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
External Female Genital Organs. The area between the opening of the vagina and the anus, below the labia majora, is called the perineum. It varies in length from almost 1 to more than 2 inches (2 to 5 centimeters). The labia majora and the perineum are covered with skin similar to that on the rest of the body. In contrast, the labia minora are lined with a mucous membrane, whose surface is kept moist by fluid secreted by specialized cells. The opening to the vagina is called the introitus.