Exam3 416K-Fall 06 - Name _ Bio416K Physiology and...

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Name __________________________ Bio416K Physiology and Functional Anatomy Lecture Exam 3 Fall 06 1. Oflactory nerve fibers (cranial nerve I) are found __________________________. a. in the olfactory cortex b. passing through the cribriform plate of the ethmoid bone c. in the olfactory tracts d. in the thalamus e. all of the above are correct 2. A high-pitched sound will _______________________________. a. depolarize hair cells less than a low-pitched sound b. depolarize different hair cells than a low-pitched sound c. depolarize the same hair cells, but result in different CNS paths activated d. cause more frequent action potentials in hair cells than a low-pitched sound e. move the cilia of hair cells in the opposite direction as a low-pitched sound 3. When a photoreceptor (rod or cone) is exposed to light ______________________. a. the all- trans retinal changes to 11- cis retinal b. the G-protein transducin is inhibited c. the amount of cGMP increases d. the permeability of the cell membrane to sodium decreases e. the cell depolarizes and releases more neurotransmitter 4. Which sequence of events occurs when a person with normal eyesight looks at a distant object? a. pupils constrict, ciliary muscle contracts, suspensory ligaments relax, lenses become more convex (i.e., rounded) b. pupils dilate, ciliary muscle contracts, suspensory ligaments relax, lenses become less convex (i.e., thinner) c. pupils dilate, ciliary muscle relaxes, suspensory ligaments become taut, lenses become less convex d. pupils constrict, ciliary muscle contracts, suspensory ligaments relax, lenses become less convex e. pupils dilate, ciliary muscle contracts, suspensory ligaments become taut, lenses become less convex (i.e., thinner) 5. Foul and bitter taste sensations can initiate gagging and/or vomiting reflexes. The control (integrating) centers for these reflexes are found in the ______________. a. midbrain b. pons c. medulla d. cerebellum e. cerebral cortex 1
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6. Grandma’s house is an hour drive from yours. Every Sunday your family has lunch with grandma, and you always fall asleep in the back seat of the car on the way home, yet you always wake up as the car turns into the driveway at home. Which receptors were monitoring the progress of the route, the rotational turns, accelerations and decelerations of the drive, even though the conscious part of your brain was asleep? a.
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This note was uploaded on 03/19/2008 for the course BIO 416K taught by Professor Findell during the Fall '08 term at University of Texas at Austin.

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Exam3 416K-Fall 06 - Name _ Bio416K Physiology and...

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