What does the epimysium surround?

The epimysium is a connective tissue that surrounds the entire muscle. It is a crucial component of the muscle structure, providing protection and support to the muscle as a whole. This outer layer not only helps define the shape of the muscle but also plays a role in the attachment of muscles to the surrounding tissues, including tendons and other muscles. Understanding the role of the epimysium is important for comprehending how muscles function and integrate with the overall musculoskeletal system. The other options refer to different levels of muscle or nerve organization, which do not involve the epimysium specifically. For example, individual muscle fibers are surrounded by another connective tissue called the endomysium, and bundles of neurons are related to nerve tissues rather than muscular structures.