67067 6 the term means that a muscle will tend to

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Unformatted text preview: .67/0.67 11. The intervertebral disks are which type of joint classified according to structure? Student Response Value A. fibrous B. cartilaginous 0% 100% C. synovial 0% Score: 0.67/0.67 12. The trigger which causes vesicles of acetylcholine to move to the axon membrane and release ACh is: Student Response A. AChase +2 B. Ca C. Na+ D. K+ Score: Value 0% 100% 0% 0% 0.67/0.67 13. In the structural hierarcy of a muscle, each cell is filled with contractile structures called: Student Response A. myofilaments B. myofibrils C. myofibers D. myosin Score: Value 0% 100% 0% 0% 0.67/0.67 14. The type of smooth muscle in which an impulse passes through a large number of cells which subsequently contract in synchrony is: Student Response A. single unit smooth muscle B. multi-unit smooth muscle C. sphincter muscle Value 100% 0% 0% Score: 0.67/0.67 15. Movement in which the thigh is raised toward the abdomen is _____ of the hip. Student Response A. flexion B. extension C. abduction D. adduction Value 100% 0% 0% 0% 0.67/0.67 Score: View Attempt 1 of 3 Title: Started: Submitted: Time spent: Quiz #5 - Stimulus-Contraction Coupling October 3, 2008 11:09 AM October 3, 2008 11:30 AM 00:21:56 Total score: 10/10 = 100% Total score adjusted by 0.0 Maximum possible score: 10 1. What event causes repolarization of the sarcolemma? Student Response Value A. B. C. D. E. F. G. Calcium ions enter the axon Calcium ions enter the sarcoplasm from the sarcoplasmic reticulum. Acetylcholine is released into the synaptic cleft by exocytosis. Acetylcholine binds to post-synaptic receptors on the sarcolemma. Na+ moves across the sarcolemma into the muscle cell. Opening of the chemically-gated sodium channels. Opening of the voltage-gated sodium channels. H. Opening of potassium channels. 0% 0% 0% 0% 0% 0% 0% 100% I. Binding of calcium ions to Troponin C. J. Uptake of ATP by the myosin heads. K. Attachment of actin-myosin crossbridges and swiveling of the myosin heads. 0% 0% Score: 0% 0.67/0.67 2. What is the next thing which happens after an impulse enters the T tubules? Student Response A. Calcium ions enter the axon B. Calcium ions enter the sarcoplasm from the sarcoplasmic reticulum. Value 0% 100% C. D. E. F. G. H. I. J. K. 0% 0% 0% 0% 0% 0% 0% 0% Acetylcholine is released into the synaptic cleft by exocytosis. Acetylcholine binds to post-synaptic receptors on the sarcolemma. Na+ moves across the sarcolemma into the muscle cell. Opening of the chemically-gated sodium channels. Opening of the voltage-gated sodium channels. Opening of potassium channels. Binding of calcium ions to Troponin C. Uptake of ATP by the myosin heads. Attachment of actin-myosin crossbridges and swiveling of the myosin heads. 0% Score: 0.67/0.67 3. What is the first thing that happens when an impulse reaches the axon terminus of a neuromuscular junction? Student Response A. Calcium ions enter the axon B. C. D. E. F. G. H. I. J. K. Score: Calcium ions enter the sarcoplasm from the sarcoplasmic reticulum. Acetylcholine is rel...
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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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