1. Which fluid fills up the space between all human body cells?   intracellular fluid   extercellular fluid   intercellular fluid   extracellular fluid   Hint Half-n-half Clue   2. In a normal adult, the red blood corpuscles are produced in the liver.   True   False   3. When the auricles of the heart contract, the ventricles relax, and vice versa.   True   False   4. The right auricle of the heart receives oxygenated blood.   True   False   5. The left auricle of the heart receives _______ blood from the lungs.   oxygenated   deoxygenated   6. The _______ of the heart pumps the blood up to the lungs only.   right auricle   left auricle   left ventricle   right ventricle   Half-n-half Clue   7. The process of circulation of blood in the heart begins with the _______ of the auricles of the heart.   relaxation   contraction