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Vagina Screenshot_20220816_204056 - Coggle Diagram
Vagina 
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Functions
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Immune defense- protection against harmful pathogens via acidic pH, local flora, and chemical signaling
Layers
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Elastic lamina propria – a dense connective tissue layer which projects papillae into the overlying epithelium. The larger veins are located here
Fibromuscular layer – comprising two layers of smooth muscle; an inner circular and an outer longitudinal layer.
Adventitia – a fibrous layer, which provides additional strength to the vagina whilst also binding it to surrounding structures.
Location
Related to many organs
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Posterior – rectouterine pouch, rectum and anal canal.
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Parts of the vagina
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Vaginal wall
The wall contains layers of tissue with many elastic fibers. The surface of the wall also contains rugae, which are pleats of extra tissue that allow the vagina to expand during sex or childbirth.
Hymen
:The hymen is a thin membrane that surrounds the opening to the vagina. Though hymens can range in shape and size
Blood supply
The arterial supply to the vagina is via the uterine and vaginal arteries – both branches of the internal iliac artery.
REFERENCES
SELLERS Midwifery Second Edition,. Pauline McCall Sellers, Joan Dippenaar and Dicky da Serra. 2012,37
Medically reviewed by Debra Sullivan, Ph.D., MSN, R.N., CNE, COI — Written by Adrienne Santos-Longhurst — Updated on May 4, 2020
www.healthline.com
Original Author(s): Louisa Thompson
Last updated: May 29, 2022
teach me anatomy.info/pelvic/vagina
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