本型组织病理改变，主要是表皮角质层有显著角化不全，棘细胞层增厚，表皮突向下延展，深入真皮。
Pathological changes of the organization, mainly the epidermal cuticle significant parakeratosis, acanthosis cell layer thickening, epidermal sudden downward extension of in-depth dermis.
他们的肌肉或是直接与外骨骼的内部凸出，即表皮内突相连，或是间接的和与神经点相连的肌原纤维细丝连接着。
The muscles are attached either directly to internal protrusions of its external skeleton, called apodemes, or indirectly, by filaments attached to the connection points.
叶上表皮细胞常呈乳突状。
叶上表皮细胞常呈乳突状。
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