1) gonadal stage
性腺分期
2) gonad develop by stages
性腺发育分期
3) gonadal cycle
性腺周期
4) Gonad differentiation
性腺分化
1.
Gonad differentiation and the effects of temperature on sex determination in the rice frog Rana limnocharis;
泽蛙的性腺分化及温度对性别决定的影响
2.
The origin and migration of the primordial germ cells (PGCs) and the gonad differentiation of loach were studies by light microscope.
通过光学显微镜对泥鳅原始生殖细胞（Ｐｒｉｍｏｒｄｉａｌｇｅｒｍｃｅｌｓ，即ＰＧＣｓ）的发生、迁移和性腺分化进行初步研究，发现泥鳅ＰＧＣｓ最初出现在原肠晚期预定中胚层内，体节中胚层与侧板中胚层分离后而位于侧板中胚层。
5) gonadogenesis
性腺分化
1.
After obtaining larvae of loach by artificial fertilization,the gonadogenesis and differentiation of loaches were studied by light microscope.
从性腺分化开始,将要发育为卵巢的性腺还表现为体积快速增大,向体腔中间靠拢,横截面变宽;而将要发育为精巢的性腺则呈两端尖中间稍突的梭形,增生并不明显。
2.
Obtaining larvae of Paramisgarnus dabryanus by artificial fertilization,the gonadogenesis and differentiation of larvae were studied by light microscope.
从性腺分化开始,将要发育为卵巢的性腺还表现为体积快速增大,向体腔中间靠拢,横截面变宽,而将要发育为精巢的性腺则呈两端尖中间稍突的梭形,增生并不明显,这些特征可能与雌雄性腺的发育和生殖细胞的分化速度有关,可以作为大鳞副泥鳅性腺早期分化的形态特征。
6) glandular differentiation
腺性分化
补充资料：高促性腺激素性性腺功能低下
高促性腺激素性性腺功能低下
系由于卵巢发育不全或功能低下，不能合成和分泌足够的性激素，干扰了对垂体和下丘脑负反馈调节，使促性腺激素分泌增加，导致促卵泡素(FSH)和黄体生成素(LH)水平升高，E2水平低下。此种情况以先天发育异常多见，常表现为性幼稚、如Turner综合征。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条