A totality skeletal muscle is thought about an organ of the muscular system. Each body organ or muscle consists of bones muscle tissue, connective tissue, nerve tissue, and also blood or vascular tissue.

You are watching: The whole muscle is composed of muscle cells (fibers) grouped in bundles called

Skeletal muscles vary considerably in size, shape, and arrangement that fibers. They selection from exceptionally tiny strands such as the stapedium muscle the the middle ear to large masses such together the muscles of the thigh. Some skeletal muscle are large in shape and also some narrow. In some muscles the fibers room parallel to the lengthy axis of the muscle; in some they converge to a small attachment; and in part they space oblique.


Each skeleton muscle fiber is a single cylindrical muscle cell. An separation, personal, instance skeletal muscle might be consisted of of hundreds, or also thousands, the muscle fibers bundled together and wrapped in a connective organization covering. Every muscle is surrounded by a connective organization sheath called the epimysium. Fascia, connective tissue exterior the epimysium, surrounds and also separates the muscles. Sections of the epimysium project inward to division the muscle into compartments. Each compartment has a bundle that muscle fibers. Every bundle of muscle fiber is called a fasciculus and is surrounding by a layer of connective tissue referred to as the perimysium. Within the fasciculus, each individual muscle cell, referred to as a muscle fiber, is surrounded by connective tissue dubbed the endomysium.

Skeletal muscle cell (fibers), like other body cells, space soft and fragile. The connective tissue spanning furnish support and protection for the vulnerable cells and permit them to resist the pressures of contraction. The coverings also provide pathways because that the passage of blood vessels and also nerves.

Commonly, the epimysium, perimysium, and endomysium extend beyond the fleshy component of the muscle, the belly or gaster, to form a thick ropelike tendon or a broad, flat sheet-like aponeurosis. The tendon and also aponeurosis kind indirect attachments from muscle to the periosteum of skeleton or to the connective organization of other muscles. Commonly a muscle spans a joint and also is attached come bones by tendons at both ends. Among the skeleton remains relatively fixed or secure while the other end moves together a result of muscle contraction.

See more: What Does A Dagger Tattoo Mean, Dagger Tattoo Meanings

Skeletal muscles have an numerous supply that blood vessels and also nerves. This is directly related come the primary role of bones muscle, contraction. Before a bones muscle fiber can contract, it needs to receive an advertise from a nerve cell. Generally, an artery and at the very least one vein accompany each nerve the penetrates the epimysium that a skeletal muscle. Branches of the nerve and also blood vessels follow the connective tissue contents of the muscle that a nerve cell and also with one or much more minute blood vessels called capillaries.