MUSCLE PHYSIOLOGY

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, 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.

Detailed explanation-3: -The endomysium is the key element that separates single muscle fibres from one another. It allows their autonomous gliding during muscle contraction. The endomysium is also a highly deformable tissue that adapts itself to the changes of volume that occur during the muscle fibre contraction.

Detailed explanation-4: -Each muscle fibre is surrounded by loose connective tissue, and these contain capillaries and nerve fibres. This connective tissue covering is known as the endomysium (endon-greek for within).