Tags: Anatomical Structure, Bone.
Each of the two paired sphenoidal sinus are contained within the body of the sphenoid vary in size and shape; owing to the lateral displacement of the intervening septum they are rarely symmetrical. They cannot be palpated during an extraoral examination.The following are their average measurements: vertical height 2.2 cm.; transverse breadth 2 cm.; antero-posterior depth 2.2 cm.
