Left Internal Mammary Artery

The Left Internal Mammary Artery (LIMA) is a blood vessel located inside the chest, running along the inside of the breastbone. It supplies blood to the chest wall and nearby tissues. In heart surgery, especially coronary artery bypass grafting (CABG), the LIMA is often used to create a new pathway for blood to flow around blocked arteries. Its high durability and close proximity to the heart make it an ideal choice for bypass grafts, helping restore healthy blood flow and improve heart function.