o Hair follicle receptors o Meissner corpuscles o Pacinian corpuscles o Ruffini

O hair follicle receptors o meissner corpuscles o

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o Hair follicle receptors o Meissner corpuscles o Pacinian corpuscles o Ruffini corpuscles - Proprioceptors o One’s own perception o Muscle Tension Muscle spindles Golgi Tendon organs - Baroreceptors o Blood Pressure Carotid sinus Aortic arch Sound Detection - Also detected by mechanoreceptors - Aquatic vs. Terrestrial sound o Otoliths: Enable fish to detect sound o Outer, middle, inner ear: Human sound - Middle ear = three ossicle bones = malleus, incus, stapes = smallest bones in body Transduction- The Cochlea - Spiral shaped, complex structure that is fluid filled - Sound waves are converted to pressure waves that travel through the cochlear duct and strike the organ of corti - Organ of corti o Basilar membrane o Sensory hair cells o Stereocilia o Tectorial Membrane Balance and Sensing Motion - Achieved using the inner ear as a “living gyroscope” - Vestibular Apparatus: The same type of “hair” cell cilia Frequency Localization in the Cochlea - Low frequency sound causes the basilar membrane to vibrate at the apex - High frequency sound causes the basilar membrane to vibrate at the base Motion Receptors -
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  • Fall '19

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