9. Muscle Tissue
Steps of Muscle Contraction
9. Muscle Tissue
Steps of Muscle Contraction
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- Multiple Choice
True or False: if false, choose the answer that best corrects the statement.
The events of excitation-contraction coupling involve converting the electrochemical signal to the mechanical movement of contraction.
1116views24rank - Multiple Choice
During an action potential, the phase where ___________ moves into the cell results in depolarization while the phase where ______________ exits the cell results in repolarization.
932views23rank - Multiple Choice
What is the role of the calcium ion in the signaling of an action potential at the neuromuscular junction?
1091views18rank - Multiple Choice
True or false: if false, choose the answer that best corrects the statement:
The motor neuron is in contact with the sarcolemma in order to efficiently pass the electrical signal to the muscle fiber.
1014views27rank - Textbook QuestionThe sites where the motor nerve impulse is transmitted from the nerve endings to the skeletal muscle cell membranes are the a. neuromuscular junctions, b. sarcomeres, c. myofilaments, d. Z discs.657views2rank
- Textbook QuestionContraction elicited by a single brief stimulus is called a. a twitch, b. temporal summation, c. multiple motor unit summation, d. fused tetanus.553views2rank
- Textbook QuestionA smooth, sustained contraction resulting from very rapid stimulation of the muscle, in which no evidence of relaxation is seen, is called a. a twitch, b. temporal summation, c. multiple motor unit summation, d. fused tetanus.550views2rank
- Textbook QuestionDuring muscle contraction, ATP is provided by a. a coupled reaction of creatine phosphate with ADP, b. aerobic respiration of glucose, and c. anaerobic glycolysis. ______ (1) Which provides ATP fastest? ______ (2) Which does (do) not require that oxygen be available? ______ (3) Which provides the highest yield of ATP per glucose molecule? ______ (4) Which results in the formation of lactic acid? ______ (5) Which has carbon dioxide and water products? ______ (6) Which is most important in endurance sports?786views2rank