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Skeletal Muscle Structure

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Background Information

skeletal muscle is an organ composed mainly of muscle fibers (cells), blood vessels, nerves, and three layers of connective tissue. The muscle fibers are the contractile units of a muscle, and the blood vessels and nerves sustain and regulate the activity of the fibers. The collagen fibers in the connective tissues bind the muscle components together and maintain their structural organization.

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Structure Identification

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References and Attributions

Cleveland Clinic – “Skeletal Muscle.”

Frontiers in Pathology – “The Structure and Role of Intramuscular Connective Tissue in Muscle Function.”

NIH: National Library of Medicine – “Anatomy, Fascia Layers.”

NIH: National Library of Medicine – “Anatomy of Skeletal Muscle and Its Vascular Supply.”

NIH: National Library of Medicine – “Anatomy, Tendons.”

NIH: National Library of Medicine – “Connecting muscles to tendons: tendons and musculoskeletal development in flies and vertebrates.”

NIH: National Library of Medicine – “The development of the myotendinous junction. A review.”

NIH: National Library of Medicine – “The Structure and Role of Intramuscular Connective Tissue in Muscle Function.”

NIH: National Library of Medicine – “The Myotendinous Junction—A Vulnerable Companion in Sports. A Narrative Review.”

Science Direct – “Muscle Fascicle.”

Science Direct – “Perimysium.”