postganglionaarsetele

Postganglionaarsetele refers to a stage in the autonomic nervous system's communication pathway. This term describes neurons whose cell bodies are located within a ganglion and whose axons extend to innervate target organs. The autonomic nervous system is divided into the sympathetic and parasympathetic nervous systems, both of which utilize a two-neuron chain to transmit signals from the central nervous system to effector organs.

The first neuron in this chain is the preganglionic neuron, originating in the central nervous system. Its axon synapses with the postganglionic neuron within an autonomic ganglion. The postganglionic neuron then carries the signal from the ganglion to the effector, which can be smooth muscle, cardiac muscle, or glands. Therefore, "postganglionaarsetele" directly relates to these second neurons and their role in relaying commands to various bodily functions such as heart rate, digestion, and glandular secretion. The neurotransmitters released by postganglionic neurons, like norepinephrine and acetylcholine, are crucial for mediating these responses.