Final answer:
The left anterior descending artery (LAD), a branch of the left coronary artery, supplies blood to the left ventricle, lateral wall of the left ventricle, anterior surface of the left ventricle, and part of the right ventricle.
Step-by-step explanation:
The left coronary artery is responsible for supplying blood to the left side of the heart, including the left atrium and ventricle, and the interventricular septum. The left anterior descending artery (LAD), a major branch of the left coronary artery, serves the left ventricle, the anterior surface of the left ventricle, and part of the right ventricle. Specifically, the LAD travels along the anterior interventricular sulcus and provides blood to these regions. Additionally, the circumflex artery, which is another branch of the left coronary artery, contributes to the blood supply of the lateral wall of the left ventricle. Therefore, although the right coronary artery does play a role in the heart's blood supply, it is not directly involved in the areas mentioned in the question.