Score value 100 0 0 0 11 4 a multipolar neuron has

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Unformatted text preview: es and swiveling of the myosin heads. Score: Value Feedback 0% 0% 0% 0% 0% 0% 0% 0% 100% 0% 0% 0/0.5 3. conscious sensations Which of the following tracts is responsible for conscious sensations? Student Response A. spinocerebellar tract B. Fasciculus cuneatus and fasciculus gracilis C. spinothalamic tract D. both #2 and #3 Value 0% 0% 0% 100% Feedback Score: 0.5/0.5 4. spongy bone The spaces in spongy bone are initially filled with: Student Response A. Sharpey's fibers B. red marrow 0% 100% C. yellow marrow D. periosteum 0% 0% Score: Value Feedback 0.5/0.5 5. hyperpolarization Opening of the chemically-gated K+ channels would produce: Student Response Value A. depolarization B. C. D. E. F. Feedback 0% 0% 0% 0% 0% 100% Score: hyperpolarization EPSP IPSP Both #1 and #3. Both #2 and #4. 0/0.5 6. autonomic vs. somatic The autonomic nervous system differs from the somatic nervous system in which of the following ways: Student Response A. The autonomic system is motor only, while the somatic is both motor and sensory. B. The autonomic system has two motor neurons, the somatic has only one, in each reflex arc. C. The autonomic system has a ganglion in each motor pathway from the CNS, the somatic nervous system does not. D. All of the above. E. #2 and #3 only. Value 0% 0% 0% 0% 100% Feedback Score: 0.5/0.5 7. Tissues vs. Characteristics 2 Match each type of tissue with its description. fibrocartilage all connective tissues are derived from this elastic cartilage found as costal cartilage hyaline cartilage found in the epiglottis and ear mesenchyme a lining and covering membrane serosa found in symphysis pubis Statement fibrocartilage elastic cartilage hyaline cartilage mesenchyme serosa Score: Response found in symphysis pubis found in the epiglottis and ear found as costal cartilage all connective tissues are derived from this a lining and covering membrane Value 20.0% 20.0% 20.0% 20.0% 20.0 % 0.2/0.5 8. haversian systems Spongy bone lacks: Student Response Value A. osteocytes B. lacunae C. blood vessels 0% 0% 0% D. Haversian systems 100% Score: 0/0.5 9. Crossbridge attachment As soon as the active sites are exposed on actin: Feedback Student Response A. Calcium ions enter the axon B. Calcium ions are pumped back into the sarcoplasmic reticulum. C. Acetylcholine is released into the synaptic cleft by exocytosis. D. Acetylcholine binds to post-synaptic receptors on the sarcolemma. E. Na+ moves across the sarcolemma into the muscle cell. F. Breakdown of ACh by AChase. G. Opening of the voltage-gated sodium channels. H. Opening of potassium channels. I. The troponin-tropomyosin complex shifts, exposing the active sites on actin. J. Uptake of ATP by the myosin heads. K. Attachment of actin-myosin crossbridges and swiveling of the myosin heads. Score: Value Feedback 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 100% 0/0.5 10. contractile elements In the structural hierarcy of a muscle, each cell is filled with contractile structures called: A. myofilaments B. myofibrils Stu...
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This note was uploaded on 01/29/2013 for the course BIOL 239 taught by Professor Swan during the Fall '12 term at New Mexico.

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