Which artery arises from the axillary artery and contributes significantly to these anastomoses?
The circumflex scapular artery branches from the subscapular artery (from the third part of the axillary artery) and becomes the third contributing part of the scapular anastomoses. It courses around the lateral border of the scapula to enter the infraspinous fossa.
What is an artery anastomosis?
From Wikipedia, the free encyclopedia. A circulatory anastomosis is a connection (an anastomosis) between two blood vessels, such as between arteries (arterio-arterial anastomosis), between veins (veno-venous anastomosis) or between an artery and a vein (arterio-venous anastomosis).
What is the importance of scapular anastomosis?
The pectoral girdle has a rich plexus of arterial vessels that anastomose around the scapula and its muscles known as the scapular anastomosis. It functions to allow blood to flow around the scapula and shoulder joint if there is injury or occlusion.
What does the axillary artery supply?
The axillary artery is a large muscular vessel that travels through the axilla. It is responsible for carrying oxygen-rich blood to the upper limb, as well as to parts of the musculocutaneous system of the scapula and upper lateral thorax.
What does the axillary artery become?
The axillary artery supplies the walls of the axilla and related regions and continues as the brachial artery, to supply to more distal parts of the upper limb. The axillary artery is also divided into three segments based on its relationship to the pectoralis minor muscle: proximal, posterior, and distal.
Why is arteriovenous anastomosis important?
The AVAs play an important role in temperature regulation in humans in their thermoneutral zone, which for a naked resting human is about 26°C to 36°C, but lower when active and clothed. From the temperature control center in the hypothalamus, bursts of nerve impulses are sent simultaneously to all AVAs.
Which arteries participate in scapular anastomosis?
The scapular anastomosis is a system connecting certain subclavian artery and their corresponding axillary artery, forming a circulatory anastomosis around the scapula.
Why is the axillary artery important?
What does the lateral thoracic artery supply?
The lateral thoracic artery supplies the axillary lymph nodes, serratus anterior, pectoralis major, pectoralis minor and subscapularis muscles. Additionally, it can provide blood supply to the breast in females.