Final answer:
The vascular supply for the nasal septum consists of the anterior/superior nasal septum supplied by branches of the external carotid artery, and the posterior/inferior nasal septum supplied by branches of the internal carotid artery.
Step-by-step explanation:
The vascular supply for the nasal septum consists of two main sources: the
anterior/superior nasal septum is supplied by branches of the external carotid artery, while the
posterior/inferior nasal septum is supplied by branches of the internal carotid artery.