.
C) heart muscle contracts faster than skeletal muscle.
D) heart muscle cannot use glycogen.
E) the heart uses aerobic metabolism.

Question

Quizplus · Accepted Answer

The heart has to consistently contract in a controlled manner to pump blood effectively throughout the body. Going into a tetanus, where the heart muscle contracts and cannot relax, would result in inefficient pumping and potential heart failure.

The Heart Has to Be Able to Regulate Its Contractions