This video describes features of basal / inferior aspect of human skull bone which is known as Norma Basalis . Norma basalis is divided in 3 parts : Anterior , Middle and Posterior . It elaboartes features present within Middle part of Norma basalis like Medial and Lateral pterygoid plate , Foramen spinosum , Foramen Rotundum , Foramen Ovale , Foramen Lacerum , Emissary sphenoidal foramen , Innominate canaliculus , Carotid canal , Spine of Sphenoid , infratemporal crest , Tympanic Plate , Sulcus Tubae , Pharyngeal Tubercle , Vomer , Palatino Vaginal canal , Vomero vaginal canal , ala of sphenoid , Scaphoid fossa , Pterygoid hammulus , greater wing of sphenoid , Petrous part of Temporal bone etc.

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