ANATOMY

Detailed explanation-1: -The outermost connective tissue sheath surrounding the entire muscle is known as epimysium. The connective tissue sheath covering each fasciculus is known as perimysium, and the innermost sheath surrounding individual muscle fiber is known as endomysium.

Detailed explanation-2: -The endomysium is a delicate network of connective tissue, which surrounds individual muscle fibres and contains the vessels and nerves that supply the muscle fibres as well as the proteoglycan matrix for ion flux and metabolic exchange.

Detailed explanation-3: -Each muscle is surrounded by a connective tissue sheath called the epimysium.

Detailed explanation-4: -Each individual muscle is surrounded by epimysial connective tissue and within the muscle there are two distinct extracellular matrix (ECM) structures, the perimysium and endomysium. Together, these three ECM structures make up the intramuscular connective tissue (IMCT).

Detailed explanation-5: -The endomysium, meaning within the muscle, is a wispy layer of areolar connective tissue that ensheaths each individual muscle fiber, or muscle cell. It also contains capillaries and nerves.