The sperm originate in gonial cells (spermatogonia) in the walls of seminiferous tubules.
精子产生于输精管壁
性母细胞（精原细胞）。
管,细管
管；细管管管；细精管The sperm originate in gonial cells (spermatogonia) in the walls of seminiferous tubules.
精子产生于输精管壁性母细胞（精原细胞）。
The diameter of dentinal tubule was not uniform due to peritubular dentine was demineralize.
横剖面见牙
管口因脱矿而呈现不规则。
Objective: To establish a duplicable and efficient culture method of human proximal tubule cells(PTC) in vitro.
创建一种重复性好、细胞量多人近端管细胞(PTC)培养方法。
Objective: To observe the relationship between the odontoblast process and the dentinal tubules.
观察成牙细胞突在牙管中分布。
Sugar solutions on the surface of exposed dentine cause water to be drawn out of the dentinal tubules causing which distorts the odontoblast causing pain.
[医务英语]《专业术语—口腔生理学术语O2(英文详解)》正文： Osmotic pressure - Water tends to move towards dense concentrations of ions.
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