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Given what you have learned from the first experiment, you prepare the other leg for a fresh experiment. When you add acetylcholine to the preparation, the muscle contracts. You add curare, and again add acetylcholine to the preparation, and the muscle does not contract. Based on these data, and the data from the first experiment, this means curare is potentially acting on: O Both the alpha motor neurons' ability to conduct action potentials, and the muscle's ability to conduct action potentials, but not on the neuromuscular junction. O Both the alpha motor neurons' ability to conduct action potentials, and the neuromuscular junction, but not the muscle's ability to conduct action potentials. O Both the neuromuscular junction and the muscle's ability to conduct action potentials, but not on the alpha motor neurons' ability to conduct action potentials. It must only be affecting the muscle's ability to conduct action potentials. It must only be affecting the neuromuscular junction. O It must only be affecting the alpha motor neurons' ability to conduct action potentials. O It could potentially be affecting any of these components.

Given what you have learned from the first experiment, you prepare the other leg for a fresh experiment. When you add acetylcholine to the preparation, the muscle contracts. You add curare, and again add acetylcholine to the preparation, and the muscle does not contract. Based on these data, and the data from the first experiment, this means curare is potentially acting on: O Both the alpha motor neurons' ability to conduct action potentials, and the muscle's ability to conduct action potentials, but not on the neuromuscular junction. O Both the alpha motor neurons' ability to conduct action potentials, and the neuromuscular junction, but not the muscle's ability to conduct action potentials. O Both the neuromuscular junction and the muscle's ability to conduct action potentials, but not on the alpha motor neurons' ability to conduct action potentials. It must only be affecting the muscle's ability to conduct action potentials. It must only be affecting the neuromuscular junction. O It must only be affecting the alpha motor neurons' ability to conduct action potentials. O It could potentially be affecting any of these components.

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Given what you have learned from the first experiment, you prepare the other leg for a fresh experiment. When you add acetylcholine to the preparation, the muscle contracts. You add curare, and again add acetylcholine to the preparation, and the muscle does not contract. Based on these data, and the data from the first experiment, this means curare is potentially acting on: Both the alpha motor neurons' ability to conduct action potentials, and the muscle's ability to conduct action potentials, but not on the neuromuscular junction. O Both the alpha motor neurons' ability to conduct action potentials, and the neuromuscular junction, but not the muscle's ability to conduct action potentials. O Both the neuromuscular junction and the muscle's ability to conduct action potentials, but not on the alpha motor neurons' ability to conduct action potentials. O It must only be affecting the muscle's ability to conduct action potentials. O It must only be affecting the neuromuscular junction. O It must only be affecting the alpha motor neurons' ability to conduct action potentials. O It could potentially be affecting any of these components.
Transcribed Image Text:Given what you have learned from the first experiment, you prepare the other leg for a fresh experiment. When you add acetylcholine to the preparation, the muscle contracts. You add curare, and again add acetylcholine to the preparation, and the muscle does not contract. Based on these data, and the data from the first experiment, this means curare is potentially acting on: Both the alpha motor neurons' ability to conduct action potentials, and the muscle's ability to conduct action potentials, but not on the neuromuscular junction. O Both the alpha motor neurons' ability to conduct action potentials, and the neuromuscular junction, but not the muscle's ability to conduct action potentials. O Both the neuromuscular junction and the muscle's ability to conduct action potentials, but not on the alpha motor neurons' ability to conduct action potentials. O It must only be affecting the muscle's ability to conduct action potentials. O It must only be affecting the neuromuscular junction. O It must only be affecting the alpha motor neurons' ability to conduct action potentials. O It could potentially be affecting any of these components.
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