PSYC 370 Lecture Notes - Lecture 15: Paramesonephric Duct, Vas Deferens, Seminal Vesicle
2 Mar 2017
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Document Summary
We are all genetically programmed to develop female bodies; males develop male bodies only because their female program of development is overruled. Influence development of anatomical and physiological characteristics that differentiate the sexes: occur primarily during prenatal development (some at puberty) Activational effects: activation of reproduction-related responses in mature individuals (post-puberty) Chromosomes: 22 pairs of autosomes, 1 pair of sex chromosomes. Until 7 weeks in utero- primordial gonads are the same in both sexes: cortex has potential to develop into ovaries, medulla (inner core) has potential to develop into testes. 6 weeks in utero- both sexes each have male wolffian system and female mullerian system: wolffian system- embryonic precursor of male reproductive ducts (epididymis, seminal vesicles, vas deferens) Seminal vesicles- hold the fluid in which sperm cells are ejaculated. Vas deferens- tube which sperm cells travel through to seminal vesicles: mullerian system- embryonic precursor of female reproductive ducts (uterus, Fallopian tubes- egg travel through from ovary uterus to be fertilized.
