毛球之上的细胞形成毛发，产生由分化的表皮细胞构成的同心环状区，形成内根鞘和外根鞘。
The hair is formed from cells just above the bulb, which also give rise to concentric zones of differentiated epithelial cells destined to form the inner and outer root sheaths.
组织病理学检查示肿瘤呈分叶状增生，与表皮相连，主要由向外毛根鞘分化的鳞状上皮组成，周边基底细胞排列成栅栏状。
They were mainly consisted of epithelia differentiated towards cells of the outer root sheath, and the peripheral basal cells of the tumor lobules showed palisading arrangement.
叶毛密度和可溶性糖含量与不选择性呈负相关，游离氨基酸和表皮层细胞厚度与不选择性呈正相关。
Both pubescence density and soluble sugar were negatively related to non-preference, while the free amino acids and thickness of epidermal cell positively.
毛(毛状体)：是植物表皮细胞突起形成的结构，其形状多种多样，通常具有明显的种属特征。
Hair (trichome) an outgrowth from a plant epidermal cell. Plant hairs may take a wide variety lf forms, often characteristic of particular species or genera.
结果：动物表皮有一层角化过度的角质层，毛干消失，毛球结构不正常，毛囊内为一些角化物质，有的变为空囊腔。
Results: There is a excessively keratinized layer in the animal epidermis, loss of hair shaft, abnormal structure of hair bulbs.
透射电镜观察表明，棉铃虫触角上起嗅觉作用的毛形感器和锥形感器均由表皮壁、鞘细胞、感受器淋巴液和感觉神经细胞树突等结构组成。
Sensillum trichodeum and sensillum basiconicum, the main chemical odor receptors on antennae of Helicoverpa armigera, consist of cuticular wall, sheath cells, sensillum lymph and dendrites.
表皮细胞的大小、气孔的保卫细胞长度和T型-毛的顶端长度等，这些只是数量特征，在本族分类上意义不大。
The sizes of epidermis cell, the lengths of stomatal guard cells and of the terminal cells of T-hair are only quantitative characters, but not of much significances in systematics.
表皮细胞的大小、气孔的保卫细胞长度和T型-毛的顶端长度等，这些只是数量特征，在本族分类上意义不大。
The sizes of epidermis cell, the lengths of stomatal guard cells and of the terminal cells of T-hair are only quantitative characters, but not of much significances in systematics.
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