Which muscle type is found in the walls of internal organs and is involuntary?
A
Smooth muscle
B
Skeletal muscle
C
Cardiac muscle
D
Striated muscle
Correct Answer: Option A — Smooth muscle
Explanation:
Smooth muscle lines the walls of internal organs such as the stomach, intestines, and blood vessels. Unlike skeletal muscle, it contracts in...
Smooth muscle lines the walls of internal organs such as the stomach, intestines, and blood vessels. Unlike skeletal muscle, it contracts involuntarily and rhythmically, controlling processes like digestion and blood vessel diameter regulation.