Fundamental anatomy of Cilia, microvilli, and flagellae? help please?

Structurally, each cilium comprises a microtubular backbone - the ciliary axoneme - surrounded by plasma membrane .Motile cilia are characterized by a typical ’9+2’ architecture with nine outer microtubule doublets and a central pair of microtubules (e.g bronchi). Primary cilia appear typically as single appendages microtubules on the apical surface of cells and lack the central pair of microtubules (e.g. in kidney tubules).