Motta P M, Andrews P M
J Anat. 1976 Nov;122(Pt 2):315-22.
Scanning electron microscopy was used to study the surface morphology of the rabbit endometrium during the secretory phase of the oestrous cycle. The free surfaces of ciliated and of inactive active secretory cells are described. Changes in secretory cell surface morphology resulting from accumulation and secretion of material involve the apparent retraction of microvilli and the formation of one or more bulbous protrusions of the cell's apical surface. These protrusions may be relatively smooth surfaced or exhibit long slender micro-extensions. The protrusions grow in size and are eventually pinched off. Loss of the bulbous protrusions often leaves behind crater-like invaginations of the cell's surface. Secretory cells adjacent to the endometrial glands are the first to exhibit signs of mucin accumulation and secretion. The single cilium of a secretory cell is not apparently affected by the secretory process. Signs of ciliated and secretory cell degeneration, and possible sloughing, are also described.
利用扫描电子显微镜研究了兔发情周期分泌期子宫内膜的表面形态。描述了纤毛细胞和非活性分泌细胞的游离表面。物质积累和分泌导致分泌细胞表面形态的变化，包括微绒毛明显回缩以及细胞顶端表面形成一个或多个球状突起。这些突起表面可能相对光滑，或呈现出细长的微延伸。突起尺寸不断增大，最终被掐断。球状突起消失后，细胞表面常常留下火山口状的凹陷。与子宫内膜腺体相邻的分泌细胞最先出现粘蛋白积累和分泌的迹象。分泌细胞的单根纤毛显然不受分泌过程的影响。还描述了纤毛细胞和分泌细胞变性以及可能的脱落迹象。
