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Sensory receptors, Pressure (mechanoreceptors) - Coggle Diagram
Sensory receptors
Pain (nociceptor)
Nociceptors can be defined as sensory receptors that are activated by noxious stimuli that damage or threaten the body's integrity. Nociceptors belong to the slowly conducting afferent A-delta and C fibers. They are classified according to their responses to mechanical, thermal, and chemical stimuli.
Function
Specialized peripheral sensory neurons known as nociceptors alert us to potentially damaging stimuli at the skin by detecting extremes in temperature and pressure and injury-related chemicals, and transducing these stimuli into long-ranging electrical signals that are relayed to higher brain centers.
Used for
Nociceptive pain due to a broken ankle gets better as the ankle heals. The body contains specialized nerve cells called nociceptors that detect noxious stimuli or things that could damage the body, such as extreme heat or cold, pressure, pinching, and chemicals.
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Light (photoreceptors)
Photoreceptors are specialized cells for detecting light. They are composed of the outer nuclear layer that contains the cell nuclei, the inner segment that houses the cell machinery, and the outer segment that contains photosensitive pigment.
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Function
Photoreceptors are specialized neurons found in the retina that convert light into electrical signals that stimulate physiological processes.
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