Supratrochlear artery

Supratrochlear artery is a small artery in the human body that originates from the ophthalmic artery. It is responsible for supplying blood to the medial part of the forehead.

Etymology

The term "supratrochlear" is derived from the Latin words "supra," meaning above, and "trochlea," referring to a pulley-like structure. In this context, it refers to the artery's location above the trochlea of the superior oblique muscle.

Anatomy

The supratrochlear artery arises from the ophthalmic artery while it is within the orbit. It exits the orbit above the medial palpebral ligament and ascends on the forehead, supplying the skin, muscles, and the periosteum. It anastomoses with the supraorbital artery, a branch of the internal carotid artery, and the contralateral supratrochlear artery.

Clinical significance

The supratrochlear artery is of clinical importance in several surgical procedures, including forehead lifts and browplasty. Knowledge of its exact location can help prevent complications such as bleeding or ischemia.

Related terms

• Ophthalmic artery
• Forehead
• Superior oblique muscle
• Medial palpebral ligament
• Periosteum
• Supraorbital artery
• Internal carotid artery
• Contralateral
• Browplasty

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