Stimulus (physiology)
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In physiology, a stimulus is a detectable change in the internal or external environment.
When a stimulus is applied to a sensory receptor, it elicits or influences a reflex via stimulus transduction.
A stimulus is often the first component of a homeostatic control system.
When a sensory nerve and a motor nerve communicate with each other, it is called a nerve stimulus.
it could be due to a chemical, pressure, hearing or a temperature change.
In psychology, a stimulus is part of the stimulus-response relationship of behavioural learning theory.
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<nowiki>Hey oh my god it's the stimulus</nowiki>
