Perforating branches of internal thoracic artery
(Redirected from Perforating branches of the internal thoracic artery)
Branches of the internal thoracic artery that supply the anterior thoracic wall
Blood vessel
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Latin | rami perforantes arteriae thoracicae internae |
Greek | |
TA98 | |
TA2 | |
FMA | |
Details | |
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Artery | |
Vein | |
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Lymphatic drainage | |
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The perforating branches of the internal thoracic artery are small arteries that branch from the internal thoracic artery and supply blood to the anterior thoracic wall, including the mammary glands in females. These branches play a crucial role in the vascularization of the chest wall and are of particular importance in surgical procedures such as breast reconstruction and coronary artery bypass grafting.
Anatomy[edit | edit source]
The internal thoracic artery, also known as the internal mammary artery, arises from the subclavian artery and descends along the inner surface of the anterior thoracic wall. As it travels downward, it gives off several branches, including the perforating branches.
Origin[edit | edit source]
The perforating branches originate from the internal thoracic artery at various levels along its course. Typically, there are several perforating branches on each side of the thorax.
Course[edit | edit source]
These branches pierce the intercostal muscles and the pectoralis major muscle to reach the skin and subcutaneous tissues of the anterior thoracic wall. In females, they also supply the mammary glands, contributing to the blood supply of the breast tissue.
Distribution[edit | edit source]
The perforating branches are distributed along the anterior thoracic wall, with the most prominent branches being those that supply the mammary glands. These branches are larger in females due to the increased vascular demands of the breast tissue.
Clinical significance[edit | edit source]
The perforating branches of the internal thoracic artery are significant in several clinical contexts:
- In breast surgery, particularly in breast reconstruction following mastectomy, the blood supply from these branches is crucial for the viability of flaps used in reconstructive procedures.
- In coronary artery bypass grafting, the internal thoracic artery is often used as a graft, and understanding the anatomy of its branches is important to avoid complications.
Also see[edit | edit source]
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