Questions: Question 48 (2 points) Saved Which of the following best describes the location of smooth muscle? Mostly in the walls of hollow organs The walls of the heart In skeletal muscles All of the above

The answer is the first one: mostly in the walls of hollow organs.

Explanation for each option:

1. Mostly in the walls of hollow organs: This is correct. Smooth muscle is primarily found in the walls of hollow organs such as the intestines, blood vessels, bladder, and uterus. It helps in involuntary movements like peristalsis in the digestive tract and regulation of blood flow in arteries.

2. The walls of the heart: This is incorrect. The heart is composed of cardiac muscle, not smooth muscle. Cardiac muscle is specialized for the heart's function of pumping blood.

3. In skeletal muscles: This is incorrect. Skeletal muscles are composed of skeletal muscle tissue, which is under voluntary control and is responsible for body movements.

4. All of the above: This is incorrect because smooth muscle is not found in the walls of the heart or in skeletal muscles.

In summary, smooth muscle is primarily located in the walls of hollow organs, where it facilitates involuntary movements and functions.