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11 Cards in this Set
- Front
- Back
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Na+ |
The majority of the ions in the ECF along the membrane border are sodium ions |
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Ca2+ |
Calcium ions are also located mainly in the ECF along the membrane border of the axon |
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K+ |
These ions are located mainly in the ICF |
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CL- |
Numerous chloride ions are found in the ECF |
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protein |
There are numerous proteins found in the ICF of the a neuron These proteins are negatively charged This creates the negative characteristic of the ICF |
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Comparing the ECF and ICF of a neuron |
ECF is slightly more positive |
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Transmembrane potential |
difference in voltage between the ICF and ECF |
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Voltage difference of the ICF |
-70mV = resting membrane potential |
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When positive ions enter the ICF from the ECF, the voltage measurement will be |
-65 mV |
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When even more positive ions enter the ICF from the ECF, the voltage measurement will be |
-45 mV |
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The change in voltage could go from |
-70 mV to +35 mv |
