MICROANATOMY

Detailed explanation-1: -Fascia, connective tissue outside the epimysium, surrounds and separates the muscles. Portions of the epimysium project inward to divide the muscle into compartments.

Detailed explanation-2: -Blood vessels and nerve fibres enter the muscle via this connective tissue network. The epimysium blends with the connective tissue of tendon if the muscle is inserted onto bone via tendon, but if inserted directly onto bone then the epimysium blends with the periosteum of the bone (Fig. 6.4).

Detailed explanation-3: -The epimysium is a thick connective tissue layer that is composed of coarse collagen fibers in a proteoglycan matrix. The epimysium surrounds the entire muscle and defines its volume. The arrangement of collagen fibers in the epimysium varies between muscles of different shapes and functions.

Detailed explanation-4: -Fascicles are bundled together by epimysium connective tissue. Muscle fascicles typically only contain one type of muscle cell (either type I fibres or type II fibres), but can contain a mixture of both types.

Detailed explanation-5: -A fascia is a structure of connective tissue that surrounds muscles, groups of muscles, blood vessels, and nerves, binding some structures together, while permitting others to slide smoothly over each other.