Nerve
A Nerve is a bundle of axons that ...
- See: Nerve Tract, Nervous System, Axon, Peripheral Nervous System, Electrochemical, Action Potential, Sensory Nerve, Central Nervous System, Neuron, Schwann Cell, Myelin, Endoneurium, Pinched Nerve.
References
2019
- (Wikipedia, 2019) ⇒ https://en.wikipedia.org/wiki/nerve Retrieved:2019-1-12.
- A nerve is an enclosed, cable-like bundle of nerve fibres called axons, in the peripheral nervous system. A nerve provides a common pathway for the electrochemical nerve impulses called action potentials that are transmitted along each of the axons to peripheral organs or, in the case of sensory nerves, from the periphery back to the central nervous system. Each axon within the nerve is an extension of an individual neuron, along with other supportive cells such as Schwann cells that coat the axons in myelin.
Within a nerve, each axon is surrounded by a layer of connective tissue called the endoneurium. The axons are bundled together into groups called fascicles, and each fascicle is wrapped in a layer of connective tissue called the perineurium. Finally, the entire nerve is wrapped in a layer of connective tissue called the epineurium.
In the central nervous system, the analogous structures are known as tracts.
- A nerve is an enclosed, cable-like bundle of nerve fibres called axons, in the peripheral nervous system. A nerve provides a common pathway for the electrochemical nerve impulses called action potentials that are transmitted along each of the axons to peripheral organs or, in the case of sensory nerves, from the periphery back to the central nervous system. Each axon within the nerve is an extension of an individual neuron, along with other supportive cells such as Schwann cells that coat the axons in myelin.