During C. elegans oocyte meiosis I cytokinesis and polar body extrusion. cortical actomyosin is locally remodeled to assemble a contractile ring that forms within and remains part of a much larger and actively contractile cortical actomyosin network. This network both mediates contractile ring dynamics and generates shallow ingressions throughout the oocyte cortex during polar body ex... https://www.steedaes.shop/product-category/valve-covers/