Epimysium

Epimysium is the outermost layer of connective tissue that surrounds a muscle. It provides structural support and protection to the muscle, and also helps to distribute forces produced by muscle contraction. The epimysium is composed of dense irregular connective tissue, which is strong and resistant to stretching.

Structure

The epimysium is a layer of dense irregular connective tissue which ensheathes the entire muscle. It is composed of collagen fibers, fibroblasts, and fatty cells. The thickness of the epimysium varies depending on the muscle, with larger muscles typically having a thicker epimysium.

Function

The primary function of the epimysium is to provide structural support and protection to the muscle. It helps to distribute forces produced by muscle contraction, and also provides a route for the passage of blood vessels and nerves. In addition, the epimysium helps to maintain the shape of the muscle when it is contracted or stretched.

Clinical significance

Damage to the epimysium can result in muscle weakness and pain. In some cases, it may also lead to muscle atrophy. Conditions that can affect the epimysium include muscular dystrophy, fibromyalgia, and certain types of arthritis.

See also

• Muscular system
• Connective tissue
• Muscle contraction
• Muscular dystrophy
• Fibromyalgia
• Arthritis

References

Epimysium Resources
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