What is the connective tissue layer that surrounds an entire muscle?

What is the connective tissue layer that surrounds an entire muscle? The epimysium is.

The epimysium is a layer of dense irregular connective tissue wrapped around the whole muscle. It helps maintain the muscle’s structural integrity, separates it from neighboring tissues, and provides a pathway that connects with deeper connective-tissue layers and, ultimately, tendons. Its collagen-rich structure helps transmit force beyond individual muscle fibers.

The three main connective-tissue coverings are easy to confuse. Endomysium surrounds each individual muscle fiber, while perimysium encloses bundles of fibers called fascicles. Epimysium is the outer covering of the complete muscle. Fascia is a broader term for connective-tissue sheets and envelopes; it is continuous with the epimysium, but it is not the standard answer to this specific layer-by-layer anatomy question.

The name comes from Greek: epi- means “upon” or “above,” and mys refers to muscle. In meat preparation, epimysium is commonly encountered as silverskin, the tough membrane often trimmed from cuts because it remains chewy after cooking.