01:146:356 Chapter Notes - Chapter 10: Nociception, Lateral Inhibition, Neural Coding
23 Mar 2016
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Chapter ten: sensory perception: general properties of sensory systems. Special senses of vision, hearing, taste, smell, and equilibrium/ somatic senses of touch, temperature, pain, itch, and proprioception stimulus. Somatic stimuli: muscle length, tension, proprioception/ visceral stimuli: blood pressure, distention of gastrointestinal tract, blood glucose, body temp, osmolarity, lung inflation, ph of csf, ph and oxygen content of blood processing. Proprioception: awareness of body movement and position in space, which is mediated by muscle and joint sensory receptors called proprioceptors (unconscious and conscious) Simplest system pain/itch receptors: complex system multicellular sense organs: eye/ear. Receptors are sensitive to particular forms of energy o. Somatosensory receptors are neurons with free nerve endings, complex neural receptos have nerve endings enclosed in connective tissue capsules, special senses receptors release neurotransmitters onto sensory neurons so that action potentials can be inititated. Receptors for smell are neurons but all other senses have non-neuron receptors.
