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Cards In This Set
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Where are APs translated into perception?
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Cerebral Cortex
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What is Sensory Perception?
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Conscious awareness of stimuli received by sensory receptors
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How do General Senses work?
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Located all over the body. A receptor picks up the stimulus and sends it to the brain. Hence, they are "primary receptors."
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How do Special Senses work?
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Sight, smell, taste, hearing, balanceReceptor releases neurotransmitter, which binds to a second neuron, which goes to the brain. Hence, they are "secondary receptors."
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5 Stimulus-Based Receptors
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MechanoreceptorsChemoreceptorsThermoreceptorsPhotoreceptorsNociceptors
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Mechanoreceptors
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Stimulated by compression, bending, stretching of cells(Touch, pressure, hearing, balance, IN EARS)
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Chemoreceptors
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Stimulated by chemical (which often binds to ligand-gated voltage channel(Taste, smell)
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Nociceptors
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Extreme mechanical, chemical, temperature stimulusLocated deeper(Extreme pain)
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3 Location-Based Receptors
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ExteroreceptorsVisceroreceptorsProprioceptors
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Exteroreceptors
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Associated with skin
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Visceroreceptors
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Associated with organs
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Proprioceptors
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Associated with joints/tendons
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Free Nerve Endings
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Poke up into skinVery simple, bare dendritesCan be stimulus-based receptors (if thermoreceptors, they'll be more cool than warm)
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Merkel (Tactile) Disks
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MechanoreceptorsBranched (flattened fibers), flat, wideRight under skin, around basement membraneResponds to light touch & superficial pressure
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Hair Follicle Receptors
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MechanoreceptorsLight bending of hair
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