Homework Help is Here – Start Your Trial Now!
Science
Biology
You decide to do a series of experiments to determine where the toxin has its effect. You accomplish this by using a good, old- fashioned sciatic nerve/gastrocnemius preparation from a frog leg. This preparation dissects out the sciatic nerve (which contains the alpha-motor neuron fibers) still connected to the gastrocnemius (calf) muscle as shown below. The prep is placed in artificial ECF. Muscle Nerve Femur When you stimulate the nerve electrically, the muscle contracts. When you directly stimulate the muscle electrically, it also contracts. You then add the curare to the artificial ECF. Now, when you stimulate the nerve, the muscle no longer contracts. However, when you stimulate the muscle directly, it does contract. Based solely on these data, this means curare is potentially acting on: O Either the alpha motor neurons' ability to conduct action potentials, or the muscle's ability to conduct action potentials, but not on the neuromuscular junction. O Either the alpha motor neurons' ability to conduct action potentials, or the neuromuscular junction, but not the muscle's ability to conduct action potentials. Either the neuromuscular junction or 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. It must only be affecting the neuromuscular junction. It must only be affecting the alpha motor neurons' ability to conduct action potentials. It could potentially be affecting any of these components.

You decide to do a series of experiments to determine where the toxin has its effect. You accomplish this by using a good, old- fashioned sciatic nerve/gastrocnemius preparation from a frog leg. This preparation dissects out the sciatic nerve (which contains the alpha-motor neuron fibers) still connected to the gastrocnemius (calf) muscle as shown below. The prep is placed in artificial ECF. Muscle Nerve Femur When you stimulate the nerve electrically, the muscle contracts. When you directly stimulate the muscle electrically, it also contracts. You then add the curare to the artificial ECF. Now, when you stimulate the nerve, the muscle no longer contracts. However, when you stimulate the muscle directly, it does contract. Based solely on these data, this means curare is potentially acting on: O Either the alpha motor neurons' ability to conduct action potentials, or the muscle's ability to conduct action potentials, but not on the neuromuscular junction. O Either the alpha motor neurons' ability to conduct action potentials, or the neuromuscular junction, but not the muscle's ability to conduct action potentials. Either the neuromuscular junction or 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. It must only be affecting the neuromuscular junction. It must only be affecting the alpha motor neurons' ability to conduct action potentials. 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,...
See similar textbooks
icon
Related questions
Question
You decide to do a series of experiments to determine where the toxin has its effect. You accomplish this by using a good, old- fashioned sciatic nerve/gastrocnemius preparation from a frog leg. This preparation dissects out the sciatic nerve (which contains the alpha-motor neuron fibers) still connected to the gastrocnemius (calf) muscle as shown below. The prep is placed in artificial ECF. Muscle Nerve Femur When you stimulate the nerve electrically, the muscle contracts. When you directly stimulate the muscle electrically, it also contracts. You then add the curare to the artificial ECF. Now, when you stimulate the nerve, the muscle no longer contracts. However, when you stimulate the muscle directly, it does contract. Based solely on these data, this means curare is potentially acting on: O Either the alpha motor neurons' ability to conduct action potentials, or the muscle's ability to conduct action potentials, but not on the neuromuscular junction. O Either the alpha motor neurons' ability to conduct action potentials, or the neuromuscular junction, but not the muscle's ability to conduct action potentials. O Either the neuromuscular junction or 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. 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:You decide to do a series of experiments to determine where the toxin has its effect. You accomplish this by using a good, old- fashioned sciatic nerve/gastrocnemius preparation from a frog leg. This preparation dissects out the sciatic nerve (which contains the alpha-motor neuron fibers) still connected to the gastrocnemius (calf) muscle as shown below. The prep is placed in artificial ECF. Muscle Nerve Femur When you stimulate the nerve electrically, the muscle contracts. When you directly stimulate the muscle electrically, it also contracts. You then add the curare to the artificial ECF. Now, when you stimulate the nerve, the muscle no longer contracts. However, when you stimulate the muscle directly, it does contract. Based solely on these data, this means curare is potentially acting on: O Either the alpha motor neurons' ability to conduct action potentials, or the muscle's ability to conduct action potentials, but not on the neuromuscular junction. O Either the alpha motor neurons' ability to conduct action potentials, or the neuromuscular junction, but not the muscle's ability to conduct action potentials. O Either the neuromuscular junction or 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. 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.
Expert Solution
steps

Step by step

Solved in 2 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Types of communication
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:
9780134580999
Author:
Elaine N. Marieb, Katja N. Hoehn
Publisher:
PEARSON
Biology 2e
Biology 2e
Biology
ISBN:
9781947172517
Author:
Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:
OpenStax
Anatomy & Physiology
Anatomy & Physiology
Biology
ISBN:
9781259398629
Author:
McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:
Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)
Molecular Biology of the Cell (Sixth Edition)
Biology
ISBN:
9780815344322
Author:
Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Publisher:
W. W. Norton & Company
Laboratory Manual For Human Anatomy & Physiology
Laboratory Manual For Human Anatomy & Physiology
Biology
ISBN:
9781260159363
Author:
Martin, Terry R., Prentice-craver, Cynthia
Publisher:
McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)
Inquiry Into Life (16th Edition)
Biology
ISBN:
9781260231700
Author:
Sylvia S. Mader, Michael Windelspecht
Publisher:
McGraw Hill Education
SEE MORE TEXTBOOKS