What is the connective tissue that wraps around the bundles of muscle fibres that make up a muscle called?

The connective tissue that wraps around the bundles of muscle fibers is known as the perimysium. This connective tissue plays a crucial role in organizing muscle fibers into fascicles, which are bundles that facilitate efficient contraction and force generation. The perimysium also contains blood vessels and nerves that supply the muscle, providing essential nutrients and signals for contraction.

In contrast, the epimysium is the outermost layer that surrounds the entire muscle, providing protection and structural integrity. The endomysium, on the other hand, is the thin connective tissue layer that surrounds individual muscle fibers within the fascicles. Fascia is a broader term that refers to the connective tissue that surrounds muscles, organs, and other structures but is not specific to muscle fiber organization. Therefore, the role of the perimysium in describing the wrapping around bundles of muscle fibers makes it the correct answer.