Uterus
Uterus - Related Videos
01:19
Histology of the Uterus
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2025
The uterine wall consists of three histological layers: the perimetrium, myometrium, and endometrium. The outermost perimetrium is a thin, serous membrane connected with the broad ligament on the sides, which helps anchor the uterus in the pelvic cavity. The thickest layer, myometrium, is mainly made up of smooth muscle tissue bundles. Its contractions are vital in facilitating the expulsion of the uterine lining, fetus, and placenta during menstruation and childbirth. The endometrium is the...
01:18
Uterus and Cervix
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2025
The uterus, commonly called the womb, is a vital reproductive organ in females designed to provide a nurturing environment for the implantation and growth of an embryo. It is shaped like a hollow pear and positioned between the urinary bladder and the rectum. The uterus's structure allows it to support and protect a developing fetus throughout pregnancy. The uterus is securely anchored within the pelvic cavity by paired broad ligaments on either side. It is further stabilized by three pairs of...
06:55
Assessment of Maternal Vascular Remodeling During Pregnancy in the Mouse Uterus
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Cited by 27 •
2015
This protocol describes a technique to assess changes in the maternal vasculature during pregnancy in mice. Using stereological methods, remodeling of the decidual spiral arteries is assessed quantitatively and the results confirmed qualitatively using immunohistochemistry.
06:24
Establishing 3D Endometrial Organoids from the Mouse Uterus
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Cited by 8 •
2023
This protocol describes methodologies to establish mouse endometrial epithelial organoids for gene expression and histological analyses.
06:22
Surgical Approach, Challenges, and Resolutions for Uterus Transplantation in Rats
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2023
The present protocol describes all the essential steps for successful uterine transplantation (UTx) in rats. The rat model has proven suitable to promote the clinical implementation of UTx; however, rat UTx is a highly complex procedure requiring careful instructions.
FAQs
Ovarian hormones regulate the endometrium so it thickens in preparation for possible embryo implantation. When pregnancy does not occur, the associated hormonal changes signal the lining to break down and shed during menstruation. This coordination links ovarian activity with uterine readiness and explains why uterine changes recur as part of the reproductive cycle.
The endometrium is maintained in a thickened state while hormonal signals support preparation for implantation. If pregnancy does not occur, those hormonal conditions change, and the lining breaks down. Menstrual shedding therefore represents the outcome of a cycle in which the uterus prepared for implantation but did not receive an embryo requiring continued support.
The endometrium provides the hormone-responsive lining that prepares for embryo implantation, whereas the myometrium supplies the muscular tissue responsible for contractions during labor. Their functions complement one another: one changes to support the reproductive cycle and implantation, while the other generates force needed for a later stage of pregnancy and birth.
Uterine biology provides a framework for understanding how implantation, placental development, and fetal development are connected. The endometrium must become suitable for implantation, after which uterine processes remain relevant to the developing pregnancy. Studying these relationships helps biology researchers examine pregnancy as a coordinated interaction between reproductive tissues and developmental events.
Research on the uterus can clarify reproductive cycles, implantation, pregnancy, fertility, and the development of reproductive disease. It also connects cellular and tissue changes with broader biological outcomes, such as whether the uterine environment supports implantation or undergoes menstrual shedding. These questions make uterine biology important across both basic and reproductive research.
Examining normal uterine structure and cycle-related changes provides a baseline for understanding disorders including endometriosis, fibroids, and uterine cancer. Researchers can compare disease-associated changes with the processes that normally regulate the endometrium and myometrium. This biological context supports investigation of how reproductive tissues become dysfunctional and informs the development of treatments for reproductive disease.
Because implantation and endometrial preparation are central uterine processes, studying them contributes to contraception and assisted reproduction. Research can focus on how the uterine environment supports or prevents implantation and how uterine biology interacts with fertility-related interventions. The same knowledge also contributes to regenerative medicine and approaches for treating reproductive conditions.