These structures name a cell type marked by FOXJ1 (“fox-J-one”), which is required for these structures’ biogenesis. In the absence of one ligand, GLI3 (“glee-three”) is cleaved into a repressor due to the enrichment of Smoothened in these structures. The opening of MET channels unleashes a calcium cascade after a “kino” (“KYE-no”) one of these structures is pushed over during sound transduction. Wnt (“wint”) and (*) Hedgehog signaling components are localized from the transitional zone to these structures by IFT particles. “Primary” types of these structures lack the inner doublets of the 9+2 (“nine-plus-two”) axoneme found in a related type of these structures. An eponymous “clearance” that removes mucus from the respiratory tract (-5[1])is powered by these structures’ synchronized “beating.” For 10 points, name these hairlike microtubular appendages contrasted (10[1])with flagella. (10[1])■END■