Question

which muscle type is found in the walls of internal organs?
skeletal
cardiac
smooth/visceral
porous

Explanation:

Skeletal muscle is attached to bones and is under voluntary control. Cardiac muscle is found only in the heart. Smooth (visceral) muscle is involuntary and is located in the walls of internal organs like the stomach, intestines, and blood vessels. Porous is not a muscle type.

Answer:

smooth/visceral