1. 'Systolic pressure' is the term that indicates the lower limit of blood pressure.   True   False   2. The auricles of the heart have thicker walls than the ventricles.   True   False   3. The pulse rate decreases during strenuous physical work.   True   False   4. The word 'pulse' is related to veins.   True   False   5. Which of the following is not a function of the spleen?   Spleen produces blood platelets.   Spleen stores blood.   Spleen produces lymphocytes.   Spleen produces red blood corpuscles.   Hint Half-n-half Clue   6. The aorta originates from the _______ of the heart.   left ventricle   right ventricle   left auricle   right auricle   Half-n-half Clue   7. There are four kinds of valves in the heart.   True   False