friday-key - Version A: Page 1 of 9 KEY - FINAL Friday June...

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Version A: Page 1 of 9 KEY -- FINAL Friday June 17, 2005 KEY -- FINAL 1. You are recording from a bipolar cell that hyperpolarizes in response to glutamate. When light shines on a photoreceptor that directly synapses onto this bipolar cell, this bipolar cell will ________________________. depolarize 2. _______________________ is a ringing in the ears, thought to be caused by a malfunctioning cochlear amplifier. tinnitus 3. The ____________(1)__________________________ use(s) interaural intensity differences to localize sound. What causes interaural intensity differences? ______________________________(2)_______________________________________ (1) lateral superior olive and medial nucleus of the trapezoidal body (abbreviations and minor misspellings were accepted) (2) your head casts a shadow of sound waves 4. Rods are used for primarily for ____________(1)______________ vision and cones are used primarily for ________(2)________________ vision. (1) night, scotopic, low-light, monochromatic, peripheral (2) day, photopic, color, central
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Version A: Page 2 of 9 KEY -- FINAL Friday June 17, 2005 KEY -- FINAL 5. Ototoxic drugs can poison hair cells. This would be an example of ________________(1)_______________ hearing loss. If this happened in your left ear, with the Weber test sound would appear louder in your ____________(2)______________ ear. (1) sensorineural (2) right, unaffected 6. Tension on the tip links causes _____________(1)___________ of hair cells because ____________(2)_______________ flow(s) into the cell. (1)
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friday-key - Version A: Page 1 of 9 KEY - FINAL Friday June...

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