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Nose Anatomy- Nasal Blood Supply

Help us Improve our content Support us on Patreon :   / medsimplified   LIKE US ON FACEBOOK : fb.me/Medsimplified Follow on Instagram for the Flashcards :   / medsimplified   the nose and sinuses are supplied by the internal carotid artery facial and internal maxillary branches of the. the superior part of the nose receives the anterior and posterior ethmoidal arteries - branches of the ophthalmic artery which itself, is a branch of the internal carotid. the rest of the nose and sinuses is supplied by the greater palatine, sphenopalatine, and superior labial arteries, all of which are branches of the maxillary artery which itself, is a branch of the external carotid. significantly there is a plexus of vessels on the anterior septum - Little's area or Kiesselbach's plexus - where branches of both the internal and external carotid artery anastamose; this is a frequent site for epistaxis. venous drainage of the nose and sinuses is via the ophthalmic and facial veins, and the pterygoid and pharyngeal plexuses. Significantly, drainage is such that infection may spread via the veins to the cavernous sinus. The fleshy external end of the nasal septum is sometimes also called columella. The nasal septum contains bone and hyaline cartilage.[2] The nasal septum is composed of five structures: perpendicular plate of ethmoid bone vomer bone cartilage of the septum crest of the maxillary bone crest of the palatine bone. ~-~~-~~~-~~-~ CHECK OUT NEWEST VIDEO: "Nucleic acids - DNA and RNA structure "    • Nucleic acids - DNA and RNA structure   ~-~~-~~~-~~-~