The Sensory System
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| Mechanoreceptors | Sensors that detect pressure on the skin, stretching in the muscles, and body movements.
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| Thermoreceptors | Receptors that detect changes in the internal and external changes of the body.
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| Pain receptors | Stimulated by damage or oxygen deprivation to tissues.
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| Chemoreceptors | Stimulated by changes in chemical concentrations. Examples include taste buds and the sense of smell.
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| Photoreceptors | Stimulated by light energy.
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| Thalamus | The sensory relay center for the brain.
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| Proprioceptors | A type of mechanoreceptor that is involved in reflex actions that maintain muscle tone, body equilibrium, and posture.
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| Cutaneous Receptors | Found in the deepest layer of the epidermis and all of the dermis, these receptors give the skin the sensitivity to touch, pressure, pain, and temperature.
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| Pain Receptors (Nociceptors) | There are somatic pain receptors found in the skin and muscles as well as visceral pain receptors that are found in the organs.
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| Referred Pain | Pain from the organs can often be felt in the skin due to the sensations traveling the same route to the spinal cord.
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| Taste Buds | The sensory receptors that are responsible for taste. Taste buds are embedded in the epithelium on the tongue and papillae.
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| Olfactory Cells | Olfactory cells are located on the roof of the nasal cavity and are modified neurons. These cells are responsible for the sense of smell.
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Created by:
Mr.Klein
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