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The myometrium is located between the endometrium (the inner layer of the uterine wall) and the serosa or perimetrium (the outer uterine layer).. The inner one-third of the myometrium (termed the junctional or sub-endometrial layer) appears to be derived from the Müllerian duct, while the outer, more predominant layer of the myometrium appears to originate from non-Müllerian tissue and is ...
Asherman's syndrome, also known as intrauterine adhesions, occurs when the basal layer of the endometrium is damaged by instrumentation (e.g., D&C) or infection (e.g., endometrial tuberculosis) resulting in endometrial sclerosis and adhesion formation partially or completely obliterating the uterine cavity.
Endometrial arteries are divided into the common ones and the arteriovenous anastomosis. The common ones are arteries that are homologous to the arteries of the rest of the body and they enrich the endometrium of the uterus. The joining of endometrial arteries and veins of the endometrium is known as arteriovenous. [1]
The junction zone (JZ), or a small distinct hormone-dependent region at the endometrial-myometrial interface, may be assessed by three-dimensional transvaginal ultrasound (3D TVUS) and MRI. Features of adenomyosis are disruption, thickening, enlargement or invasion of the junctional zone. [ 21 ]
Uterine glands or endometrial glands are tubular glands, lined by a simple columnar epithelium, found in the functional layer of the endometrium that lines the uterus. Their appearance varies during the menstrual cycle. During the proliferative phase, uterine glands appear long due to estrogen secretion by the ovaries.
Benign gynecological conditions include fecal incontinence, urinary incontinence, uterine and/or vaginal wall prolapse, interstitial cystitis, irritable bowel syndrome, diverticulitis, benign ovarian masses, uterine fibroids, endometriosis, ectopic pregnancy, pelvic inflammatory disease, adenomyosis, endometrial polyps, and endometrial ...
Micrograph showing decidualization of the endometrium due to exogenous progesterone (oral contraceptive pill). H&E stain.. Decidualization is a process that results in significant changes to cells of the endometrium in preparation for, and during, pregnancy.
The primary reproductive function of the human uterus is to prepare for the implantation of a zygote, a fertilized ovum, and maintenance of pregnancy if implantation occurs. [22] Traveling along the fallopian tube on its way to the uterine cavity, the zygote divides mitotically to become a blastocyst , which ultimately attaches to the uterine ...