feather germ 中文意思是什麼
feather germ
解釋
羽胚-
Proliferation of cells in a ring around the feather germ creates a cylindrical depression, the follicle, at its base
環繞羽芽有一圈細胞不斷增生,在基部形成圓柱狀凹陷,稱為毛囊。 -
Feather growth begins with a thickening of the epidermis called the placode, which elongates into a tube ? the feather germ [ see illustration above ]
首先,表皮上的基板開始增厚,並拉長成一根管子,稱為羽芽(見上方羽毛的成長過程) 。
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