The ovaries are vital organs in the female reproductive system. They not only produce eggs every month but also produce hormones. Any interference with the ovaries can affect a woman's fertility.
What are ovaries?
The human sexual reproductive system enables humans to continue producing offspring. Women's and men's reproductive systems are fundamentally different. In women, the ovaries are important reproductive organs.
The ovaries are a pair of female reproductive organs located near the right and left pelvis on either side of the uterus. They are supported by a number of ligaments and pelvic muscles. Ovaries range in color from white to light gray. During a woman's fertile period, her ovaries measure 3-5 cm in size, and they shrink as she enters menopause.
During ovulation, the ovaries release an egg into the uterine canal. If sperm cells fertilize the egg, pregnancy will occur. If the egg is not fertilized by sperm cells, it will shed along with the uterine lining during menstruation.
The ovaries continue to release eggs until menopause. When a woman enters menopause, her ovaries stop releasing eggs.
Ovarian parts and functions
The ovary has three main parts:
- Outer Layer: The ovary has a surface layer formed of simple cuboidal epithelial tissue known as the germinal epithelium. This layer is supported by a dense connective tissue layer underneath.
- Ovarian Cortex: The ovarian cortex is made up of connective tissue stroma and numerous ovarian follicles. Each follicle contains an immature egg (oocyte) surrounded by a single layer of follicular cells.
- Medulla: The medulla is formed by loose connective tissue and is rich in nerve tissue and blood vessels.
Ovaries play important roles in female reproduction. According to the Cleveland Clinic, the ovaries perform the following functions:
Produce and release eggs
The ovaries play an essential role in conception and menstruation. Each ovary contains thousands of ovarian follicles. Every month, between days 6 and 14 of the menstrual cycle, FSH (follicle-stimulating hormone) causes the egg to mature. On the 14th day of the menstrual cycle, LH (luteinizing hormone) releases the mature egg, a process referred to as ovulation.
The released egg travels from the fallopian tube to the uterus. As the egg travels to the uterus, progesterone levels rise, preparing the uterine wall for pregnancy. If a mature egg is not fertilized by a sperm cell, it breaks down and is reabsorbed by the body, resulting in menstruation.
Produce hormones
The ovaries also produce several important female hormones, including:
- Estrogen: Regulates the menstrual cycle, maintains pregnancy, and protects heart health
- Progesterone: Contributes to the development of the female body during puberty
- Relaxin: Prepares the uterus to maintain pregnancy and prevent miscarriage
- Inhibin: Inhibits the pituitary gland from producing certain hormones
Ovarian health problems
The ovaries can also develop health issues that impact both the menstrual cycle and fertility. Some of the health issues that can arise in the ovaries include:
- Ovarian cysts: Fluid-filled sacs on the ovary, usually harmless
- PCOS (Polycystic Ovary Syndrome): A hormonal disorder characterized by cysts growing on the outer edges of the ovaries and irregular egg release
- Ovarian tumors: Growths of tissue on the ovary's surface layer, typically benign
- Ovarian cancer: Malignant growth of cancer in the lining of the ovaries
- Endometriosis: A condition where uterine tissue grows outside the uterus
The ovaries are vital organs of the female reproductive system. Problems with the ovaries can lead to impaired fertility. If you are experiencing ovarian problems, you should see a doctor right away.
If you need medical advice or consultation, you can either visit a doctor or make use of the consultation features that are available in the Ai Care application by downloading the Ai Care application from the App Store or Play Store.
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- Sean Edbert Lim, MBBS
Medline Plus. Available from: https://medlineplus.gov/ovariandisorders.html
Cleveland Clinic. Ovaries. Available from: https://my.clevelandclinic.org/health/body/22999-ovaries#
The Healthline Editorial Team. (2018). Ovary. Available from: https://www.healthline.com/human-body-maps/ovary
Vallie, S. (2022). Ovaries: What to Know. Available from: https://www.webmd.com/women/ovaries-what-to-know#