fascicle

The peripheral nervous system relies on nerves to transmit signals between the central nervous system and the body, with their structure featuring protective connective tissue layers and bundled axons for efficient conduction. This image, including a schematic diagram and a light micrograph (LM × 40) from simian tissue provided by the Regents of University of Michigan Medical School © 2012, illustrates key components such as the epineurium, perineurium, endoneurium, fascicle, axon, blood vessels, and spinal nerve, offering a clear view of nerve organization. Understanding these elements is fundamental to grasping how nerves maintain integrity and function in signal transmission.

The peripheral nerve's sectional view reveals a highly organized architecture designed for protection, support, and efficient signal transmission. This image illustrates key components such as the spinal nerve, epineurium, blood vessels, perineurium, endoneurium, fascicle, and axon, showcasing how connective tissues and vascular elements encase neural fibers. Understanding this structure is essential for comprehending nerve function and resilience in the nervous system.