Preganglionic (Preganglionic)

Preganglionic

Preganglionic is a term used to describe the axons of neurons in the autonomic nervous system. These axons exit the brain as part of the anterior roots of the spinal nerves or as part of the cranial nerves (rarely). They end in the ganglia, where they form synapses with the neurons of these ganglia. The axons of the latter, called postganglionic fibers, pass further to the effector organ (muscle or gland).

Thus, preganglionic fibers are the axons of nerve cells located in the brain and spinal cord, which end at synapses in the ganglia of the autonomic nervous system.

The preganglionic fiber (preganglion) is the axon of a neuron of the autonomic nervous system. Preganglions are ganglia located in the central nervous system and communicate between the spinal cord and peripheral nerve endings.

The preganglionic system consists of neurons that are located in the brain and transmit signals to the peripheral ganglia. These signals are transmitted through the axons of preganglionic fibers that exit the brain and pass through the spinal cord. They then reach the ganglia, where they form synaptic connections with ganglion cell neurons.

Postganglionic fibers are the axons of ganglion neurons that travel from ganglia to target organs. They transmit signals from neurons of the ganglion system to effector organs such as muscles or glands.

Thus, preganglionic and postganglionic fibers are important components of the autonomic nervous system and play an important role in regulating various body functions such as respiration, circulation, digestion, etc.

Preganglionic part of the ANS

Preganglionic sympathetic fibers move to the innervated organs along the spinal nerves and cranial nerve canals, as well as by connecting the branches of the first parts of the central nervous system. Fibers such as the preganglionic terminal segment