1. Blood aids in regulating the body temperature.   True   False   2. The coronary arteries originate from the base of the aorta.   True   False   3. The pulse rate decreases during strenuous physical work.   True   False   4. The spleen is located behind the stomach.   True   False   5. The spleen is a lymphatic organ.   True   False   6. Pericardium is the double-walled membranous covering that protects the heart.   True   False   7. The word 'pulse' is related to veins.   True   False