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| prenatal development from sex hormones produce layout in brain for male or female structures |
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| sex hormones from prenatal development activate at puberty |
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| every embryo contains precursors of |
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Definition
| Wolffian ducts (male) & Mullerian ducts (female) |
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| Testicular hormones stimulate wolffian ducts |
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Definition
| male internal sex organs: Epididymus, vas defferens, seminal vesicles |
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| Androgen & antimullerian hormone produced in testes |
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Definition
| Masculanize & defeminize and causes mullerian ducts to recede. |
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| no hormones produced from gonads |
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| female internal reproductive organs develop: Fimbrae, Fallopian tubes, uterous, & upper 2/3 of vagina |
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| Labia, clitoris, and lower 1/3 of vagina develop |
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| Androgen insensitivity syndrome |
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Definition
XY individual (testes) with no androgen receptor.
- produces androgen & antimullerian hormone
- No Wolffian or Mullerian ducts
- no internal reproductive parts
- external female reproductive parts |
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| Persistant Mullerian duct syndrome |
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Definition
XY individual
-cant produce antimullerian hormone
-Androgen is present
-female internal parts, male external parts |
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only one X chromosome
-gonadal streaks
- Mullarian ducts will develope
- female internal and external parts
- implant uterous and hormones to start estrous cycle |
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when hypothalamus produces GnRh
- stimulates anterior pituitary to release gonadatropic hormone
- stimulates release of sex hormones |
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| estradoil, progesterone & a little androgen |
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| Androgen, Testosterone & a little estradoil |
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| helps uterous enlarge, hips widen, gain more vaginal tissue, breast growth |
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| penis & scrotum enlarge, voice deepen, more muscle tissue |
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| Androgen (adrenal glands) Male and female |
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Definition
| pubic hair, and body hair |
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| Androgen during neural development |
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Definition
| masculinization & defeminization of male behavioral patterns |
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| prenatal hormone exposure |
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Definition
| influences sexual orientation |
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| Congental Adrenal hyperplasia |
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Definition
genetic females secrete high amounts of androgen
- masculinizing effect on brain and external genitalia
- correlated with homosexual and bisexual behavior |
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| no defeminization or masculization- individuals look & feel female tend to be oriented towards male |
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chemicals that carry messages between animals, some effect reproductive behavior
- sensed in vomernasal organ and olfactory epithelium then project to olfactory bulb |
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| longer and longer estrous cycle( ovulation disappears) in absence of male |
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| odor of male will begin estrous cycle |
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| accellerated onset of puberty with exposure to male |
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affect some reproductive physiology
- synchronized menstral cycle
-shorter cycles when exposed to male
- androgen chemicals increase mood in female, decrease mood in males |
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