A lingual groove also encircled each filiform papilla root on the dorsal surface of the lingual body (Fig.
No lingual groove, rib, secondary papilla, or wall surrounded the filiform papilla root.
5), lingual grooves limited the sway of filiform papilla to a range of q (Fig.
One type was distributed on the rostral half of the lingual body, and a rib emerged from a lingual groove to make contact with the filiform papilla root (Fig.