Palpebral arteries

Palpebral arteries are a group of arteries that supply blood to the eyelids. They are branches of the ophthalmic artery, which is itself a branch of the internal carotid artery. The palpebral arteries are divided into two main groups: the superior and inferior palpebral arteries.

Superior Palpebral Arteries

The superior palpebral arteries are a pair of arteries that supply the upper eyelid. They branch off from the ophthalmic artery and run along the upper edge of the orbital septum, a thin membrane that separates the eyelid from the rest of the orbit. The superior palpebral arteries also supply blood to the conjunctiva, the clear tissue that covers the front of the eye and lines the inside of the eyelids.

Inferior Palpebral Arteries

The inferior palpebral arteries are another pair of arteries that supply the lower eyelid. Like the superior palpebral arteries, they branch off from the ophthalmic artery and run along the lower edge of the orbital septum. The inferior palpebral arteries also supply blood to the conjunctiva.

Clinical Significance

The palpebral arteries play a crucial role in maintaining the health of the eyelids and the conjunctiva. Damage to these arteries, such as from trauma or surgery, can lead to ischemia (lack of blood flow) and potentially serious complications, including necrosis (tissue death) and vision loss.

See Also

• Ophthalmic artery
• Internal carotid artery
• Orbit (anatomy)
• Conjunctiva