1. The word 'pulse' is related to veins.   True   False   2. Blood pressure is exerted by the blood flowing through the veins on the walls of the veins.   True   False   3. The spleen is a lymphatic organ.   True   False   4. Pericardium is the double-walled membranous covering that protects the heart.   True   False   5. 'Systolic pressure' is the term that indicates the lower limit of blood pressure.   True   False   6. A portal vein begins in the form of capillaries and ends in the form of capillaries too.   True   False   7. There are four kinds of valves in the heart.   True   False