1. 'Systolic pressure' is the term that indicates the lower limit of blood pressure.   True   False   2. There are four kinds of valves in the heart.   True   False   3. The word 'pulse' is related to veins.   True   False   4. The pulse rate decreases during strenuous physical work.   True   False   5. Blood pressure is exerted by the blood flowing through the veins on the walls of the veins.   True   False   6. Which of the following is not a function of the spleen?   Spleen produces blood platelets.   Spleen produces red blood corpuscles.   Spleen produces lymphocytes.   Spleen stores blood.   Hint Half-n-half Clue   7. Which is the largest artery in the human body?   renal artery   hepatic artery   aorta   pulmonary artery   Half-n-half Clue