2 which structure comes in two types eccrine and

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Unformatted text preview: rthritis C. bursitis D. gouty arhtritis Score: Value 100% 0% 0% 0% 0.67/0.67 14. The _____ are intracapsular ligaments which help to prevent anteroposterior displacement and twisting of the knee. Student Response A. medial and lateral collateral ligaments B. medial and lateral retinacula C. medial and lateral menisci D. anterior and posterior cruciate ligaments Score: Value 0% 0% 0% 100% 0.67/0.67 15. All true diarthrotic joints have a joint capsule composed of: Student Response A. serous membrane B. a ligament C. a retinaculum D. synovial membrane Score: 0.67/0.67 Value 0% 0% 0% 100% CONTRACTION COUPLING 1. What event causes repolarization of the sarcolemma? Student Response 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. Value 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% A. B. C. D. E. F. G. 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% Score: 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% 0.67/0.67 3. What is the first thing that happens when an impulse reaches the axon terminus of a neuromuscular junction? A. Calcium ions enter the axon Student Response Value 100% B. Calcium ions enter the sarcoplasm from the sarcoplasmic reticulum. C. Acetylcholine is released into the synaptic cleft by exocytosis. D. Acetylcholine binds to post-synaptic receptors on the sarcolemma. 0% 0% 0% E. F. G. H. I. J. K. Score: Student Response 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. Value 0% 0% 0% 0% 0% 0% 0% 0.67/0.67 4. As a result of threshold depolarization at the neuromuscular junction, what happens on the adjacent sarcolemma? Student Response Calcium...
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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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