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:
Arteries typically carry oxygenated blood, which is bright red in colour. The exception is the pulmonary artery which carries deoxygenated blood from the heart to the lungs. Arteries divide into arterioles which are of a similar structure, however the walls are not as thick as in arteries as the pressure within the vessels has lessened by the time blood reaches them. The arterioles then divide further into capillaries.