näsartären

Näsartären, also known as the nasal artery, refers to a network of blood vessels supplying oxygenated blood to the nasal cavity. These arteries originate from branches of the external carotid artery. Specifically, the anterior and posterior ethmoidal arteries, branches of the ophthalmic artery (which itself is a branch of the internal carotid artery), contribute significantly to the nasal vasculature. Additionally, the sphenopalatine artery, a terminal branch of the maxillary artery, also plays a role in supplying blood to the posterior and superior parts of the nasal septum and lateral walls.

The rich vascularization of the nasal cavity is crucial for its functions, including warming and humidifying inhaled air. The intricate arrangement of these arteries, particularly in the anterior part of the nasal septum known as Kiesselbach's plexus (or Little's area), makes it a common site for nosebleeds (epistaxis). The numerous small vessels in this area are easily damaged by trauma, dryness, or inflammation. Understanding the anatomy and blood supply of the nasal cavity is important for medical professionals, especially in the fields of otolaryngology and rhinology, for diagnosing and treating conditions affecting the nose.