The vulva includes the:. The vagina is a muscular canal lined with nerves and mucus membranes. It connects the uterus and cervix to the outside of the body, allowing for menstruation, intercourse, and childbirth. The vaginal opening, also called the vaginal vestibule or introitus , is the opening into the vagina. The opening is where menstrual blood leaves the body.
Anatomy and Function of the Vagina
The vagina is an organ of the female reproductive tract. It is a distensible muscular tube which extends posterosuperiorly from the external vaginal orifice to the cervix. In this article, we will look at the anatomy of the vagina — its structure, innervation, vascular and lymphatic supply. Fig 2 — Sagittal section of the female pelvis, showing the anatomical relations of the vagina. The vagina is a fibromuscular tube with anterior and posterior walls — these are normally collapsed and thus in contact with one another. The shape of the vagina is not a round tunnel.
What Is the Vagina?
Vagina , canal in female mammals that receives the male reproductive cells, or sperm , and is part of the birth canal during the birth process. In humans, it also functions as an excretory canal for the products of menstruation. In humans the vagina is about 9 cm 3. The upper region of the vagina connects to the cervix of the uterus.
These parts are internal; the vagina meets the external organs at the vulva, which includes the labia, clitoris, and urethra. The vagina is attached to the uterus through the cervix, while the uterus is attached to the ovaries via the fallopian tubes. At certain intervals, the ovaries release an ovum, which passes through the fallopian tube into the uterus. If, in this transit, it meets with sperm, the sperm penetrates and merges with the egg, fertilizing it. The fertilization usually occurs in the oviducts, but can happen in the uterus itself.