Why does your heart never tire of constantly beating to pump blood throughout your body?

a. it belongs to the skeletal muscle group, which means it moves involuntarily.
b. it consists of fibers that move voluntarily, so you can train these fibers to increase their endurance level.
c. it has a high level of muscular strength due to extensive weight training.
d. it consists of cardiac muscle tissues, which means it moves involuntarily.

The correct answer is D. It consists of cardiac muscle tissues, which means it moves involuntarily.

The heart is termed as muscular organ which pumps blood in different animals through the vessels of blood which are found in the circulatory system.

Blood provides the body with nutrients and oxygen and removes the metabolic wastes.

Heart beats at 72 beats per minute. It is during exercise that the heart may increase its beats and when it is resting it lowers which is termed as normal and good for the health of the heart.

yes, it is pretty much the same thing, which is cool. : )

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