C acetylcholine is released into the synaptic cleft

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Unformatted text preview: osing the active sites on actin. J. Uptake of ATP by the myosin heads. 0% K. Attachment of actin-myosin crossbridges 0% and swiveling of the myosin heads. Score: 13. Feedback 0/0.5 Adipose Which tissue is important in being an insulator and shock absorber for the organs? Student Response A. Elastic connective tissue. B. Elastic cartilage. C. Adipose tissue D. Areolar tissue Score: 0/0.5 Value 0% 0% 100% 0% Feedback 14. smooth muscle 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 Score: 15. Value 100% 0% 0% Feedback 0/0.5 Impulse reaches the axon terminus What is the first thing that happens when an impulse reaches the axon terminus of a neuromuscular junction? A. B. C. D. E. F. G. H. I. J. K. Student Response Value Calcium ions enter the axon 100% Calcium ions enter the sarcoplasm from the 0% sarcoplasmic reticulum. Acetylcholine is released into the synaptic 0% cleft by exocytosis. Acetylcholine binds to post-synaptic 0% receptors on the sarcolemma. Na+ moves across the sarcolemma into the 0% muscle cell. Opening of the chemically-gated sodium 0% channels. Opening of the voltage-gated sodium 0% channels. Opening of potassium channels. 0% Binding of calcium ions to Troponin C. 0% Uptake of ATP by the myosin heads. 0% Attachment of actin-myosin crossbridges 0% and swiveling of the myosin heads. Score: 16. Feedback 0/0.5 excitation of heart Receptors which mediate excitation of the heart in response to stress are: Student Response A. cholinergic, nicotinic B. cholinergic, muscarinic C. adrenergic, alpha D. adrenergic, beta Score: 17. Value 0% 0% 0% 100% Feedback 0/0.5 multiple sclerosis A demyelination disorder of the CNS which results in impaired and disrupted conduction along axons is: Student Response A. paraplegia B. quadriplegia C. multiple sclerosis Value 0% 0% 100% Feedback Student Response D. Paget's disease Score: 18. Value 0% Feedback 0/0.5 periosteum Once completely hardened, osteoprogenitor cells must come from the _____ for bone repair. Student Response A. Sharpey's fibers B. red marrow C. yellow marrow D. periosteum Score: 19. Value 0% 0% 0% 100% Feedback 0/0.5 femur Match parts with letters. A lesser trochanter B head of femur C medial epicondyle D medial condyle E greater trochanter F intercondylar notch G anatomical neck H linea aspera I patellar articular surface Statement A B C D E F G H I Score: 20. 0/0.5 haversian systems Spongy bone lacks: Response not answered not answered not answered not answered not answered not answered not answered not answered not answered Value 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0 % Student Response A. osteocytes B. lacunae C. blood vessels D. Haversian systems Score: Value 0% 0% 0% 100% Feedback 0/0.5 View Attempt 4 of unlimited Title: Started: Submitted: Time spent: Alternate Substitute Quiz December 3, 2008 3:37 PM December 3, 2008 4:17...
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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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