1. The alveolar ridges contain the sockets ( alveoli ) of the teeth. 2. It appears only on the gingiva or on an edentulous ( without teeth ) alveolar ridge . 3. The tomial sheath is large, and inside an alveolar ridge is distinct and well formed. 4. Maldivian retroflex segments,,, and are produced at the very rear part of the alveolar ridge . 5. The prepalate is at 6, between the very back of the alveolar ridge and the hard palate. 6. Edentulous jaw ridges tend to resorb progressively over the years, especially the alveolar ridge of the lower jaw. 7. They have no alveolar ridge separating them from the snapping turtles of the genus " Elseya ". 8. The tongue-tip begins in retroflex position, but then moves forward rapidly, flapping against the alveolar ridge . 9. Others, especially speakers of the Molotschna dialect, instead strike the tongue against the alveolar ridge and spell them and. 10. If the cleft extends into the maxillary alveolar ridge , the gap is usually corrected by filling the gap with bone tissue.