MUSCLE PHYSIOLOGY

Detailed explanation-1: -Skeletal muscle fiber is referred to as a skeletal muscle cell. Inside each of these fibers are present long cylindrical structures called myofibrils . Many oval nuclei are found just beneath the plasma membrane (known as sarcolemma) of the muscle fiber.

Detailed explanation-2: -Skeletal muscle fibers are cylindrical, multinucleated, striated, and under voluntary control.

Detailed explanation-3: -Within each muscle fiber are myofibrils-long cylindrical structures that lie parallel to the muscle fiber.

Detailed explanation-4: -Skeletal muscle is voluntary and responds to conscious stimuli. The cells are striated and multinucleated appearing as long, unbranched cylinders. Cardiac muscle is involuntary and found only in the heart. Each cell is striated with a single nucleus and they attach to one another to form long fibers.