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Sphenopalatine Artery
Cardiovascular System

Sphenopalatine Artery

Arteria sphenopalatina

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Origin

The sphenopalatine artery is a terminal branch of the third part of the maxillary artery as it passes through the pterygopalatine fossa.

Course

The sphenopalatine artery passes into the nasal cavity through the sphenopalatine foramen, an opening between the pterygopalatine fossa and the nasal cavity.

Branches

The sphenopalatine artery divides into a posterior lateral nasal and posterior septal branches as it emerges through the sphenopalatine foramen.

Supplied Structures

The sphenopalatine artery is the main arterial contributor to the mucosa to the nose. Additionally, it supplies structures surrounding the nose and the nasopharynx.

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Sphenopalatine Artery

ScienceDirect image

Long sphenopalatine arteries course medially to nourish the roof of the nasal cavity and anastomose with inferior ethmoidal branches of the OA (Lasjaunias et al., 2001).

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