2006-10-16 07:19:52 · 5 answers · asked by Winner! 2 in Health ➔ Men's Health
-Nipples are especially sensitive and are a source of sexual stimuli, even for many men.
-Nipples are the result of an efficient plan of embryonic development. Human embryos contain characteristics of both sexes at first, because they all have basically the same genetic information. It is design economy. For example, in all human embryos, at first both the mullerian duct system (female) and the wolffian duct system (male) develop, because both sexes have the genetic information for these structures. Incidentally, this refutes the urban myth that human embryos "start out female."
2006-10-17 05:08:12 · answer #1 · answered by Questioner 7 · 0⤊ 1⤋
From the site listed below:
"Sexual differentiation in mammals is biased towards developing as a female, so that it is often said that female is the default developmental pathway. Two processes: defeminization, and masculinization, are involved in producing male typical morphology and behavior. Disruption of either of these processes in males produces female-typical development. The opposite is not true, disruption of normal sexual development in females does not lead to male-typical endpoints."
Aloha
2006-10-16 21:04:24 · answer #2 · answered by Anonymous · 0⤊ 0⤋
For a lot of the growth process the sexes aren't differentiated.
2006-10-16 14:49:06 · answer #3 · answered by Dirty_Idea 3 · 0⤊ 0⤋
perhaps you should check the answers to your previous questions, or search the archive. You seem hung up on this question from your profile history.
2006-10-16 14:55:53 · answer #4 · answered by Anonymous · 0⤊ 0⤋
because men are women right up to the last delevlopment.
2006-10-16 14:33:42 · answer #5 · answered by Anonymous · 0⤊ 0⤋