This is an unofficial archive of PsychonautWiki as of 2025-08-11T15:14:44Z. Content on this page may be outdated, incomplete, or inaccurate. Please refer to the original page for the most up-to-date information.
Neuron: Difference between revisions
>Oskykins |
>Oskykins |
||
| Line 18: | Line 18: | ||
Eventually, the action potential will reach the end of an axon, known as a synaptic knob. | Eventually, the action potential will reach the end of an axon, known as a synaptic knob. | ||
==Action upon other | ==Action upon other neurones== | ||
A neurone affects other neurones by releasing a [[neurotransmitter]] that binds to chemical [[receptor|receptors]]. The effect upon the postsynaptic neurone is determined not by the presynaptic neurone or by the neurotransmitter, but by the type of receptor that is activated. Receptors can be classified broadly as [[Neurotransmitter#Excitatory and Inhibitory Effects|excitatory]] (causing an increase in firing rate), [[Neurotransmitter#Excitatory and Inhibitory Effects|inhibitory]] (causing a decrease in firing rate), or modulatory (causing long-lasting effects not directly related to firing rate). The distinction between excitatory and inhibitory neurotransmitters is not absolute, however. Rather, it depends on the class of chemical receptors present on the postsynaptic neurone. In principle, a single neurone, releasing a single neurotransmitter, can have excitatory effects on some targets, inhibitory effects on others, and modulatory effects on others still. | A neurone affects other neurones by releasing a [[neurotransmitter]] that binds to chemical [[receptor|receptors]]. The effect upon the postsynaptic neurone is determined not by the presynaptic neurone or by the neurotransmitter, but by the type of receptor that is activated. Receptors can be classified broadly as [[Neurotransmitter#Excitatory and Inhibitory Effects|excitatory]] (causing an increase in firing rate), [[Neurotransmitter#Excitatory and Inhibitory Effects|inhibitory]] (causing a decrease in firing rate), or modulatory (causing long-lasting effects not directly related to firing rate). The distinction between excitatory and inhibitory neurotransmitters is not absolute, however. Rather, it depends on the class of chemical receptors present on the postsynaptic neurone. In principle, a single neurone, releasing a single neurotransmitter, can have excitatory effects on some targets, inhibitory effects on others, and modulatory effects on others still. | ||
==See also== | ==See also== | ||