BIOL 1320 Lecture Notes - Lecture 2: Ear Canal, Eardrum, Basilar Membrane
18 Feb 2016
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Document Summary
Introduction: capacity allow us to dicern and perceive sound, 3 regions. Increase to infection from middle ear: end up affecting the middle ear. The pressure is released by inserting tiny tubes into the tympanic membrane, draining of mucus. Inner ear: loud sounds can affect our sense of balance, disorienting to the brain: vesitbule: contain the structures in balance, semicircula canals: contain the structures in balance, cochlea: involved in hearing i. Has do with that frequency to cross the duct. They release neurotransmitter then is received by the afferent fibers of the cochlea nerve. They have the same height so the pressure is the same: frequency of the green and purple is the same, but the amplitude is different, so green is softer and purple is louder. Components of the neuropathway: round parts are the cell bodies, enters into the brain stem, the medulla is the first stop, then continuing to the midbrain.
