
	3D Medical Animations Close This information is provided by an independent source. Merck & Co. does not endorse and is not responsible for the accuracy of the content, or for the practices or standards of non-Merck sources. This information provided is not intended to be a substitute for professional medical advice. A licensed healthcare professional should be consulted for diagnosis and treatment of any and all medical conditions. The manufacturer of a product generally has the most complete information about that product. How to use How to use The world's largest library of 3D medical animations developed and copyrighted by Blausen Medical Communications. The Human Atlas figures rotating model, labeled slides, and printable text in addition to animated videos. Shows a video of the selected health topic. Controls play, pause, and restart of the video. Shows a summary of the selected health topic. Controls to scroll the text. Shows a 3 D model of the video. Controls to rotate the model. Shows slides from the video. Controls to change slides.

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This information is provided by an independent source. Merck & Co., Inc. is not responsible for this content. Please discuss any and all treatment options with your healthcare professional. The manufacturer of a product generally has the most complete information about that product.

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ovulation (ov″u-la´shәn) the discharge of a secondary oocyte (or occasionally more than one) from the graafian follicle; in an adult woman this normally occurs at intervals of about 28 days and alternates between the two ovaries. The discharged oocyte enters the fallopian tube and moves toward the uterus; if it encounters a spermatozoon while it is still alive (about 48 hours), the two merge and fertilization takes place, usually in the fallopian tube. The fertilized oocyte (zygote) then makes its way to the uterus, where it becomes embedded in the prepared wall as the first stage of growth of the fetus. If fertilization does not take place the oocyte loses its vitality and the blood and tissue lining the uterus are shed in the menstrual flow. adj., ov´ulatory., adj.

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