1. During the ventricular systole, the blood enters the ventricles.   True   False   2. In a normal adult, the red blood corpuscles are produced in the liver.   True   False   3. Which fluid fills up the space between all human body cells?   intracellular fluid   extercellular fluid   intercellular fluid   extracellular fluid   Hint Half-n-half Clue   4. The _______ of the heart pumps the blood up to the lungs only.   left auricle   right auricle   left ventricle   right ventricle   Half-n-half Clue   5. The inferior vena cava carries blood from the upper parts of the body to the heart.   True   False   6. During the atrial systole, the openings of the pulmonary vein and the vena cava are _______.   open   closed   7. The process of circulation of blood in the heart begins with the _______ of the auricles of the heart.   contraction   relaxation