1. In a normal adult, the red blood corpuscles are produced in the liver.   True   False   2. The right auricle of the heart receives oxygenated blood.   True   False   3. When the auricles of the heart contract, the ventricles relax, and vice versa.   True   False   4. During the ventricular systole, the blood enters the ventricles.   True   False   5. The cardiac veins carry blood to the walls of the heart.   True   False   6. The inferior vena cava carries blood from the upper parts of the body to the heart.   True   False   7. Plasma is a constituent of blood.   True   False