Labia

The labia are the major externally visible portions of the vulva. In humans and other primates, there are two pairs of labia: the labia majora (or the outer labia) are large and thick folds of skin that cover the vulva's other parts while the labia minora are the inner folds of skin between the outer labia that surround and protect the openings (known as a vestibule). Inside the vestibule are the introitus of the vagina and the meatus of the urethra. Upward from the labia minora is the clitoral hood that protects the clitoral glans.