| pterygoid ridge of sphenoid bone | A rough ridge marking the angle of union of the temporal and infratemporal surfaces of the greater wing of the sphenoid bone. Synonym: crista infratemporalis, pterygoid ridge of sphenoid bone. (05 Mar 2000) |
|---|---|
| nasal ridge | An elevation on the lateral wall of the nasal cavity lying between the atrium of the middle meatus and the olfactory sulcus; it is formed by the mucous membrane covering the base of the ethmoidal crest of the maxilla. Synonym: nasal ridge. (05 Mar 2000) |
| superciliary ridge | A fullness extending laterally from the glabella on either side, above the orbital margin of the frontal bone. Synonym: arcus superciliaris, superciliary ridge. (05 Mar 2000) |
| supplemental ridge | A ridge on the surface of a tooth that is not normally present. (05 Mar 2000) |
| supraorbital ridge | The superior half of the orbital rim, which constitutes the curved superior border of the orbital opening, formed by the frontal bone. See: orbital rim. Synonym: margo supraorbitalis, supraorbital arch, supraorbital ridge. (05 Mar 2000) |
| dental ridge | The prominent border of a cusp or margin of a tooth. (05 Mar 2000) |
| oblique ridge | A ridge on the masticatory surface of an upper molar tooth from the mesiolingual to the distobuccal cusp. (05 Mar 2000) |
| oblique ridge of trapezium | A prominent ridge on the trapezium forming the lateral border of the groove in which runs the tendon of the flexor carpi radialis. Synonym: tuberculum ossis trapezii, oblique ridge of trapezium. (05 Mar 2000) |
| orbital ridge | The bony ridge beneath the eyebrow. (12 Dec 1998) |
| taste ridge | One of the ridge's surrounding the vallate papillae of the tongue. (05 Mar 2000) |
| temporal ridge | inferior temporal line, superior temporal line |
| transverse palatine ridge | A masticatory vestige on the hard palate; one of several irregular, sometimes branching, crests of soft tissue that radiate from the region of the incisive papillae at their most anterior parts and extend a slight distance backward, crossing the hard palate and reaching laterally for variable distances. Synonym: plica palatina transversa, ruga palatina, transverse palatine ridge. (05 Mar 2000) |
| transverse ridge | A crest or ridge on the occlusal surface of a tooth formed by the union of two triangular crests. Synonym: transverse crest, transverse ridge. (05 Mar 2000) |
| trapezoid ridge | The area on the inferior surface of the clavicle near its lateral extremity on which the trapezoid ligament attaches. Synonym: linea trapezoidea, trapezoid ridge. (05 Mar 2000) |
| triangular ridge | A crest or ridge which extends from the apex of a cusp of a premolar or molar tooth toward the central part of the occlusal surface. Synonym: triangular crest, triangular ridge. (05 Mar 2000) |