Dorsal nasal artery

The arteries of the face and scalp. (Dorsal nasal artery labeled at center right.)

The Dorsal Nasal Artery (DNA) is a small artery in the human body that supplies blood to the upper part of the nose. It is a terminal branch of the Ophthalmic Artery and is also known as the nasal artery.

Anatomy

The Dorsal Nasal Artery originates from the ophthalmic artery, which is itself a branch of the Internal Carotid Artery. After branching off, the DNA travels towards the nose, passing through the Medial Palpebral Ligament and the Lacrimal Sac. It then ascends to the root of the nose, where it anastomoses with its counterpart from the opposite side and with the Angular Artery, a branch of the Facial Artery.

Function

The primary function of the Dorsal Nasal Artery is to supply blood to the skin and muscles of the upper part of the nose. It also provides some blood supply to the Ethmoidal Sinus and the Frontal Sinus.

Clinical Significance

Knowledge of the Dorsal Nasal Artery is important in surgical procedures involving the nose, such as Rhinoplasty. Damage to the artery during surgery can lead to complications such as Necrosis or Hematoma.

See Also

• Ophthalmic Artery
• Internal Carotid Artery
• Angular Artery
• Facial Artery

References

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