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
approx or average depth and width of vagina is 3 to 4 inch fist intercourse hymin is broken foreplay by boy the girl is prepared for sex and her vagina is very much wet and vegina is elastic so long and wide penis is easily hold into her veginaut on average the size of a girl s vagina from the vaginal opening to the cervical opening is about 3 4 inches most men s penises average from 4 6 inches so during sexual intercourse the body will direct blood to the vagina and vaginal opening along with the labias to anticipate a penal penetration