Breast arteries and veins

Arterial circulation of the breast comes from three sources.


1.İnternal thoracic artery in two, three and four perforating branches of the anterior chest wall of the sternum by piercing the edge of the medial and middle parts of the breast feeds. These are the largest veins of the breast. Greatly swollen during lactation.

2. Posterior intercostal arteries, the lateral branches: two, three, four and fifth intervals, posterior intercostal branches of the intercostal arteries give mammarian. Parenchyma to the front and lateral branches, while infusing the skin of the breast, the back goes to the branches to the muscles. Swollen during lactation.


3. More branches of the axillary artery feeds the upper quadrant, and the tail of the breast. Lateral thoracic artery, superior thoracic artery, the pectoral branch of the artery, including artery has four main branches. We export% 60 of the breast is approximately perforating branches of internal thoracic artery, lateral thoracic artery in 30% of the feed. However, all arteries are common among the anastomoses.


Veins of the breast


Axillary venous flow in general is true of the breast. Anastomotic veins around the nipple ring in a 'circulus venosus' form. Hematogenous metastasis of breast tumors is through the veins, venous structures is of great importance in this respect. Superficial and deep veins of the breast is divided into two groups. Superficial veins, located just below the superficial fascia. Both breast and internal mammary veins, superficial veins do with each other anastomosis senescence. Deep veins are discussed in three groups. Perforating branches of internal mammary vein is the largest group. These veins, Vena Innominata poured into the same party. This road is one way of lung metastatic embolism. The second group because of the deep breast, pectoral muscles and the chest wall is from the branches, vena ancillaries senescence. In this way the second way is responsible for lung metastatic embolism. Intercostal veins, the superior vena cava via the vena azigosa and from there a third way which embolilerini metastatic lung.


Another way to metastasis of breast carcinoma vertebral vein (Batson plexus). This plexus extends from the base of skull vertebrae surrounding the sacrum. Thoracic, abdominal and pelvic organs, with veins of this plexus of venous channels in each direction of blood flow. This metastatic emboli through blood vessels and central nervous system reaches the vertebrae. The internal mammary veins, the axillary and subclavian vein and intercostal veins also drained through the system.


Superficial and deep venous system to form anastomoses with each other within the breast parenchyma.

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