The reason why our body can function in a coordinated manner is that there are various types of nerves throughout the body, and cholesterin nerves are one of them. It is a type of nerve fiber that is transmitted by chemical substances and controls sweat glands, tear glands, stem cells, etc. It also grows in skeletal muscles and vasodilation parts. Neurons are the most important part of every nerve. There are many choleretic nerves. If you want to know more, please read below. Cholinergic nerves are nerve fibers that release acetylcholine as a chemical transmitter from their terminals. It mainly includes the secretory nerves that control the sweat glands and the vasodilator nerves of skeletal muscles, all preganglionic and postganglionic fibers of the parasympathetic nerves, all preganglionic fibers of the sympathetic nerves, a very small number of postganglionic fibers of the sympathetic nerves, motor nerves, and somatic nerves belonging to the choleretic nerves. The efferent nerves that synthesize acetylcholine and release acetylcholine from the peripheral nerves when excited are called choleretic nerves. All sympathetic and parasympathetic preganglionic fibers, all motor nerves, all parasympathetic postganglionic fibers and "very few sympathetic postganglionic fibers" (such as the nerves that control the secretion of sweat glands and the vasodilator nerves of skeletal muscles) are cholesteric nerves, so the answer is C. Almost all sympathetic postganglionic fibers. "Acetylcholine" is the transmitter of choleretic nerves, which include: all preganglionic fibers of autonomic nerves, postganglionic fibers of parasympathetic nerves, motor nerves and a very small number of postganglionic fibers of sympathetic nerves. Neurons that release acetylcholine (Ach) as a neurotransmitter are called choleretic neurons. Choline acetyltransferase (ChAT) and acetylcholine esterase (AchE) are synthesized in the cell body of choleretic neurons and then transported to nerve terminals and released. One of the specific markers of choleretic neurons is the presence of ChAT. Existing monoclonal antibodies to this enzyme have been able to visualize choleretic neurons using immunohistochemistry. The choleretic neurons of the mammalian nervous system can be divided into four major categories. The first type of choleretic neurons are entirely within the peripheral nervous system and are all parasympathetic postganglionic neurons and some sympathetic postganglionic neurons that innervate sweat glands and specialized blood vessels. The second type of choleretic neurons have their bodies located in the spinal cord and brainstem, while their axons terminate in the periphery. This class includes all neurons that innervate skeletal and visceral motor functions, that is, those whose cell bodies are located in the anterior, middle, and lateral visceral chains, the hypoglossal nucleus, the nucleus ambiguus, the dorsal motor nucleus of the vagus nerve, the facial nucleus, the salivary and lacrimal complexes, the trigeminal motor nucleus, the trochlear nucleus, the motor complex, and the accessory nucleus. |
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