NEET BIOLOGY

Detailed explanation-1: -At a cellular level, smooth muscle functions as an involuntary non-striated muscle. Smooth muscle contains thick and thin filaments that do not arrange into sarcomeres, resulting in a non-striated pattern.

Detailed explanation-2: -Smooth muscle fibers are located in walls of hollow visceral organs (such as the liver, pancreas, and intestines), except the heart, appear spindle-shaped, and are also under involuntary control.

Detailed explanation-3: -Answer and Explanation: The statement that smooth muscle cells are larger than skeletal muscle cells is False.

Detailed explanation-4: -Smooth, or involuntary, muscle is also made of fibers, but this type of muscle looks smooth, not striated. We can’t consciously control our smooth muscles; rather, they’re controlled by the nervous system automatically (which is why they’re also called involuntary).

Detailed explanation-5: -They are called voluntary muscles because their action is under the control of the somatic nervous system and their movement can be controlled by us (Eg: Bicep muscles), unlike as in the case of involuntary muscles (Eg: cardiac muscles).