1. The pulse rate decreases during strenuous physical work.   True   False   2. Which of the following is not a function of the spleen?   Spleen produces blood platelets.   Spleen produces red blood corpuscles.   Spleen stores blood.   Spleen produces lymphocytes.   Hint Half-n-half Clue   3. The word 'pulse' is related to veins.   True   False   4. The auricles of the heart have thicker walls than the ventricles.   True   False   5. Blood pressure is exerted by the blood flowing through the veins on the walls of the veins.   True   False   6. The spleen is a lymphatic organ.   True   False   7. A portal vein begins in the form of capillaries and ends in the form of capillaries too.   True   False