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Figure 3 Current-voltage plots of ion channels. (a) An I-V curve of an ion channel that conducts positively charged ions. Above the equilibrium potential, there is outward current; below the equilibrium potential, there is inward current. An ohmic ion channel has a linear I- V relationship. (b) Rectifiers pass more current in one direction. I-V curves of ion channels that rectify curve upwards or downwards.

Figure 3 Current-voltage plots of ion channels. (a) An I-V curve of an ion channel that conducts positively charged ions. Above the equilibrium potential, there is outward current; below the equilibrium potential, there is inward current. An ohmic ion channel has a linear I- V relationship. (b) Rectifiers pass more current in one direction. I-V curves of ion channels that rectify curve upwards or downwards.

membrane potential initially create a strong driving force for Na + to enter the cell and can cause the membrane potential to approach ENa, (e.g., at the peak of action potentials).

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Breaking Bulimia

Breaking Bulimia

We have all been there: turning to the refrigerator if feeling lonely or bored or indulging in seconds or thirds if strained. But if you suffer from bulimia, the from time to time urge to overeat is more like an obsession.

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