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7 Cards in this Set
- Front
- Back
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What is the normal concentration gradient in a resting potential? |
Sodium is at a higher concentration outside the nerve while Potassium is at a higher concentration inside the nerve |
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What is the meaning of potential difference in the nerve? |
The voltage difference caused due to the differences in concentration of a substance in the inside and outside of a nerve fibre is called the potential difference. |
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What is diffusion potential of a substance? |
The voltage difference needed to stop the natural diffusion of a substance according to the concentration gradient from inside to outside or from outside to inside of a nerve fibre is called the diffusion potential of that substance. |
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What is the diffusion potential of potassium? |
The diffusion potential of Potassium is -94 Milli volts |
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What is the diffusion potential of sodium in the nerve membrane? |
It is 61 Mili volt positive inside the membrane. |
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What is the Nernst equation? |
The relation of diffusion potential to the Ion concentration difference across a membrane |
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What is the Nernst potential? |
The diffusion potential across the membrane that opposes the net diffusion of that ion across the membrane is called the Nernst potential of that ion. |
