Development of the
Female
Sexual & Reproductive Organs
Development of the
Female
Sexual & Reproductive Organs
What came first, the chicken or the egg? While we do not know the answer to this question, we do know all humans start out being physically female, even though genetically they may be male. For the first eight weeks of our existence, both male and female fetuses have the same rudimentary reproductive and sexual organs. In the early stages of fetal development the maternal hormones control the development of the reproductive organs as the fetus is incapable of producing its own. It is not until the twelfth week of development that you can start to visually determine the sex of a fetus. The image below demonstrates how even after more than twelve weeks, they still look very similar.
From the book "A Child is Born" Page
83
Copyright 1965 Albert Bonniers
Copyright 1966 Dell Publishing
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It is for this reason that male and female reproductive and sexual organs are more alike than they first appear. The clitoris is actually a penis that is not fully developed, or another way of looking at it, a penis is a fully developed clitoris. As with a penis, the clitoral glans and shaft become engorged with blood during sexual arousal resulting in an erection. When the clitoris becomes well developed it looks exactly like a small penis, minus a urethra. In addition the glans and corona may be well defined and the entire clitoris may project outward from the body. A woman can have a large clitoris at birth, or acquire one as the result of taking prescription and non-prescription steroids.
The first image shown below details the stages of development for the female external genitals. The image below that shows both the development and similarities between the male and female external genitals.
From the book "Pediatric and Adolescent
Gynecology" Page 13
Copyright 1994 W. B. Saunders Company
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From the book "For Each Other" Page
56
By Lonnie Barbach
Copyright 1982 Lonnie Barbach
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From the book "Foundations of Embryology"
Page 531
By Bradley M. Patten, Ph.D. & Bruce M. Carlson, M.D.,
Ph.D.
Copyright 1958, 1964, 1974 by McGraw-Hill, Inc.
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From the book "Pictorial Human
Embryology" Page 48
By Stephen G. Gilbert
Copyright 1989 by the University
of Washington Press.
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The below illustrations show the development of both
the internal
and external female sexual and reproductive organs.
From the book "Pictorial Human
Embryology" Pages 53, 54, 56, 58
By Stephen G. Gilbert
Copyright 1989 by
the University of Washington Press.
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