Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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Q4.7. Why does Na* enter the cell during the action potential? Because the Na* channels are open and only let Na* move from outside to inside Because the action potential pulls positive ions into the cell while Na* and K* channels are open Because Na channels are open and allow Na* ions to move down the length of the axon to produce neurotransmitter at the axon terminal Because Na" channels are open and there is a higher concentration of Na outside of the neuron than inside
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Transcribed Image Text:Q4.7. Why does Na* enter the cell during the action potential? Because the Na* channels are open and only let Na* move from outside to inside Because the action potential pulls positive ions into the cell while Na* and K* channels are open Because Na channels are open and allow Na* ions to move down the length of the axon to produce neurotransmitter at the axon terminal Because Na" channels are open and there is a higher concentration of Na outside of the neuron than inside
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