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In biological morphology and anatomy, a sulcus (pl.: sulci) is a furrow or fissure (Latin fissura, pl.: fissurae). It may be a groove, natural division, deep furrow, elongated cleft, or tear in the surface of a limb or an organ, most notably on the surface of the brain , but also in the lungs , certain muscles (including the heart ), as well as ...
When standing or with the legs together, the labia majora usually entirely or partially cover the moist, sensitive inner surfaces of the vulva, which indirectly protects the vagina and urethra, [5] much like the lips protect the mouth. The outer surface of the labia majora is pigmented skin, and develops pubic hair during puberty.
The labia majora contain the labia minora, interlabial sulci, clitoral hood, clitoral glans, frenulum clitoridis, the Hart's Line, and the vulval vestibule, where the external openings of the urethra and the vagina are located.
The vagina is an important part of the female anatomy, but many people know very little about it. "When we do exams in the office, we get out a mirror, show women their vaginas and point out the ...
In pregnancy, the vulva and vagina take on a bluish coloring due to venous congestion. This appears between the eighth and twelfth week and continues to darken as the pregnancy continues. [38] Estrogen is produced in large quantities during pregnancy and this causes the vulva to become enlarged. The vaginal opening and the vagina are also ...
Or, “Your vagina is inside your body where we can’t see, just like other body parts, like your heart and stomach.” Generally speaking, Rubin says her best advice is to “use real words and ...
The term vagina is from Latin vāgīna, meaning "sheath" or "scabbard". [1] The vagina may also be referred to as the birth canal in the context of pregnancy and childbirth. [2] [3] Although by its dictionary and anatomical definitions, the term vagina refers exclusively to the specific internal structure, it is colloquially used to refer to the vulva or to both the vagina and vulva.
At around ten weeks, the external genitalia are still similar. At the base of the glans, there is a groove known as the coronal sulcus or corona glandis. It is the site of attachment of the future prepuce. Just anterior to the anal tubercle, the caudal end of the left and right urethral folds fuse to form the urethral raphe.