MICROANATOMY

Detailed explanation-1: -Each compartment contains a bundle of muscle fibers. Each bundle of muscle fiber is called a fasciculus and is surrounded by a layer of connective tissue called the perimysium. Within the fasciculus, each individual muscle cell, called a muscle fiber, is surrounded by connective tissue called the endomysium.

Detailed explanation-2: -Skeletal muscle fiber Sarcolemma-membrane surrounding the muscle fiber. Transverse tubules-portion of the sarcoplasmic reticulum that stores and releases calcium during contraction and relaxation. Myoneural junction-where motor nerve endings terminate on the sarcolemma. Sarcoplasm-cytoplasm of muscle fibers.

Detailed explanation-3: -Myofibril vs Muscle Fiber Myofibril is a basic rod-like unit of a muscle fiber. Muscle Fiber is a tubular shaped cell of the muscle. Myofibril is composed of two types of myofilaments called thin and thick filaments. Muscle Fiber is composed of numerous myofibrils.

Detailed explanation-4: -Muscle fibers consist of a single muscle cell. They help to control the physical forces within the body. When grouped together, they can facilitate organized movement of your limbs and tissues. There are several types of muscle fiber, each with different characteristics.