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fertility
fertility
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Introduction References & Edit History Related Topics
Quizzes
Muscles of facial expression, human anatomy, (Netter replacement project - SSC). Human face, human head.
Characteristics of the Human Body
Male muscle, man flexing arm, bicep curl.
Facts You Should Know: The Human Body Quiz
Read Next
An ancient egyptian hieroglyphic painted carving showing the falcon headed god Horus seated on a throne and holding a golden fly whisk. Before him are the Pharoah Seti and the goddess Isis. Interior wall of the temple to Osiris at Abydos, Egypt.
11 Egyptian Gods and Goddesses
Discover
American bison (Bison bison) also known as buffalo or plains buffalo on the prairie, western U.S.
What’s the Difference Between Bison and Buffalo?
Prayer beads on Quran or Koran written in Arabic Islam's sacred and liturgical language. text, words, Ramadan
Celebrating Ramadan
Wolfgang Amadeus Mozart. Mozart rehearsing his 12th Mass with singer and musician. (Austrian composer. (Johann Chrysostom Wolfgang Amadeus Mozart)
7 Famous Child Prodigies
Alexander the Great on his deathbed
How Did Alexander the Great Really Die?
The Colosseum, Rome, Italy. Giant amphitheatre built in Rome under the Flavian emperors. (ancient architecture; architectural ruins)
New Seven Wonders of the World
Giorgione, Italian, 1477/1478-1510, The Adoration of the Shepherds, 1505/1510, oil on panel, overall: 90.8 x 110.5 cm (35 3/4 x 43 1/2 in.), Samuel H. Kress Collection, 1939.1.289, National Gallery of Art, Washington, D.C.
8 Must-See Paintings at the National Gallery of Art in Washington, D.C.
Chapter 4 pg 42 - Chapter header of The Adventures of Tom Sawyer by Mark Twain. Published in 1884 by The American Publishing Company
Periods of American Literature
human reproduction
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Last Updated: • Article History
Category: Science & Tech
Key People:
Severino Antinori
Gregory Pincus
Related Topics:
infertility
population pyramid
fertility rate
hieros gamos
total fertility rate
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fertility, ability of an individual or couple to reproduce through normal sexual activity. About 90 percent of healthy, fertile women are able to conceive within one year if they have intercourse regularly without contraception. Normal fertility requires the production of enough healthy sperm by the male and viable eggs by the female, successful passage of the sperm through open ducts from the male testes to the female fallopian tubes, penetration of a healthy egg, and implantation of the fertilized egg in the lining of the uterus (see reproductive system). A problem with any of these steps can cause infertility.

This article was most recently revised and updated by Kara Rogers.