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 (15[1])channels unleashes a calcium cascade after a “kino” (15[1])(“KYE-no”) one of these structures is pushed over during sound transduction. Wnt (“wint”) and (*) Hedgehog signaling (10[1])components (-5[1])are localized (-5[1])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 is powered by these structures’ synchronized “beating.” For 10 points, name these hairlike microtubular appendages contrasted with flagella. ■END■ (10[1]0[1])