CHANGES MADE TO THE RMP
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Last updated 2:12 AM on 12/31/22
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6 Terms
1
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RESTING MEMBRANE POTENTIALS
* typical RMP value inside the cell, -70mv
* separation of opposite charges that exist across the cell membrane
* separation of opposite charges that exist across the cell membrane
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separation of opposite charges that exist across the cell membrane,,,,,,,,,,,,,,,,,,,,,,, WHY DOES THIS OCCUR?
separation of opposite charges that exist across the cell membrane,,,,,,,,,,,,,,,,,,,,,,, WHY DOES THIS OCCUR?
1. unequal distribution of ions (Na+ and K+ ions)
2. the selective permeability of the membrane
3. the Na+K+ ATPase pump, pumps 2K+ INTO the cell and 3NA+ OUT of the cell
3
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addition of an inhibitor:
* inhibits the Na+K+ATPase pump
* RMP increases from -70mv to -50mv
* RMP increases from -70mv to -50mv
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POLARISED: charged
RMP = -70mv
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DEPOLARISED: reduction in charge
\-70mv to -30mv
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HYPERPOLARISED: increase in charge
\-70mv to -90mv