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epidermis    音標拼音: [,ɛpəd'ɚməs]
n. 表皮,上皮

表皮,上皮

epidermis
n 1: the outer layer of the skin covering the exterior body
surface of vertebrates [synonym: {epidermis}, {cuticle}]

Periostracum \Per`i*os"tra*cum\, n.; pl. {Periostraca}. [NL.,
fr. Gr. peri` around ? shell of a testacean.] (Zool.)
A chitinous membrane covering the exterior of many shells; --
called also {epidermis}.
[1913 Webster]


Epidermis \Ep`i*der"mis\, n. [L., fr. Gr. ?; ? over ? skin,
fr. ? to skin. See {Tear}, v. t.]
1. (Anat.) The outer, nonsensitive layer of the skin;
cuticle; scarfskin. See {Dermis}.
[1913 Webster]

2. (Bot.) The outermost layer of the cells, which covers both
surfaces of leaves, and also the surface of stems, when
they are first formed. As stems grow old this layer is
lost, and never replaced.
[1913 Webster]

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英文字典中文字典相關資料:
  • Epidermis - Wikipedia
    The epidermis serves as a barrier to protect the body against microbial pathogens, oxidant stress (UV light), and chemical compounds, and provides mechanical resistance to minor injury
  • What Are Epidermal Cells and What Do They Do? - ScienceInsights
    The epidermis is organized into distinct layers, or strata, which represent different stages of cellular maturation and differentiation The process begins in the deepest layer, the stratum basale, where new cells are constantly generated through mitosis
  • Anatomy of the Epidermis with Pictures - Verywell Health
    The epidermis is the uppermost layer of your skin It is responsible for creating skin tone and protecting against toxins and infection Within the epidermis, there are four major layers of cells called keratinocytes that provide structural support for the skin
  • Epidermis | Skin Layers, Keratinocytes Melanocytes | Britannica
    Epidermis, in zoology, protective outermost portion of the skin There are two layers of epidermis, the living basal layer, which is next to the dermis, and the external stratum corneum, or horny layer, which is composed of dead, keratin-filled cells that have migrated outward from the basal layer
  • Layers of the Skin – Diagram, Structure, Function
    The epidermis is the thin, outermost layer of the skin, providing a protective barrier against environmental hazards Composed primarily of keratinized stratified squamous epithelium Contains no blood vessels; nutrients diffuse from the underlying dermis
  • Layers of the Epidermis: Anatomical Structure and Protective . . .
    The epidermis is the outermost layer of the skin, serving as a protective barrier against environmental threats





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