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Neurotransmitters are essential to the function of complex neural systems. The exact number of unique neurotransmitters in humans is unknown, but more than 100 have been identified. [ 3 ] Common neurotransmitters include glutamate , GABA , acetylcholine , glycine , dopamine and norepinephrine .
Neurotransmitter receptor – membrane receptor that can be activated by a neurotransmitter. Interactions between neurotransmitters and neurotransmitter receptors can evoke a wide range of differing responses from the cell receiving the signal, including excitation, inhibition, and various types of modulation. Category:Receptors
The neurotransmitter binds to receptor molecules in the membrane of the target cell. [8] Synapses are the key functional elements of the brain. [11] The essential function of the brain is cell-to-cell communication, and synapses are the points at which communication occurs.
The nervous system derives its name ... the function of this structure is currently unclear. ... Many synapses use more than one neurotransmitter—a common ...
Nitric oxide functions as a neurotransmitter, despite being a gas. It is not grouped with the other neurotransmitters because it is not released in the same way. Endocannabinoids act in the endocannabinoid system to control neurotransmitter release in a host of neuronal tissues, including the hippocampus, amygdala, basal ganglia, and cerebellum.
Monoaminergic systems, i.e., the networks of neurons that use monoamine neurotransmitters, are involved in the regulation of processes such as emotion, arousal, and certain types of memory. It has also been found that monoamine neurotransmitters play an important role in the secretion and production of neurotrophin-3 by astrocytes, a chemical ...
Acetylcholine (ACh) is an organic compound that functions in the brain and body of many types of animals (including humans) as a neurotransmitter. [1] Its name is derived from its chemical structure: it is an ester of acetic acid and choline. [2] Parts in the body that use or are affected by acetylcholine are referred to as cholinergic.
Primarily using the neurotransmitter acetylcholine (ACh) as a mediator, the parasympathetic system allows the body to function in a "rest and digest" state. [9] Consequently, when the parasympathetic system dominates the body, there are increases in salivation and activities in digestion, while heart rate and other sympathetic response decrease ...