HomeTissues Tissues The color coding illustrated below is used on gene expression illustrations throughout this site. To browse by tissue type, select one of the following categories: Epithelium Oral epithelium Nasal epithelium Midline epithelium Basal epithelium Peridermal cells Mesenchyme Nasal region Oral region Anterior region Posterior region Palatal bone primordium Muscles of the soft palate Levator Tensor Palatoglossus Palatopharyngeous Uvula