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性-人类性的基本层面
Sex
- Basic Aspects of Human Sexuality
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LH =黄体生成素；FSH=卵泡刺激素。在女性：LH在产生雌激素和孕激素方面起重要的作用，FSH刺激卵细胞（卵泡）的发育。在男性：LH在产生睾丸激素方面起重要作用，FSH在产生精子方面起重要作用。
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LH = Luteinizing Hormone; FSH = Follicle Stimulating Hormone. In females: LH plays an important role in the productions of estrogens and progesterone, FSH stimulates the development of egg cells (ova). In males: LH plays an important role in the production of testosterone, FSH plays an important role in the production of sperm.
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激素的作用：插图
“性激素”的产生有一个反馈系统：在脑下部区域（下丘脑和垂体）的两个腺体产生激素刺激性腺（卵巢和睾丸），反过来，性腺也影响着这两个腺体。女性和男性的各种激素的综合作用造就了两个性别之间的次级性征和其他各种差别。
The Role of Hormones: Illustration
The production of “sex hormones” represents a feedback system:
Two glands in the lower brain region (hypothalamus and pituitary gland) stimulate the gonads (ovaries in females; testicles in males) which, in turn, influence their stimulators. The different mixture of hormones in females and males produces the secondary sexual characteristics as well as other differences between the sexes.
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