Anatomy and Cell Biology 3319 Lecture Notes - Lecture 47: Labia Majora, Vulva, Pubic Symphysis
9 Jul 2018
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Vagina: tubular fibromuscular organ, cervix of uterus enters vagina at ~ 90 , forms deep recess fornix, vaginal orifice, three layers, outer adventitia, middle muscularis, mucosa with transverse rugae. Functions: excretory duct for passage of menses, receives penis and ejaculate (sperm, birth canal, communicates superiorly with cervix. Relations: anterior: base of bladder + urethra, lateral: levator ani, pelvic fascia, ureters, posterior: anal canal, rectum, rectouterine pouch, note: vagina is not as important as the uterus but either way still has anatamosis. In a female not only urethra, but also a vagina: muscular sheet with 2 parts: levator ani and coccygeus. Moving out closer and closer to the skin: urogenital triangle is filled in by the urogenital diaphragm. How can we compare these parts with the male: compare homologies with the male since they have a common embryological origin but develop on different pathways.
