Aa. palpebrales laterales

Aa. palpebrales laterales are the lateral palpebral arteries, which are small blood vessels that supply blood to the eyelids. These arteries are branches of the lacrimal artery, which itself is a branch of the ophthalmic artery. The lateral palpebral arteries play a crucial role in providing oxygenated blood to the tissues of the upper and lower eyelids.

Anatomy

The lateral palpebral arteries originate from the lacrimal artery, which is a branch of the ophthalmic artery. The ophthalmic artery is a major artery that supplies blood to the orbit and surrounding structures. The lateral palpebral arteries run along the lateral aspect of the eyelids, providing blood to the orbicularis oculi muscle, the tarsal plates, and the skin of the eyelids.

Function

The primary function of the lateral palpebral arteries is to supply oxygenated blood to the tissues of the eyelids. This includes the muscles, skin, and other structures within the eyelids. Proper blood flow through these arteries is essential for maintaining the health and function of the eyelids.

Clinical Significance

Any disruption in the blood flow through the lateral palpebral arteries can lead to various medical conditions. For example, blockage or damage to these arteries can result in ischemia of the eyelid tissues, leading to symptoms such as pain, swelling, and in severe cases, tissue necrosis. Understanding the anatomy and function of these arteries is important for surgical procedures involving the eyelids and for diagnosing vascular conditions affecting the eye region.

Related Pages

• Lacrimal artery
• Ophthalmic artery
• Orbicularis oculi muscle
• Tarsal plates
• Eyelid