Structure and Function of the Ovaries

Layers of the Ovaries

The ovaries are composed of three distinct layers. Starting from the outermost layer, the first is made up of cuboidal epithelium, a specialized tissue that lines various organs in the body. Just beneath this layer lies the tunica albuginea, which is primarily composed of collagen and acts as a protective connective tissue. Finally, the innermost layer of the ovaries is known as the cortex, which houses the ovarian follicles. Situated within the cortex is the medulla, a central region consisting of blood vessels and loose connective tissue.


Follicles: The Key Players in Ovulation

When it comes to ovulation, ovarian follicles play a crucial role. These tiny structures consist of a group of cells, with each one housing a single egg or oocyte. During each menstrual cycle, around 10 follicles start the process of maturing, but only one emerges as the dominant follicle. This dominant follicle goes through various stages of maturation, known as folliculogenesis, before finally releasing an egg into the fallopian tube.

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