The epidermis and its appendages (hair follicles and associated glands) make up the external barrier of the body . Hair follicle is an important and complex epidermal appendage of skin , composed of hair shaft, inner root sheath and outer root sheath.
表皮和它的附属器(毛囊和相关腺体)构成了机体的外部屏障,而毛囊是皮肤重要而复杂的附属器,从内向外依次为毛干、内根鞘、外根鞘组成。
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The diameter of hair bulb positively correlated with that of hair shaft.
相关分析发现，毛干直径与毛球直径呈显著正相关。
Objective to develop a simple method to extract DNA from animal hair shaft.
目的建立一种简便的DNA提取方法，用于动物毛干的DNA抽提。
A bristle brush. Bristles stimulate the scalp and distribute sebum all the way down the hair shaft.
一根毛刷。可以刺激头皮，而且还能头皮上的皮脂顺着头发梳下来。
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