What are peripheral nerves?
Oct 11, 2022
Source: Cainiu Health
Dr. Yang Jun
Introduction
Peripheral nerves refer to the terminal ends of nerve fibers. Damage to peripheral nerves may lead to peripheral neuritis. Peripheral nerves can be divided into sensory nerve endings and motor nerve endings, playing an important role in controlling muscle sensation and movement throughout the body. When peripheral nerves are damaged, patients should actively treat the underlying condition and use neurotrophic medications as directed by their physician.
Peripheral nerves refer to the terminal ends of nerve fibers. Damage to peripheral nerves can lead to peripheral neuritis. These nerves are distributed throughout various tissues and organs in the body, such as the skin, mucous membranes, and muscles. Their primary function is to transmit sensory stimuli from the external environment to the central nervous system and relay commands from the central nervous system back to the body. Based on their functions, peripheral nerves are classified into sensory nerve endings and motor nerve endings, playing a crucial role in regulating muscle sensation and movement, as well as providing protective functions for the body.
If peripheral nerves are damaged, it may result in peripheral neuritis. This condition can be primary—such as from frequent exposure to heavy metals—or secondary, as seen in diabetic patients with poor blood glucose control, where prolonged hyperglycemia leads to peripheral nerve injury. Patients may experience symptoms including muscle atrophy in the distal extremities, persistently cold fingertips, and roughened skin. It is essential for patients to actively treat the underlying disease and follow medical advice in using neurotrophic agents, such as vitamin B12 and nerve growth factors, to alleviate symptoms.
