Which of the following is characteristic of cardiac muscle?

Question

Quizplus · Accepted Answer

Cardiac muscle is found only in the heart and has striations similar to skeletal muscle, but it contracts under the control of its pacemaker cells, which give it rhythmic contractions. Therefore, option D is the correct choice. Option A is incorrect because cardiac muscle is not found in blood vessels. Option B is incorrect because cardiac muscle has striations like skeletal muscle, whereas smooth muscle does not. Option C is incorrect because cardiac muscle is striated.

Which of the Following Is Characteristic of Cardiac Muscle