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| 1598569157 | Mullerian Ducts | early precursors to female reproductive structures (oviducts, uterus, and upper vagina) | 0 | |
| 1598569158 | Wollfian ducts | Precursor to the male internal reproductive organs | 1 | |
| 1598569159 | SRY gene | the sex determining region of the Y chromosome in males. Encodes the testis-determining factor, which turns the primordial gonads into the testes | 2 | |
| 1598569160 | testes | Male sex glands or gonads that produce the male sex cells - sperm | 3 | |
| 1598569161 | androgens | Sex steroid hormones, including testosterone, found in higher levels in males than females. They are responsible for male sexual maturation. | 4 | |
| 1598569162 | ovaries | THE PRIMARY FEMALE REPRODUCTIVE ORGANS THAT PRODUCE AN OVUM, OR EGG, THAT, IF FERTILIZED, WILL DEVELOP INTO A FETUS. | 5 | |
| 1598569163 | estrogens | Develop the sex characteristics in women as well as secondary sex characteristics at puberty; with progesterone they promote breast development and menstruation | 6 | |
| 1598569164 | steroid hormones | make secondary sex characteristic in pubery. Female (estrogen, Progesterone), Male (testosterone) | 7 | |
| 1598569165 | testosterone | A sex hormone, the best known of the androgens; secreted in far greater amounts in males than females. | 8 | |
| 1598569166 | estradiol | A sex hormone, considered the chief estrogen. Females produce more estradiol than males do. | 9 | |
| 1598569167 | progesterone | A steroid hormone produced by the corpus luteum in the ovary during the second half of the menstrual cycle Progesterone maintains and enhances the uterine lining for the possible implantation of a fertilized ovum. It is the primary hormone secreted during pregnancy. | 10 | |
| 1598569168 | organizing effects | Long-lasting effects of a hormone that are present during a sensitive period early in development | 11 | |
| 1598569169 | activating effects | occur at any time in life when a hormone temporarily activates a particular response. Changes in secretion create effects within 15 min. last longer than hormone remains but not indefinitely | 12 | |
| 1598569170 | sensitive period | the time of when an organizing effect determines whether an embryo develops male or female anatomy | 13 | |
| 1598569171 | sexually dimorphic nucleus | area in the anterior hypothalamus that is larger in males than in females and contributes to control of male sexual behavior | 14 | |
| 1598569172 | alpha-fetoprotein | The alpha-fetoprotein (AFP) test is a blood test that is performed during pregnancy. This screening test measures the level of AFP in the mothers blood and indicates the probability that the fetus has one of several serious birth defects. The level of AFT can also be determined by analyzing a sample of amniotic fluid. | 15 | |
| 1598569173 | Gender/toy preference and hormones | prenatal hormones, especially testosterone alter brain in ways that influence differences between boys and girls and their chosen activities and interests. | 16 | |
| 1598569174 | Sildenafil | (viagra) increases male sexual ability by prolonging the effects of nitric oxide (blood flow into the penis) | 17 | |
| 1598569175 | impotence | inability to have an erection, not associated with low testosterone | 18 | |
| 1598569176 | luteinizing hormone | A protein hormone secreted by the anterior pituitary that stimulates ovulation in females and androgen production in males. | 19 | |
| 1598569177 | follicle-stimulating hormone | A hormone released by the pituitary gland that stimulates the production of sperm in the male and growth of the follicle (which produces the egg) in the female. | 20 | |
| 1598569178 | periovulatory period | the middle of the cycle, maximum fertility and high estrogen levels | 21 | |
| 1598569179 | oxytocin | A hormone released by the posterior pituitary that stimulates uterine contractions during childbirth and milk ejection during breastfeeding. | 22 |
