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epidermis    音标拼音: [,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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  • Epidermis - Wikipedia
    The epidermis serves as a barrier to protect the body against microbial pathogens, oxidative stress (UV light), and chemical compounds, and provides mechanical resistance to minor injury
  • 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
  • ÉPIDERMIS Definition Meaning - Merriam-Webster
    Epidermis includes the Greek prefix epi-, meaning "outer;" thus, the epidermis overlies the dermis, or inner layer of skin The epidermis itself consists of four or five layers; the outermost layer is made of dead cells, which are being shed continuously
  • Epidermis | The Histology Guide
    This epidermis of skin is a keratinized, stratified, squamous epithelium Cells divide in the basal layer, and move up through the layers above, changing their appearance as they move from one layer to the next
  • Epidermis Explained: Layers, Functions, and Skin Protection
    The epidermis is the outermost layer of the skin and the body’s first line of defense against the outside world It helps prevent water loss, blocks many harmful substances and microorganisms, protects against everyday environmental exposure, and continually replaces damaged or shed cells
  • Epidermis - Wikipedia, la enciclopedia libre
    La epidermis, en los vertebrados, es la capa externa de la piel, 1 un epitelio escamoso estratificado , 2 compuesto de queratinocitos que proliferan en su base y se diferencian progresivamente, a medida que son empujados hacia el exterior
  • Skin Layers Explained: Epidermis, Dermis Hypodermis
    The epidermis is the thin, outermost layer of the skin It provides the first physical barrier between the body and the environment, limiting water loss while helping keep out pathogens, irritants, and other potentially harmful substances





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