GENERAL HISTOLOGY

Detailed explanation-1: -Smooth muscle is also called visceral, non-striated, non-striped or involuntary muscle. Skeletal muscle is called striped muscle or striated muscle or voluntary muscle. Smooth muscles are found in the internal i.e. visceral organs and hence they are called visceral muscles.

Detailed explanation-2: -smooth muscle, also called involuntary muscle, muscle that shows no cross stripes under microscopic magnification. It consists of narrow spindle-shaped cells with a single, centrally located nucleus.

Detailed explanation-3: -Assertion: Visceral muscles are also called smooth muscles or non-striated muscles. Reason: The visceral muscles do not exhibit any striations.

Detailed explanation-4: -Single-unit muscle has its muscle fibers joined by gap junctions so that the muscle contracts as a single unit. This type of smooth muscle is found in the walls of all visceral organs except the heart (which has cardiac muscle in its walls), and so it is commonly called visceral muscle.