The heart is made of ____ muscle, which ____.
A)striated/pumps blood
B)cardiac/contributes to breathing
C)striated/contributes to breathing
D)cardiac/pumps blood

Question

Quizplus · Accepted Answer

The correct answer is D because the heart is made of cardiac muscle, which pumps blood. Striated muscle is only found in skeletal muscle and contributes to voluntary movement, while smooth muscle is found in other organs and helps with involuntary movement such as digestion. Therefore, B and C are not correct choices.

The Heart Is Made of ____ Muscle, Which ____

The Heart Is Made of Muscle, Which