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Home Q & A Board Biology-Related Homework Help Anatomy and Physiology
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Brainiac34 Brainiac34
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12 years ago
5) Name the three channels essential for generating an action potential. Which way do the ions move?

a. ----- channels into/ out of the cell

b. ----- channels into/ out of the cell

c. ----- channels into/ out of the cell

6) The pacemaker potential is due to a ----- efflux of ----- ions compared to a normal influx of -----ions.
Source  8th edition A&P martini
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#1
Valued Member
12 years ago
The gradual depolarization of the pacemaker potential is due to a least three factors: 1) a slow decline in outward potassium movement, 2) a slow inward calcium leak and, most importantly,  3) a slow inward current of sodium ions. 
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hlt
wrote...
#2
12 years ago
voltage-gated Na channels
voltage-gated K channels
voltage-gated Ca channels
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