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A. Imagine that the neuron is held in a culture medium where the concentration gradient for potassium is twice what it is in the normal condition (it is still in the same direction). Which point on the graph above would change the most in this new culture medium and how would it change? B. In the experiment described above, assume the muscle cell is in a separate dish and is exposed to a normal culture medium (no change in potassium). In this case, muscle cell that was the target of the motor neuron would . o contract normally o contract for a longer time than normal o contract for a shorter time than normal o fail to contract

A. Imagine that the neuron is held in a culture medium where the concentration gradient for potassium is twice what it is in the normal condition (it is still in the same direction). Which point on the graph above would change the most in this new culture medium and how would it change? B. In the experiment described above, assume the muscle cell is in a separate dish and is exposed to a normal culture medium (no change in potassium). In this case, muscle cell that was the target of the motor neuron would . o contract normally o contract for a longer time than normal o contract for a shorter time than normal o fail to contract

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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+70 C D B. A -70 Time in msec The diagram above shows the changes in membrane potential measured from a single point in a typical mammalian motor'neuron that has been artificially stimulated to threshold. Hin a culture medium Membrane potential in mV
Transcribed Image Text:+70 C D B. A -70 Time in msec The diagram above shows the changes in membrane potential measured from a single point in a typical mammalian motor'neuron that has been artificially stimulated to threshold. Hin a culture medium Membrane potential in mV
A. Imagine that the neuron is held in a culture medium where the concentration gradient for potassium is twice what it is in the normal condition (it is still in the same direction). Which point on the graph above would change the most in this new culture medium and how would it change? B. In the experiment described above, assume the muscle cell is in a separate dish and is exposed to a normal culture medium (no change in potassium). In this case, muscle cell that was the target of the motor neuron would o contract normally o contract for a longer time than normal o contract for a shorter time than normal o fail to contract
Transcribed Image Text:A. Imagine that the neuron is held in a culture medium where the concentration gradient for potassium is twice what it is in the normal condition (it is still in the same direction). Which point on the graph above would change the most in this new culture medium and how would it change? B. In the experiment described above, assume the muscle cell is in a separate dish and is exposed to a normal culture medium (no change in potassium). In this case, muscle cell that was the target of the motor neuron would o contract normally o contract for a longer time than normal o contract for a shorter time than normal o fail to contract
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