Cholinergic nerve fibers are activated by or capable of liberating acetylcholine especially in the parasympathetic nervous system. In a similar manner the adrenergic nerves liberate epinephrine or related substances.
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Any of the cordlike bundles of fibers made up of neurons through which sensory stimuli and motor impulses pass between the brain or other parts of the.
Define cholinergic neurons. A cholinergic neuron is a nerve cell which mainly uses the neurotransmitter acetylcholine to send its messages. Acetylcholine is a signal molecule in the nervous system that is used by nerve cells to transfer information. Cholinergic neurons provide the primary source of acetylcholine to the cerebral cortex and promote cortical activation during both wakefulness and rapid eye movement sleep.
The synapse may involve one neuron in chemical contact with many adjacent neurons. Cholinergic nerve synonyms cholinergic nerve pronunciation cholinergic nerve translation english dictionary definition of cholinergic nerve. Neuromuscular junctions preganglionic neurons of the sympathetic nervous system the basal forebrain and brain stem complexes are also cholinergic.
The cholinergic nerves include all the preganglionic sympathetic and preganglionic parasympathetic nerves the postganglionic parasympathetic nerves the somatic motor nerves to skeletal muscles and some nerves to sweat glands and to certain blood vessels. The cholinergic system in the brain produces acetylcholine. A nerve that releases the neurotransmitter acetylcholine at its synapse.
The cholinergic nerves liberate at their axon endings a substance called which acts as a stimulant to the dendrites of adjacent neurons. Many neurological systems are cholinergic. Acetylcholine is found in cholinergic neurons.
The cholinergic system of neurons has been a main focus of research in aging and neural degradation specifically as it relates to alzheimers disease. The parasympathetic nervous system which uses acetylcholine almost exclusively to send its messages is said to be almost entirely cholinergic. For instance a cholinergic neuron is a neuron that releases acetylcholine and a cholinergic receptor is a receptor to which acetylcholine binds.
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