Practice Quiz 4

Practice Quiz 4 - 1 Binding of to myosin permits...

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1. Binding of ______ to myosin permits cross-bridge __________ between actin actin and myosin. ATP & detachment 2. The thick myofilamentof a skeletal muscle fiber is composed of ___________. myosin 3. Which of the following is characteristic of isotonic muscle contraction? Contractions occur at constant tension The muscle shortens Contractions are used for body movements 4. A muscle which produces a desired action is called Prime mover agonist 5. The muscle attachment to the more moveable (less stable) bone is called the Insertion 6. Which of the following statements about the craniosacral component of the autonomic nervous system is corrected? It (craniosacral component of the autonomic nervous system) is composed of autonomic ganglia located near or in the inverted organ. It is composed of long preganglionic neurons and short postganglionic neurons. 7. During the excitation - contration coupling Ca ions are released from the sacroplasmic reticulum Ca ions are taken up by the sarcoplasmic reticulium 8. Muscle cells contain numerous ___________ because of their demand for ATP.
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