Which description matches the endomysium?

Which description matches the endomysium?

• A. Surrounds the entire muscle
• B. Surrounds a fascicle
• C. Surrounds an individual muscle fiber
• D. Surrounds the myofibril

Answer: (C)

The endomysium is the thin connective tissue layer that wraps each individual muscle fiber. It sits just outside the sarcolemma and separates one muscle cell from its neighbors, providing a delicate scaffold that supports the fiber and allows space for capillaries and small nerves to reach each cell. This layer also houses satellite cells, which play a role in muscle repair and growth. The endomysium is the innermost wrapping of skeletal muscle; the fascicles are wrapped by the perimysium, and the whole muscle by the epimysium. The myofibrils are inside the muscle fiber, so they aren’t surrounded by endomysium.

The endomysium is the thin connective tissue layer that wraps each individual muscle fiber. It sits just outside the sarcolemma and separates one muscle cell from its neighbors, providing a delicate scaffold that supports the fiber and allows space for capillaries and small nerves to reach each cell. This layer also houses satellite cells, which play a role in muscle repair and growth. The endomysium is the innermost wrapping of skeletal muscle; the fascicles are wrapped by the perimysium, and the whole muscle by the epimysium. The myofibrils are inside the muscle fiber, so they aren’t surrounded by endomysium.