Definition: irregularly shaped bone occupying a central position in the cranial base; described as consisting of a central portion, or body housing the sphenoidal sinus, and six processes: two greater wings, two lesser wings and two pterygoid processes; articulates with the occipital, frontal, ethmoid, and vomer, and with the paired temporal, parietal, zygomatic, palatine, and sphenoidal concha bones.
Synonym(s): os sphenoidaleTA, sphenoid2TA
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