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2. Voltage gated Na+ channels have three state: open, closed and inactivated. Observe the following diagram of a neuron. The place marked with a "X" is where an action potential has just occurred. The circle marks where an action potential is about to occur. а. At each arrow in the diagram, A, B & C, indicate whether voltage gated Na+ channels are open, closed or inactivated. C В b. What would happen if you inserted an electrode in the middle of an axon that is at rest, and thereby induced a change in the membrane potential at that location to make it -40mV? Would an action potential result? Yes or No. If Yes, how would this be similar or different from a normal action potential? Explain briefly. What would happen if you inserted an electrode in the middle of an axon that is at rest, and thereby induced a change in the membrane potential at that location to make it -60mV? Would an action potential result? Yes or No. If Yes, how would this be similar or different from a normal action potential? Explain briefly. С.

2. Voltage gated Na+ channels have three state: open, closed and inactivated. Observe the following diagram of a neuron. The place marked with a "X" is where an action potential has just occurred. The circle marks where an action potential is about to occur. а. At each arrow in the diagram, A, B & C, indicate whether voltage gated Na+ channels are open, closed or inactivated. C В b. What would happen if you inserted an electrode in the middle of an axon that is at rest, and thereby induced a change in the membrane potential at that location to make it -40mV? Would an action potential result? Yes or No. If Yes, how would this be similar or different from a normal action potential? Explain briefly. What would happen if you inserted an electrode in the middle of an axon that is at rest, and thereby induced a change in the membrane potential at that location to make it -60mV? Would an action potential result? Yes or No. If Yes, how would this be similar or different from a normal action potential? Explain briefly. С.

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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2. Voltage gated Na+ channels have three state: open, closed and inactivated. Observe the following diagram of a neuron. The place marked with a "X" is where an action potential has just occurred. The circle marks where an action potential is about to occur. а. At each arrow in the diagram, A, B & C, indicate whether voltage gated Na+ channels are open, closed or inactivated. C b. What would happen if you inserted an electrode in the middle of an axon that is at rest, and thereby induced a change in the membrane potential at that location to make it -40mV? Would an action potential result? Yes or No. If Yes, how would this be similar or different from a normal action potential? Explain briefly. What would happen if you inserted an electrode in the middle of an axon that is at rest, and thereby induced a change in the membrane potential at that location to make it -60mV? Would an action potential result? Yes or No. If Yes, how would this be similar or different from a normal action potential? Explain briefly. C.
Transcribed Image Text:2. Voltage gated Na+ channels have three state: open, closed and inactivated. Observe the following diagram of a neuron. The place marked with a "X" is where an action potential has just occurred. The circle marks where an action potential is about to occur. а. At each arrow in the diagram, A, B & C, indicate whether voltage gated Na+ channels are open, closed or inactivated. C b. What would happen if you inserted an electrode in the middle of an axon that is at rest, and thereby induced a change in the membrane potential at that location to make it -40mV? Would an action potential result? Yes or No. If Yes, how would this be similar or different from a normal action potential? Explain briefly. What would happen if you inserted an electrode in the middle of an axon that is at rest, and thereby induced a change in the membrane potential at that location to make it -60mV? Would an action potential result? Yes or No. If Yes, how would this be similar or different from a normal action potential? Explain briefly. C.
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