Fig. 4
From: Functional morphological study on the tongue of the adult Egyptian geese (Alopochen egyptiacus)
Scanning electron micrographs (A-F) showing entoglossal bone and structure of the lingual root of the geese’s tongue. Note, the entoglossal bone (E), parakeratinized dorsal epithelium (KDE), median lingual groove (blue arrow), conical papillae of transverse row (TP), exfoliated cells (orange arrow head), mucosal elevation (mf), papillae bordering lingual root (orange arrow) and longitudinal grooves (white arrow head)