He said male homosexuality resulted when a young boy had an authoritarian, rejecting mother and turned to his father for love and affection, and later to men in general. The fallopian tubes pick up the ovum with the fimbria. Men and women react to sexual stimuli in a similar fashion with minor differences. The ovaries also produce female hormones progesterone and estrogen. Nature versus nurture Certain characteristics may be innate in humans; these characteristics may be modified by the physical and social environment in which people interact. Breasts develop during puberty in response to an increase in estrogen. Make and confirm all appropriate arrangements of equipment and space; coordinate with Conference Services about space reservations, facility needs and set up, AV requirements, and catering arrangements; coordinate with outside vendors regarding traditional poster boards and e-poster reservations, pricing, layout, etc. The psychological causes includes but are not limited to, stress, anxiety, and depression. The vagina is normally collapsed, but during sexual arousal it opens, lengthens, and produces lubrication to allow the insertion of the penis. The third part of the duct system is the ejaculatory ducts, which are 1-inch 2. Especially in humans, the extensive development of the neocortex allows the emergence of culture , which has a major influence on behavior. The labia minora become engorged with blood during sexual stimulation, causing them to swell and turn red. The social construction of gender has been discussed by many scholars, including Judith Butler. The Amorous Restoration, the first book in English devoted to literary and cultural life under the last Bourbon kings, considers this relationship in all its richness and many contradictions. A number of them, including neo-analytic theories, sociobiological theories, social learning theory , social role theory , and script theory , agree in predicting that men should be more approving of casual sex sex happening outside a stable, committed relationship such as marriage and should also be more promiscuous have a higher number of sexual partners than women. The testicles converge to form the seminiferous tubules , coiled tubes at the top and back of each testicle.