4 Action potentials

48 10 3 key na k 3 rising phase of the ac0on poten0al

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Unformatted text preview: K+ Membrane poten0al (mV) +50 Ac0on poten0al –50 2 2 4 Threshold 1 5 1 Res0ng poten0al Depolariza0on Extracellular fluid 3 0 –100 Sodium channel Time Potassium channel Plasma membrane Cytosol Inac0va0on loop 1 Res0ng state Undershoot Fig. 48-10-3 Key Na+ K+ 3 Rising phase of the ac0on poten0al Membrane poten0al (mV) +50 Ac0on poten0al –50 2 2 4 Threshold 1 5 1 Res0ng poten0al Depolariza0on Extracellular fluid 3 0 –100 Sodium channel Time Potassium channel Plasma membrane Cytosol Inac0va0on loop 1 Res0ng state Undershoot Fig. 48-10-4 Key Na+ K+ 3 4 Rising phase of the ac0on poten0al Falling phase of the ac0on poten0al Membrane poten0al (mV) +50 Ac0on poten0al –50 2 2 4 Threshold 1 5 1 Res0ng poten0al Depolariza0on Extracellular fluid 3 0 –100 Sodium channel Time Potassium channel Plasma membrane Cytosol Inac0va0on loop 1 Res0ng state Undershoot Fig. 48-10-5 Key Na+ K+ 3 4 Rising phase of the ac0on poten0al Falling phase of the ac0on poten0al Membrane poten0al (mV) +50 Ac0on poten0al –50 2 2 4 Threshold 1 1 5 Res0ng poten0al Depolariza0on Extracellular fluid 3 0 –100 Sodium channel Time Potassium channel Plasma membrane Cytosol Inac0v...
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This note was uploaded on 02/18/2012 for the course BILD 2 taught by Professor Schroeder during the Spring '08 term at UCSD.

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