Special Senses Lect 6

Special Senses Lect 6 - Special Senses Sensory reception 1....

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1 Special Senses Sensory reception 1. Quality 2. Quantity Sensory receptors – specialized How do they work ? Act as tranducers Receptor potential - Vary in magnitude - Greater than -55 mv Action potential triggered
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2 Types of Sensory Receptors Source of Stimulus 1. Exterorecptors 3. Interceptors 2. Proprioceptors Types of Sensory Receptors Type of Stimulus 1. Mechanoreceptors 2. Chemoreceptors 3. Thermoreceptors 4. Photoreceptors (light) Types of Sensory Receptors Type of Stimulus
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3 Figure 41-2a,b Page 790 500 μm Pacinian corpuscle (deep pressure, touch) Hair follicle receptor (hair displacement) Meissner corpuscle (touch, pressure) Hair Free nerve endings (pain) Mechanoreceptors Figure 41-3 Page 791 Nerve ending Muscle spindle fibers Motor end plates on spindle fibers Golgi tendon organ Muscle fibers Motor end plates Nuclei Tendon Proprioceptors Stretch receptors Chemoreceptors Taste (gustation) Taste bud - microvilli
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4 Fig. 41-11a,b Page 798 Sinuses Neurons of the olfactory bulb
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This note was uploaded on 04/06/2008 for the course BIO 102 taught by Professor Brey during the Spring '08 term at Rutgers.

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Special Senses Lect 6 - Special Senses Sensory reception 1....

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