An action potential is bounded by a region bordered on one extreme by the K+ equilibrium potential (-75 mV) and on the other extreme by the Na+ equilibrium potential (+55 mV). The resting potential is -60 mV.
report abuse it varies per person and per ethnicity average vagina is about 3 to 3 5 inches deep when unaroused but it can lengthen and widen several inches with arousal and childbirth usually around 7 inches deep with arousalthe average penis is only 5 5 6 5 inches and less than 1 % of the population has a penis over 8 inchesverage vagina is about 3 to 3 5 inches deep when unaroused but it can lengthen and widen several inches with arousal and childbirth usually around 7 inches deep with arousal
That means that men's agony about the length of their penis is pretty meaningless, and it also means that when the baby crowns at the opening, can be the most painful. About .4 to .8 inches (1 to 2 centimeters) inside the vagina, some women have a thin skin tissue that covers part of the vaginal opening.This tissue is known as the hymen, or the vaginal corona.agina Anatomy. The vagina resembles a deflated tube that's only 2 to 4 inches (5 to 10 centimeters) long and three-fourths of an inch (1.9 cm) wide [sources: Planned Parenthood; Harrison-Hohner ].