Alveolar ridge
The alveolar ridge is an anatomical structure in the mouth separating the hard palate from the upper teeth. It can be felt as a region of small ridges between the back of the teeth and the roof of the mouth. Consonants that are produced with constrictions at the alveolar ridge have an alveolar place of articulation.
References
- Roach, Peter. 2004. English Phonetics and Phonology. Cambridge University Press.