B. – Unequal distribution of ions across the plasma membrane
C. – sodium potassium pump 12. Threshold stimulus- weakest stimulus capable of production a response in an excitable tissue. Action potential- Long distance signals of axons. 13. All or none, self propagateing, not graded, travel short or long distance with losing strength, travel in one direction.
14 inside of cell becomes more positive
15. inside of cell