00:02 Posteriorly the hard palate finishes off via the palatine bone. 00:08 The palatine bone has horizontal and perpendicularly oriented plates. 00:14 So the horizontal plate is the portion that actually contributes to the hard palate. 00:20 Superiorly we have the nasal surface. 00:24 And inferiorly, we have the palatine surface. 00:27 And so this is part of what's separating the oral cavity from the nasal cavity. 00:32 In the midline this groove is therefore called the nasal crest. 00:36 Superiorly and inferiorly it's called the palatine crest. 00:41 We also have a groove here called the greater palatine groove. 00:45 Through which many structures will pass. 00:48 We also have the vertically oriented perpendicular plates. 00:52 And of course medially they will have a nasal surface because they're interacting with the posterior aspect of the nasal cavity. 01:01 Laterally, it would be the maxillary surface. 01:05 So turning around we again have a little crest for nasal concha called the nasal crest. 01:11 In an area where the ethmoid will be participating called the ethmoidal crest. 01:17 We have openings here called the inferior nasal meatus. 01:22 And that's going to be the opening behind or below the inferior concha. 01:28 Similarly there's a middle nasal meatus, which will sit inferior to the middle nasal concha. 01:36 Finally, there's a superior nasal meatus sitting just below and behind the superior nasal concha. 01:44 And again laterally is going to be the surface for the maxillary bone. 01:50 Laterally we have various processes called the pyramidal processes. 01:55 And superiorly, up towards the orbit we have orbital processes. 02:00 More posteriorly towards the sphenoid we have the sphenoidal processes.
The lecture Palatine Bone by Darren Salmi, MD, MS is from the course Skull.
Which processes belong to the palatine bone?
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