00:02 Now let's look at the parietal bones. 00:05 So we have these lines called the superior temporal lines and inferior temporal lines. 00:10 That have to do with eventually a muscle called the temporalis in this area. 00:16 And there's this fossa or depression there. 00:19 That is going to give space for this temporalis muscle. 00:23 Which is a wide flat powerful muscle. 00:25 Because it's involved in chewing or mastication. 00:30 If we look on the interior surface, we see some grooves. 00:34 And here we see a groove for the superior sagittal sinus. 00:38 Which is one of the dural venous sinuses of the coverings of the brain. 00:43 And here we see that superior sagittal sinus sitting in that groove. 00:50 The parietal bone has borders with the frontal bone. 00:55 And it has a sagittal border where it borders its opposite parietal bone. 00:59 So the left and right parietal bones meet here. 01:03 We also have the inferior squamosal border so the squamous portion of the temporal bone sits there. 01:10 We also have the occipital border with the occipital bone.
The lecture Parietal Bone by Darren Salmi, MD, MS is from the course Skull.
The parietal bone forms a groove for which dural venous sinus?
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