What are nerve fascicles?

Nerve fascicles are bundles of nerve fibers (axons) wrapped together within a protective sheath called the perineurium. They are part of a larger structure known as a nerve, which also includes other components like the epineurium and endoneurium that provide additional support and protection. Each fascicle can contain both sensory and motor nerve fibers, allowing for the transmission of signals between the nervous system and various parts of the body. The organization of fascicles helps to facilitate efficient communication within the nervous system.