Spring07Test3 - Name _ Bio416K Physiology and Functional...

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Name __________________________ Bio416K Physiology and Functional Anatomy Lecture Exam 3 Spring 07 1. The quantity of neurotransmitter that is released by a hair cell into a synapse with a sensory neuron increases _______________________________. a. in response to any mechanical stimulation of the hair cell b. when the stereocilia of the hair cell are displaced away from the kinocilium c. when the stereocilia of the are equally displaced to either side of the kinocilium d. when the stereocilia of the hair cell are displaced toward the kinocilium e. none of the above 2. A stroke that caused damage to the basal nuclei in the left cerebral hemisphere would most likely result in ______________________________. a. flaccid paralysis of muscles on the right side of the body b. flaccid paralysis of muscles on the left side of the body c. loss of movements controlled by central pattern generators (CPGs) d. uncoordinated, jerky, inappropriate patterns of movement e. hyperactive muscles with increased muscle tone and exaggerated limb reflexes (i.e., spastic paralysis) 3. The release of epinephrine from cell of the adrenal medulla is caused by __________________________. a. epinephrine binding to adrenal beta adrenergic receptors b. norepinephrine binding to adrenal alpha adrenergic receptors c. norepinephrine binding to adrenal beta adrenergic receptors d. acetylcholine binding to adrenal nicotinic cholinergic receptors e. acetylcholine binding to adrenal muscarinic cholinergic receptors 4. A device that monitors the activity of the photoreceptor cells of retina indicates that there is a sudden decrease in the flow of neurotransmitter being released by the photoreceptor cells. This information implies that the subject _____________. a. has moved into a dark room b. is focusing on a distant object c. has moved outside into bright sunlight d. is focusing on a close-up object e. is reading 5. Foul and bitter tastes can initiate gagging and/or vomiting reflexes. The control (integrating) centers for these reflexes are found in the _________________. a. midbrain b. pons c. limbic system d. cerebellum 1
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e. medulla 6. In order to keep it in focus, which sequence of events occurs when an object is moved closer to the eye (i.e., normally less than 20 feet from the eye)? a. pupils constrict, ciliary muscle contracts, suspensory ligaments relax, lenses become more convex (i.e., rounded) b. pupils constrict, 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) 7. In the process of surgically removing a large pituitary gland tumor, the neurosurgeon
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Spring07Test3 - Name _ Bio416K Physiology and Functional...

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