Where are eggs fertilized by sperm

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The New York Times. A canal through the cervix allows sperm to enter and menstrual blood to exit. Once in the uterus the fertilized egg can implant into thickened uterine lining and continue to develop. To log in and use all the features of Khan Academy, please enable JavaScript in your browser. This phase starts on the first day of your period. The ovulatory phase, or ovulation, starts about 14 days after the follicular phase started. The nucleus of the oocyte is called a pronucleus in this process, to distinguish it from the nuclei that are the result of fertilization.

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The cilia within the tube, and muscular contractions resulting from the movement of the egg, create a forward motion.

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Female Reproductive System

The sperm binds through the corona radiataa layer of follicle cells on the outside of the secondary oocyte. We encourage you to discuss with your doctor any questions or concerns you may have. During the follicular phase of the menstrual cycle, the following events occur:. On average, only a few of the billions of sperm released during the reproductive life of a human male will manage to fertilize an egg 2. Advertising on our site helps support our mission. Contact between the egg and sperm is random.

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3 thoughts on “Where are eggs fertilized by sperm

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