primary spermatogonium 中文意思是什麼
primary spermatogonium
解釋
初級精原細胞- primary : adj 1 第一的，最初的，初級的；初等的；基本的；基層的。2 主要的，為首的，第一位的。3 原始的，根本...
- spermatogonium : n. （pl. -nia ）【動物；動物學】精原細胞。adj. -gonial
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According to the changes of the structure of chromatin and the morphology of cell, the process of the typical spermatogenesis of cipangopaludina chinensis can be divided into five stages : spermatogonium, primary spermatocyte, secondary spermatocyte, spermatid and mature sperm
中國圓田螺典型精子發生時，根據染色質和細胞形態的變化，可將其發生分為以下五個時期：精原細胞、初級精母細胞、次級精母細胞、精細胞和成熟精子。 -
There are five developmental stages in the spermatogenesis, namely are primary spermatogonium, secondary spermatogonium, primary spermatocytes, secondaty spermatocytes and spermatids. the spermatids develop into sperm via the process of spermiogenesis. there exist cell junctions between two spermatids
電子顯微鏡觀察表明：大眼鱖的精子發生和形成過程，經歷了初級精原細胞，次級精原細胞，初級精母細胞，次級精母細胞和精子細胞階段。 -
During the stages of primary and secondary spermatogonium, components of the nucleolus, called chromatoid bodies ( cb ), are excluded from the nucleus
精原細胞階段，部分核仁物質外排，成為擬染色質小體，其上聚集一群線粒體，構成「線粒體區」 。 -
The results reveal that there are two types of spermatogonium, primary spermatogonia ( sg1 ) and secondary spermatogonia ( sg2 ), in the early developmental stage of testes
生精細胞之間存在著間橋連接。大眼鱖具有初級精原細胞、次級精原細胞兩種類型精原細胞。 -
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，到最後解體；細胞質從均勻分佈，到精細胞期極性分佈，最後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，即核質比大於后續的精母細胞；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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