Sacral vein

Sacral Vein

The sacral veins (shown in red) are part of the body's venous system.

The Sacral Vein is a part of the human body's venous system that drains the sacrum and the coccyx, which are located at the base of the spine. The sacral veins are paired and are located on either side of the median sacral crest.

Structure

The sacral veins begin at the back of the sacrum and run downwards to join the internal iliac veins. They receive tributaries corresponding to the branches of the median sacral artery.

Function

The primary function of the sacral veins is to return deoxygenated blood from the sacrum and coccyx back to the heart. They work in conjunction with the circulatory system to ensure the efficient removal of waste products from these areas.

Clinical significance

Due to their location, sacral veins can be affected by conditions such as sacral venous plexus thrombosis and sacral venous plexus engorgement. These conditions can lead to pain and discomfort in the lower back and may require medical intervention.

See also

• Venous system
• Sacrum
• Coccyx
• Internal iliac veins