V2EX stratum spinosum

Stratum Spinosum

释义 Definition

棘层(表皮棘层):皮肤表皮从外到内的层次之一,位于基底层(stratum basale)之上、颗粒层(stratum granulosum)之下。该层的角质形成细胞通过桥粒紧密连接,在显微镜下细胞间连接呈“棘突”样外观,因此得名。

发音 Pronunciation

/strtm spnosm/

例句 Examples

The stratum spinosum helps the skin resist mechanical stress.
棘层有助于皮肤抵抗机械性拉扯与摩擦。

In psoriasis, keratinocyte activity can change across the stratum spinosum, affecting how quickly skin cells mature and shed.
在银屑病中,棘层内角质形成细胞的活动可能发生变化,从而影响皮肤细胞成熟与脱落的速度。

词源 Etymology

来自拉丁语:stratum 意为“层、铺展的层面”,spinosum 源自 spinosus,意为“多刺的、刺状的”。该层细胞因桥粒连接在显微镜下呈现“刺状/棘状”轮廓,所以称为“棘层”。

相关词 Related Words

文学与著名作品中的用例 Literary Works

  • Gray’s Anatomy(《格雷氏解剖学》)
  • Robbins and Cotran Pathologic Basis of Disease(《罗宾斯病理学》)
  • Junqueira’s Basic Histology(《容奎拉组织学》)
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