Figure 1From: Xenopus embryonic epidermis as a mucociliary cellular ecosystem to assess the effect of sex hormones in a non-reproductive contextPhylogeny of mucociliary epithelia. The scheme includes all taxa, which contain at least one species that has been reported to have a mucociliary epithelium formed by MC, MS and MR cell populations, or by intermediate cell types, independently of the organ or tissue context.Back to article page