The primary cilium is a narrow organelle located at the surface of the cell in contact with the extracellular environment. Once underappreciated, now is thought to efficiently sense external ...

The secretory organelles micronemes and rhoptries mediate the first steps of invasion. Both secrete their contents through the apical complex which provides an apical opening in the parasite’s ...

Adult ependymal cells’ apical enrichment of actin in centriolar plaques aids ... 2007; Al Omran et al., 2017). Cilia-and flagella-associated protein 221 (CFAP221), also known as primary ciliary ...

The closest living relatives of animals, the choanoflagellates, display a polarized cell architecture (with an apical flagellum encircled by microvilli) that resembles that of epithelial cells and ...