Fascicles in the skeletal muscle are surrounded by:

Fascicles in skeletal muscle are surrounded by perimysium. This connective tissue plays a crucial role in the organization and function of skeletal muscle. The perimysium encases each fascicle, which is a bundle of muscle fibers, and helps to provide structural integrity, support, and pathways for blood vessels and nerves to supply the muscle fibers within those fascicles.

Understanding the organization of these connective tissues is essential for comprehending how muscles function as a whole. While the epimysium surrounds the entire muscle, and the endomysium surrounds individual muscle fibers within a fascicle, the perimysium specifically delineates the fascicles, thereby playing a key role in muscle contraction and overall biomechanics. The perineurium pertains to the protective covering of nerves, which is not related to muscle structure.