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During childbirth, a huge pressure may be exerted onto the vaginal tissues during the passing of the baby through the birth canal, especially onto the introitus, causing laxity. [8] In some cases, when the size of the baby is too large, the excessive stretching of the vaginal opening during childbirth may even cause tearing. [8]
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. [39] Estrogen is produced in large quantities during pregnancy and this causes the vulva to become enlarged. The vaginal opening and the vagina are also ...
During pregnancy, the os (opening) of the cervix is blocked by a thick plug of mucus to prevent bacteria from entering the uterus. During dilation, this plug is loosened. It may come out as one piece, or as thick mucus discharge from the vagina.
The vagina is a fibromuscular (made up of fibrous and muscular tissue) canal leading from the outside of the body to the cervix of the uterus. It is also referred to as the birth canal in the context of pregnancy. The vagina accommodates a penis during sexual intercourse.
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.
John says that while giving and receiving oral sex is fine, things like blowing into the vagina can be hazardous and may lead to serious complications like a venous air embolism for the fetus and ...
The opening to the human vagina lies just below the urethral opening at the back of the vestibule. A 1996 study by Pendergrass et al. using vinyl polysiloxane castings taken from the vaginas of 39 Caucasian women, found the following ranges of dimensions: [3] lengths (measured using rods): 6.9 to 14.8 cm (2.7 to 5.8 in);
In relation to the vagina, the part of the cervix that opens to the uterus is called the internal os and the opening of the cervix in the vagina is called the external os. [1] Between them is a conduit commonly called the cervical canal. The lower part of the cervix, known as the vaginal portion of the cervix (or ectocervix), bulges into the ...