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human reproductive system
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Science & Tech
- Related Topics:
- zygote
- gonad
- gamete
- female reproductive system
- male reproductive system
- On the Web:
- LiveScience - Reproductive System: Facts, Functions and Diseases (Mar. 28, 2024)
human reproductive system, organ system by which humans reproduce and bear live offspring. Provided all organs are present, normally constructed, and functioning properly, the essential features of human reproduction are (1) liberation of an ovum, or egg, at a specific time in the reproductive cycle, (2) internal fertilization of the ovum by spermatozoa, or sperm cells, (3) transport of the fertilized ovum to the uterus, or womb, (4) implantation of the blastocyst, the early embryo developed from the fertilized ovum, in the wall of the uterus, (5) formation of a placenta and maintenance of the unborn child during the entire ...(100 of 7765 words)