ANATOMY

Detailed explanation-1: -Hence, the organization of muscle tissue from the largest to the smallest is a muscle, fascicle, myofibril, and myofilaments.

Detailed explanation-2: -The sarcomere is the smallest functional unit of a skeletal muscle fiber and is a highly organized arrangement of contractile, regulatory, and structural proteins. It is the shortening of these individual sarcomeres that lead to the contraction of individual skeletal muscle fibers (and ultimately the whole muscle).

Detailed explanation-3: -Type 1 muscle fibers are the smallest of the 3, while Type 2x muscle fibers are the largest. Muscle fibers naturally fire in the order of smallest to largest. No matter how high the intensity, how much power, force, or speed is required for a movement, type 1 fibers will fire first.

Detailed explanation-4: -Sarcomere is the smallest contractile unit in a muscle fibre which is limited by the area between.