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.
In humans the vagina is about 9 cm (3.5 inches) long on average; it is located in front of the rectum and behind the bladder. The upper region of the vagina connects to the cervix of the uterus. The vaginal channel is narrowest at the upper and lower ends. In most virgins, the external opening to the vagina is partially closed by a thin fold of tissue known as the hymen. The opening (vaginal orifice) is partially covered by the labia majora.