There are four different types of volcanoes. A volcano is categorized both by formation and appearance. Different types of volcanoes also indicate the types of expected eruptions. The different types of volcanoes are: composite (or stratovolcanoes), shield, cinder cones and spatter cones.
A Vaginal Ring is a thin, transparent, flexible ring that you insert into the vagina yourself to provide contraception protection. Leave the Vaginal Ring in for 3 weeks while it slowly releases estrogen and progestin hormones into the body.
Rating Newest Oldest. Best Answer: Average size of the opening of the vagina (in a woman who has not delivered a baby through the birth canal) is 1.5-3.0 centimeters. This measurement is taken from the middle of the urethral opening to the posterior opening of the bottom part of the vagina. Average length of the vagina is approximately 8.0-12.5 centimeters.