Posterior external jugular vein

The posterior external jugular vein is a vein in the human body that is part of the venous system of the neck. It is one of the tributaries of the external jugular vein.

Anatomy

The posterior external jugular vein originates from the occipital region of the scalp. It descends along the posterior border of the sternocleidomastoid muscle, which is a prominent muscle in the neck. The vein then courses downward and eventually drains into the external jugular vein.

Function

The primary function of the posterior external jugular vein is to drain blood from the superficial structures of the posterior scalp and neck. It plays a role in the venous return from these areas to the heart.

Clinical Significance

The posterior external jugular vein is often used as an anatomical landmark in various medical procedures involving the neck. It is also important in the context of venous access and central venous catheterization.

Related Structures

• External jugular vein
• Internal jugular vein
• Subclavian vein
• Sternocleidomastoid muscle
• Venous system

See Also

• Jugular veins
• Venous drainage of the head and neck
• Cardiovascular system