Nervous System Animations
|Print out several copies of this figure and use it to take notes regarding voltage and membrane potentials.|
The sodium-potassium pump (Na+-K+ ATPase) helps the cell maintain concentration gradients of both sodium (higher outside the cell) and potassium (higher inside the cell).
Gated channels continue to be investigated by researchers. This image of a gated potassium channel shows four pieces that fit together to barely allow K+ through a narrow channel when the gate is open.
Use this link to visit an interactive animation to learn the role of voltage gated channels in producing an action potential.
This animation shows the general idea of how voltage-gated sodium channels work(the details of the mechanism may not work exactly this way, but the basic concept is the focus here)
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Did you notice the EXTRA menu bar at the top of each Learning Outline page with extra helps?
Last updated: October 22, 2019 at 14:25 pm