Question

where are smooth muscles located?
they are only in the heart.
they are in the hollow parts of our bodies.
they are attached to our bones.

Explanation:

• "They are only in the heart" is incorrect because heart muscle is cardiac muscle, not smooth muscle.
• "They are attached to our bones" is incorrect as skeletal muscles are attached to bones.
• Smooth muscles are found in the walls of hollow organs (like the digestive tract, blood vessels, etc.), so "They are in the hollow parts of our bodies" is correct.

Answer:

They are in the hollow parts of our bodies.