Scapular anastomosis

Scapular Anastomosis is a network of blood vessels that supply the scapula, the shoulder blade in the human body. This network is formed by the subscapular artery, the suprascapular artery, and the circumflex scapular artery.

Etymology

The term "Scapular Anastomosis" is derived from the Latin word 'Scapula' meaning 'shoulder blade' and the Greek word 'Anastomosis' meaning 'outlet' or 'passage'.

Function

The primary function of the Scapular Anastomosis is to ensure a continuous supply of blood to the scapula and surrounding muscles, even in cases where the main artery is blocked or damaged. This is achieved through a process known as collateral circulation, where blood is rerouted through smaller vessels.

Anatomy

The Scapular Anastomosis is formed by three main arteries:

• The subscapular artery, which is the largest branch of the axillary artery and supplies blood to the lower part of the scapula.
• The suprascapular artery, which originates from the thyrocervical trunk and supplies blood to the upper part of the scapula.
• The circumflex scapular artery, which is a branch of the subscapular artery and supplies blood to the back of the scapula.

Clinical Significance

Understanding the Scapular Anastomosis is crucial in surgical procedures involving the shoulder, as damage to these arteries can lead to significant blood loss and potential complications. It also plays a role in the diagnosis and treatment of conditions such as thoracic outlet syndrome and shoulder impingement syndrome.

See Also

• Anastomosis
• Scapula
• Subscapular artery
• Suprascapular artery
• Circumflex scapular artery