Peripheral nerves are part of the nervous system that connect the central nervous system (CNS) to the rest of the body. They transmit signals between the brain and spinal cord and various body parts, allowing for movement, sensation, and coordination. These nerves are categorized into sensory nerves, which carry information from the body to the CNS, and motor nerves, which send commands from the CNS to muscles.
Peripheral nerves are composed of bundles of nerve fibers, or axons, surrounded by protective tissue. They can regenerate after injury, although the process can be slow and may not always restore full function. Damage to peripheral nerves can lead to conditions such as neuropathy, causing pain, weakness, or numbness.