QUESTION 4 In the resting state: voltage-gated Na+ and K+ channels are both closed voltage gated Na+ channels are open, but voltage gated K+ channels are closed voltage gated K+ channels are open, but voltage gated Na+ channels are closed voltage gated Na+ and K+ channels are both open

QUESTION 4 In the resting state: voltage-gated Na+ and K+ channels are both closed voltage gated Na+ channels are open, but voltage gated K+ channels are closed voltage gated K+ channels are open, but voltage gated Na+ channels are closed voltage gated Na+ and K+ channels are both open

Anatomy & Physiology

1st Edition

ISBN:9781938168130

Author:Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark Womble

Publisher:Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark Womble

Chapter12: The Nervous System And Nervous Tissue

Section: Chapter Questions

Problem 24RQ: Voltage-gated Na+ channels open upon leaching what state? resting potential threshold repolaiization...

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Osmosis

In simple words, osmosis is the slow, gradual movement of a liquid through a membrane. But there are nuances to this process. For instance, there has to be an imbalance in the distribution of solute in the liquid on either side of the membrane, which has to be semipermeable. The liquid in the region with a lower solute concentration moves to the region with a higher concentration, thereby displacing the solution in the process. The objective is to equalize the concentration of molecules on both sides of the membrane; the displacement of liquid can be viewed as a byproduct of this equalization. Since there is no energy required to carry osmosis, it is considered a passive process.

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