spermatocyte n.【生物學】精母細胞 (＝sperm mother c...
n. 【生物學】精母細胞 (＝sperm mother cell)。 “first spermatocyte“ 中文翻譯： 初級精母細胞; 第一精母細胞“primary spermatocyte“ 中文翻譯： 初級精母細胞“second spermatocyte“ 中文翻譯： 次級精母細胞“secondary spermatocyte“ 中文翻譯： 次級精母細胞, 前精子細胞“spermatocyte i“ 中文翻譯： 初級精母細胞“spermatocyte unit“ 中文翻譯： 精母細胞單位“direct spermatocyte test“ 中文翻譯： 直接精母細胞試驗“spermatocyte of the first order“ 中文翻譯： 初級精母細胞“spermatocyte of the second order“ 中文翻譯： 次級精母細胞“spermatocytal“ 中文翻譯： 精母細胞的“spermatocystitis“ 中文翻譯： 精囊炎“spermatocystic“ 中文翻譯： 生精囊的“spermatocystectomy“ 中文翻譯： 精囊切除術“spermatocytic“ 中文翻譯： 精細胞的“spermatocyst grasping forceps“ 中文翻譯： 精囊把持鉗
spermatogenesis |
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At the beginning , the cytoplasm is evently distributed , then it is polar - distribution and at last it only remains between the apical cap and the sperm nucleus . during the period of spermatogonium , chromatin in the nucleus is in the shape of conglomeration and the nucleus is big ( i . e . the proportion of the nucleus to cytoplasm is bigger than spermatocyte ) . at the stage of primary spermatocyte , chromatin accumulates to sc complexity . the nucleus of the mature sperm takes the shape of a plate and filmentous chromatins exist freely in uncondensed nucleus 精子發生過程中，細胞器由少到多，到最后解體；細胞質從均勻分布，到精細胞期極性分布，最后殘留于成熟精子的頂帽和精核之間；細胞核在精原細胞期，染色質異固縮，胞核大，即核質比大于后續的精母細胞；在初級精母細胞中，染色質凝聚為sc復合體，到成熟精子，精核呈碟狀，染色質呈絲狀游離于非濃縮的核中。 |
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In postnatal 12 and ismonths testes , the number of postive cells persistently increased . in 24 months testes , some spermatocytes also displayed strong enos immunoreactivity . from 3 weeks to 3 months , the permeability of microvascular was on the trend of increase while it was on the trend of decrease from 12 months to 24 months . s . biood - testis barrier : the basal lamina of endothelium cells developed from thin , broken and unequal electronic density to thick , full and high electronic density with aging (巧1 ; 1 {性農i返_微1111扮通透性從3周齡至3月齡’ l ’增人趨勢， 12月齡到24月齡纖微l陽粉通透性: ，減小趨侖5 .血梁屏障:隨著增齡，毛細血憐內皮細胞的基膜由薄、斷續、電子密度不均逐漸發展為基脫垮、完招、 .毯子密度較高而均勻，厚度逐漸增加。 |
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The testis development stages are determined according to cell ' s morphological characteristics , its size and number and the varying extent of chromatic agglutination . the development of testis may be divided into five stages : ( 1 ) multiplication of spermatogonium ; ( 2 ) growth of spermatocytes ; ( 3 ) maturation of spermatocytes : ( 4 ) initial appearance of spermatozoa ; ( 5 ) complete maturation of spermatozoa ? the reproductive seasons cover from march to april 可根據各期細胞大小、數量多少、核染色質凝聚程度等將精巢的發育時期劃分為精原細胞增殖期、精母細胞生長期、精母細胞成熟期、精子開始出現期、精子完全成熟期共5個時期。 |
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In the present paper , some investigations on loxoblemmus doenitzi ( gryllidae ) are reported . in order to discover the meiosis of spermatomeres and spermiogenesis , slice - pressing method and improved phenol - fuchsin dyeing method are used . in the course of meiosis , primary spermatocytes directly enter metaphase ii , not through telophase i and prophase ii 本論文以直翅目、螽斯亞目、蟋蟀總科、蟋蟀科的多伊棺頭蟋( loxoblemmusdoenitzi )為材料，采用壓片法-改良苯酚品紅染色，研究了精子發生過程中的減數分裂階段和精子形成，發現初級精母細胞第一次減數分裂后不經過末期和前期直接進入中期。 |
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1 . spermatogenesis spermatogenesis can be devided into five stagesrspermatogonium , primary spermatocyte , secondary spermatocyte , spermatozon and sperm 精子發生精子發生可分為精原細胞、初級精母細胞、次級精母細胞、精細胞、精子五個階段。 |
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During the period of primary spermatocytes , we can observe the synaptonemal complexes ( stc ) 在初級精母細胞時期，可看到聯會復合體。 |
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Effects of two kinds of herbicides on chromosome aberration of spermatocytes in mice 兩種除草劑對小鼠精母細胞染色體畸變的影響 |