Background: The distribution of ciliated cells in the tracheal epithelium of common marmosets was evaluated.
Methods: Light and scanning electron microscopy of tracheal epithelium was performed.
Results: Ciliated cells were concentrated in cartilage-free areas and virtually absent in cartilage-supported epithelial regions.
Conclusions: Heterogeneous distribution of ciliated cells in the trachea has to be considered when using animal models for translational respiratory research approaches.