Spermiation—the release of mature spermatozoa from Sertoli cells into the seminiferous tubule lumen—occurs by the disruption of an anchoring device known as the apical ectoplasmic specialization ...
However, in situations where closure of the wound is by lamellipodial crawling, such as in tissue-culture wounds made in monolayers of MDCK epithelial cells, forward sweeping of the epithelium is ...