Chapter 13 sensory
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23 terms
Terms | Definitions |
|---|---|
receptor | Is a specialized area of a sensory neruon that detects a specific stimulus. Response to. |
Chemorecptors | Receptors stimulated by changes inthe chemicals such as H+, calcuim and food. |
Pain receptors or Nociceptors | Receptors stimulated by tissue damage or distention |
Thermoreceptors | Receptors Stimulated by changes in temperature. |
Mechanorecptors | Receptors stimulated by changes in pressure or movement of body fluids. |
Photreceptors | Receptors stimulated by light. |
Sensation | Is the conscious awareness of incoming sensory information. |
Four components are invovled inperception of sensation | StimulusReceptor Sensory Nereve Special area of the brain |
Stimulus | light is the stimulus for the sense of sight. |
Receptor | light waves stimulate the photoreceptors in the eye producing nerve impulse. |
Sensory nerve | nerve impulse conducted by sensory nerve (optic nerve)to the occipital lobe of the brain. |
Special Area of the Brain | The sensory information is interpreted as sight in the occipital lobe of the brain. |
Projection | the process whereby the brain after receiving a sensation refers that sensation back to its source. |
Adaption | Getting use to the smell in the room. |
Analgesics | drugs to relieve pain, asprin, acetaminophen, ibuprofen and opiods (morphine) |
Tactile Receptors | Touch receptors found mostly in the skin |
Cold Receptors | stimulated at between 50F to 76F |
Heat Receptors | stimulated at between 76F to 112F |
Proprioception | Is a sense of orientation or position Locate the body part without looing at it. |
Proprioceptors | located in the muscles, tendons and joints |
Olfaction | The sense of smell associated with sensory structures located in the upper nose. |
Olfatory receptors | classified as chemoreceptors |
Gustatory sense or gustation | sense of taste is often called social sense as in "lets do lunch". |
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