What is an afferent neuron?

Aferent Neuron is one of the millions of cells forming sensory nerve, a vessel of the peripheral nervous system. These cells connect the end-to-end in a one-way chain and perform an electrical signal known as the nerve pulse from the receptors in the body along the nerve towards the central nervous system: spinal cord and brain. As the most basic unit of the nervous system, each afferent neuron is the only cell containing soma or cellular body and axon and dendritit, projection that transmits the nerve impulse through the cellular body and other neuron. In doing so, they send information to the central nervous system about pain, temperature, muscle tension and other sensory input, and then coordinates the answer to this information that is sent back to the body through eperential or motor neurons.

Nerve cells may vary in their specific structure, but each contains soma, the spherical cells with the nucleus inside; jEdin's axon, which protrudes from the cellular body as a tail and can be more than 1 meter (3 feet) or only 1 micrometer (0.00003937 inch) to length; And any number of dendrites that are either devoted to the end of the neuron and attach either to the neighboring neuron or to the body tissue they innervate. Aferent neuron has Soma, short axon and only long dendrit. Axon transmits the electrical pulse away from the cell body and therefore points towards the central nervous system.

This electrical signal travels just near Soma before reaching the end point of the axon known as the axon terminal, where it passes through the gap between neighboring neurons known as synapse. On the other hand, the synapse is a receiving dendritus of another afferent neuron. While dendrites of many nerve cells of the body resemble tree branches and perform impulses through a network of similar cells instead of and agreed chain, dendrite afferent neuron simply receives its signal and passes it and along the axon to the next cell. Does soVery quickly because of the presence of myelin sheath, mostly oily layers that surround dendritity, such as a rubber cover around the electric cord, which increases the conductivity of the fiber.

6 Like the circulation system in which the blood cycle through heart and lungs, out to the body and back, this system of afferent and eperential nerves works in a closed loop. In other words, for example, along the afferent neural pathways up at hand and arm, for example along the afferent neural pathway at hand and arms. Once an afferent nerve reaches the spinal cord near the neck base, IT cycling through the interneuron network that transmits it to the appropriate control center in the central nervous system. The reaction is quickly coordinated and sent by similar effects to the arm muscle and the torso responsible for grabbing the hand back if the water is too hot.