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10 Nov 2019
II. What neurotransmitter is released from the the a. sodium anglionic fiber? b. dopamine 16. Muscle tension is produced internally within the a myosin molecules acetylcholine norepinephrine d. eãepinephrine b, actin molecules e. T tubules d. sarcoplasmic reticulum e. sarcomeres 12. What chemical compound do motor-ncuron axon terminals release? 17. Calcium is released from what organelle to initiate muscle contraction? b. e. nicotinic acid d. acetylcholine e sodium ions a. T-Tubule. b. Vacuole c. Sarcoplasmic reticulum. d. Sarcomere. e. Myoblasts. 13. Each muscle cell is stimulated by how many neuromuscular junctions? 18. One motor neuron, plus all the muscle fibers it innervates, is known as a(n) a. five b. four c. three d two e one a. nerve bundle b. motor unit c. activated component d. cross bridge e. functional unit 14. What molecules form the thick filaments 19. What is the first source for supplying additional ATP when exercise begins? within muscle? a. microfilaments b. myosin c. actin d. myoblasts e. troponin a. oxidative phosphorylation b. glycolysis c. lactate d. creatine phosphate e. chondroitin 15. During muscle contraction, what becomes smaller? 20. Which of the following structures normally controls the amount of light entering the eye? a. The length of the sarcomere b. thin filaments c. the width of the A band d. thick filaments e. All of the above a. ciliary muscle b. cornea С. Iris d. lens
II. What neurotransmitter is released from the the a. sodium anglionic fiber? b. dopamine 16. Muscle tension is produced internally within the a myosin molecules acetylcholine norepinephrine d. eãepinephrine b, actin molecules e. T tubules d. sarcoplasmic reticulum e. sarcomeres 12. What chemical compound do motor-ncuron axon terminals release? 17. Calcium is released from what organelle to initiate muscle contraction? b. e. nicotinic acid d. acetylcholine e sodium ions a. T-Tubule. b. Vacuole c. Sarcoplasmic reticulum. d. Sarcomere. e. Myoblasts. 13. Each muscle cell is stimulated by how many neuromuscular junctions? 18. One motor neuron, plus all the muscle fibers it innervates, is known as a(n) a. five b. four c. three d two e one a. nerve bundle b. motor unit c. activated component d. cross bridge e. functional unit 14. What molecules form the thick filaments 19. What is the first source for supplying additional ATP when exercise begins? within muscle? a. microfilaments b. myosin c. actin d. myoblasts e. troponin a. oxidative phosphorylation b. glycolysis c. lactate d. creatine phosphate e. chondroitin 15. During muscle contraction, what becomes smaller? 20. Which of the following structures normally controls the amount of light entering the eye? a. The length of the sarcomere b. thin filaments c. the width of the A band d. thick filaments e. All of the above a. ciliary muscle b. cornea С. Iris d. lens
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