Abstract
Cilia are microtubule-based extensions of the plasma membrane of cells. These extensions detect extrinsic cues that are crucial for carrying out a myriad of developmental and homeostatic signaling cascades. Cilia have evolved diverse means to mediate signaling cascades in a cell-type specific manner. In this article, I have summarized the conserved mechanisms of formation of cilia and their structural and functional specialization for light detection.
Keywords: Basal body, Cilia, Photoreceptor, Retina.