Fig. 3
From: Functional morphological study on the tongue of the adult Egyptian geese (Alopochen egyptiacus)
Scanning electron micrographs (A-F) showing the dorsum papillae, rostral and caudal groups of marginal lingual papillae of the geese’s tongue. Note, filiform papillae (red arrow), broad papillae (red arrow head), cylindrical papillae of rostral group (yellow arrow), haired papillae of rostral group (yellow arrow head), conical papillae of caudal group (green arrow) and filiform papillae of caudal group (green arrow head)