Spinal arteries

Spinal arteries are a group of arteries that supply blood to the spinal cord. They are part of the circulatory system and play a crucial role in maintaining the health and function of the spinal cord.

Anatomy

The spinal arteries consist of three main arteries: the anterior spinal artery and the two posterior spinal arteries.

The anterior spinal artery originates from the vertebral arteries and runs along the front of the spinal cord. It supplies blood to the anterior two-thirds of the spinal cord.

The posterior spinal arteries originate from the posterior inferior cerebellar artery or the vertebral arteries. They run along the back of the spinal cord and supply blood to the posterior one-third of the spinal cord.

In addition to these main arteries, there are also several segmental arteries that branch off from other arteries in the body and supply blood to specific segments of the spinal cord.

Function

The primary function of the spinal arteries is to supply oxygen and nutrients to the spinal cord. This is essential for the spinal cord to function properly and carry out its role in transmitting signals between the brain and the rest of the body.

Clinical significance

Damage or blockage of the spinal arteries can lead to serious conditions such as spinal stroke or spinal cord infarction, which can cause paralysis and other severe symptoms. Treatment for these conditions often involves surgery to repair or unblock the affected arteries.

See also

• Vertebral artery
• Spinal cord
• Circulatory system