Superficial temporal vein

Gray557

Superficial Temporal Vein

The Superficial Temporal Vein is a significant vein located within the scalp. It plays a crucial role in the drainage of blood from the lateral aspects of the scalp and the temporal region of the head, merging with the maxillary vein to form the retromandibular vein. This vein is part of the venous system of the head, which is essential for returning deoxygenated blood back to the heart.

Anatomy

The Superficial Temporal Vein originates from the scalp's lateral side, above the ear, where it forms from the confluence of smaller veins. It runs anteriorly, crossing over the temporalis muscle and beneath the temporal fascia. It is easily palpable in this region. As it progresses downwards, it joins with the maxillary vein to form the retromandibular vein, which subsequently contributes to the formation of the external jugular vein or directly drains into the internal jugular vein, depending on the individual's venous anatomy.

Function

The primary function of the Superficial Temporal Vein is to drain blood from the lateral parts of the scalp and the forehead. This venous drainage is crucial for removing deoxygenated blood and metabolic waste products from the scalp region. Efficient venous drainage is essential for maintaining the metabolic health of the scalp tissues and supporting the arterial blood supply to the area.

Clinical Significance

The Superficial Temporal Vein is of particular interest in several medical and surgical procedures. It is often used as a site for arteriovenous fistula creation in patients undergoing long-term dialysis. Additionally, its prominence and accessibility make it a common site for the harvesting of veins in bypass surgery and for the injection of local anesthetics in certain head and neck surgeries.

Injuries to the Superficial Temporal Vein can lead to significant bleeding due to its location and the high vascularity of the scalp. Moreover, its proximity to the temporal artery can sometimes complicate diagnostic procedures, as the pulsations of the artery can be mistaken for venous engorgement.

See Also

• Vein
• Scalp
• Temporal region
• Maxillary vein
• Retromandibular vein
• External jugular vein
• Internal jugular vein