Jurisdictions throughout Canada and the US have ministries or departments, respectively, of corrections, correctional services, or similarly-named agencies. Corrections is also the name of a field of academic study concerned with the theories, policies, and programs pertaining to the practice of corrections.
Heart & Blood Vessels: Your Coronary Arteries. The heart receives its own supply of blood from the coronary arteries. Two major coronary arteries branch off from the aorta near the point where the aorta and the left ventricle meet. These arteries and their branches supply all parts of the heart muscle with blood. The left main coronary artery branches into:
1 The aorta is the main artery that carries oxygen-rich blood pumped from the left side of the heart out to the body. 2  The coronary arteries are the other important arteries attached to the heart. 3  They carry oxygen-rich blood from the aorta to the heart muscle, which must have its own blood supply to function. The pulmonary valve is in the right side of the heart, between the right ventricle and the entrance to the pulmonary artery, which carries blood to the lungs. 2  The mitral (MI-trul) valve is in the left side of the heart, between the left atrium and the left ventricle.