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sample questions - 451 2010 Baizer Sample Questions 1. A...

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451 2010 Baizer Sample Questions 1. A complete, bilateral dorsal rhizotomy would be expected to eliminate permanently a. the stretch reflex. b. the tonic neck reflexes. c. voluntary movement of the arms. d. enkephalin interneurons in the dorsal horn. e. voluntary movement of the legs. answer: a. 2. Electrical stimulation of gamma motoneurons innervating a muscle would cause a. an increase rate of firing of IA fibers. b. a decrease of firing rate of alpha motoneurons to the muscle. c. a 10% increase in length of the muscle. d. a flexion reflex. e. no change in the rate of firing of the alpha motoneurons to the muscle. answer: a. 3. "Simple" cells are a. interneurons in the retina that lack axons. b. cells in the SMA. c. cells in the primary motor cortex. d. cells in the visual cortex that respond best to bars of light. e. cells in the lateral geniculate nucleus of the thalamus. answer: d. 4. Somatosensory cortex has somatotopic organization or "maps".
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This note was uploaded on 02/22/2011 for the course PGY 451 taught by Professor Baizer during the Spring '09 term at SUNY Buffalo.

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sample questions - 451 2010 Baizer Sample Questions 1. A...

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