cell cortex 细胞皮质
质膜内面的一层特化的细胞质。是与质膜的原生质面(protoplasmic surface, 即PS面)紧密结合的一层凝胶状物质,其中含有较高浓度并互相结合成网状的蛋白质(动物细胞以肌动蛋白为主,负责细胞表面的运动
)。
这些网状的蛋白质与跨膜糖蛋白的胞内区紧密结合,构成质膜的支架,因此被特称为“皮质细胞骨架”(cortical cytoskeleton)
Cell cortex means the region of a cell that lies just beneath the plasma membrane and often, but not always, contains a network of actin filaments and associated proteins. It can also be called cell periphery or peripheral cytoplasm.