apical membrane 中文意思是什麼
apical membrane
解釋
頂膜-
The apical membrane of the epithelial cells is apparently essential.
上皮細胞的頂膜顯然是必要的。 -
The ultrastructure of the merozoites of eimeria tenellawas observed and discribed. the pellicle consist of two layer membranes, the outer membrane was a continous covering enclosing the whole merozoites, while the inner pellicular complex is interrupted at the anterior and the micropore, and thicken to form the polar ring and micropore. there are 24 microtubules under the pellicle of the merozoite which originated from the polar ring, all of them are connected with the polar ring, and extend alongside the inner pellicular complex to the middle of the merozoite. the head of the merozoite consists of a conoid, an apical vesicule and polar ring. the conoid is a hollow truncated cone. the conoid and spical vesicule can stretch and contract. there are three or more rhoptry and a lot of micronemes. the nucleus has nucleolus. and two layer membranes
利用透射電鏡對柔嫩艾美耳球蟲裂殖子的超微結構進行了觀察描述.柔嫩艾美耳球蟲裂殖子的表膜由外膜和內膜復合體兩層組成，外膜連續，內膜復合體在頭部斷開形成極環，在其它部位斷開形成微孔；裂殖子的膜下微管24根，起始於極環，向後延伸至細胞核處；裂殖子的頭部由頂泡、錐體和極環組成，錐體和頂泡可以伸縮；柔嫩艾美耳球蟲裂殖子棒狀體3個以上，微線數量很多，二者都由電子緻密的結構組成；細胞核位於裂殖子的中後部，外被雙層膜，有電子緻密的核仁和染色質 -
2. sperm ultrastructure the sperm is nonflagellated and composed of a main body in which including nucleus n apical cap and a little cytoplasm and a single spike extending from the convex surface of the apical cap, which consists of about twenty radial fibrillae on which exhibiting periodic cross - striations. the concave surface of the apical cap surrounds the little cytoplasm which is highly condensed and has n ' t any organella and sperm nucleus, which is uncondensed and composed of filamentous materials and many membrane - bound vesicles
外形呈圖釘樣，由主體部和棘突組成，主體部包括帽狀體、細胞質帶和精核。帽狀體由約20根輻射狀排列的纖絲組成，纖絲具橫紋。其凸面延伸成棘突，棘突內纖絲是帽狀體內纖絲的延續，亦具橫紋。
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