− | The Paranasal Sinuses are ventilated spaces connected to the [[Nasal Cavity - Anatomy & Physiology|nasal cavity]]. | + | The paranasal sinuses are ventilated spaces connected to the [[Nasal Cavity - Anatomy & Physiology|nasal cavity]]. They develop as blind ending pouches between the lamina of the [[Skull and Facial Muscles - Anatomy & Physiology#Bones of the Skull|bones of the skull]]. |