V2EX stratum granulosum

Stratum Granulosum

Definition / 定义

stratum granulosum颗粒层。指表皮(尤其是厚皮)从外到内的分层之一,位于棘层(stratum spinosum)之上、透明层(stratum lucidum,若存在)之下。该层角质形成细胞内常见角质透明颗粒(keratohyalin granules),与皮肤角化与屏障形成过程有关。该术语在一些语境下也可用于描述某些上皮组织中的“颗粒状细胞层”。

Pronunciation / 发音

/strtm rnjulosm/

Examples / 例句

The stratum granulosum is thicker in the skin of the palms and soles.
掌跖部位的皮肤中,颗粒层通常更厚。

As keratinocytes move upward into the stratum granulosum, they accumulate keratohyalin granules and begin forming the skin’s protective barrier.
当角质形成细胞向上进入颗粒层时,会逐渐积累角质透明颗粒,并开始参与形成皮肤的保护性屏障。

Etymology / 词源

源自拉丁语:stratum 意为“层、铺层”,granulosum 来自 granulum(“小颗粒”)的形容词形式,合起来字面意思就是“有颗粒的那一层”,对应显微镜下可见的颗粒样结构。

Related Words / 相关词

Literary Works / 文学作品

  • Gray’s Anatomy(《格雷氏解剖学》)
  • Junqueira’s Basic Histology(《Junqueira 基础组织学》)
  • Wheater’s Functional Histology(《Wheater 功能组织学》)
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