猫下颌下腺腺泡细胞中黏液滴包膜与管腔质膜的融合。
Fusion of the envelope of mucous droplets with the luminal plasma membrane in acinar cells of the cat submandibular gland.
作者信息
Tandler B, Poulsen J H
出版信息
J Cell Biol. 1976 Mar;68(3):775-81. doi: 10.1083/jcb.68.3.775.
Abstract
The release of mucus from acinar cells of the cat submandibular gland was examined by electron microscopy. The limiting membrane of mucous droplets fuses with the luminal plasma membrane to form a five-layered contact. This is converted to a three-layered membrane (unit membrane) by avulsion of the plasmalemma. Attenuation and rupture of this membranous barrier permits the contents of the mucous droplets to flow into the lumen.
摘要
通过电子显微镜检查了猫下颌下腺腺泡细胞中黏液的释放情况。黏液滴的限制膜与管腔质膜融合形成五层接触结构。通过质膜的撕裂，这种结构转变为三层膜（单位膜）。这种膜性屏障的变薄和破裂使黏液滴的内容物流入管腔。
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