This document discusses anatomical landmarks in the maxilla and mandible that are important for denture design. In the maxilla, limiting structures include the labial and buccal frenums and vestibules. Primary stress-bearing areas are the hard palate and posterolateral slopes, while secondary areas include rugae, tuberosities, and alveolar tubercles. Relief areas like the incisive papilla and cuspid eminence should not concentrate load. In the mandible, limiting structures are similar frenums and vestibules, while support comes from the buccal shelf and residual ridge. Relief areas are the crest, mental foramen, genial tubercle, and torus