Postganglionic

Postganglionic is a term used to describe the axon of a ganglion neuron of the autonomic nervous system that terminates in the smooth muscle or gland it innervates. In the sympathetic nervous system, postganglionic fibers are adrenergic, in the parasympathetic nervous system they are cholinergic. For comparison: Preganglionic.



Postganglionic, or postganglionic, (from the Latin post - after and ganglion - node) - part of the axon of a nerve fiber (neuron) that exits the ganglion (nerve ganglion). Postganglionic fiber innervates smooth muscle, glands and other tissues.

Postganglionic neurons are most often excited by other neurons. The postganglionic part of the axon can be shorter than the preganglionic part or the same length, but thinner. In most cases, there are more postganglionic neurons than preganglionic neurons, they form synapses with a larger number of effector cells, which ensures more efficient control of them.

In the sympathetic nervous system, most postganglionic fibers are adrenergic-myelinated, in the parasympathetic nervous system they are cholinergic-myelinated.



Postganglionic (English: postganglionic), the term is not accidentally translated from Greek as postganglionic. Postganglionic nerve endings travel a sufficient distance from the ganglion, which is the central control center of autonomic nervous regulation (ANS), and are already located in the tissues