During early mouse development, a fluid-filled lumen inflates the embryo. Membrane protrusions called inverse blebs have been found to form at cell–cell contacts. Cycles of inverse bleb filling and unloading act as hydraulic pumps and contribute to the formation of the lumen.

中文翻译：

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反向气泡膜突起在早期小鼠胚胎内泵送液体


在小鼠早期发育过程中，充满液体的管腔会使胚胎膨胀。已发现在细胞间接触处形成称为反向气泡的膜突起。反向气泡填充和卸载的循环充当液压泵，有助于管腔的形成。