1. Normal blood pressure (BP) in a 25-year-old man is _______ mm Hg.   120/80   170/100   140/90   100/60   Hint Half-n-half Clue   2. This statement is not true :   Pulmonary veins carry oxygenated blood.   Right ventricle pumps blood to various parts of the body.   Left side of the heart contains oxygenated blood.   Valves are present between auricles and ventricles to prevent backflow of blood.   Hint       3. Which of these does not cause an increase in pulse rate?   Exercise   Anxiety   Sleep   Fever   Hint       4. This statement is not true regarding hemoglobin :    Hemoglobin deficiency leads to anemia.   Hemoglobin carries oxygen.    Hemoglobin is found in RBCs.   Percentage of hemoglobin in a healthy young man is 10/12 gm%.   Half-n-half Clue   5. Identify the blood vessel 'A' in this diagram.     Carotid artery   Pulmonary artery   Inferior vena cava   Aorta   Half-n-half Clue   6. Which blood vessels carry blood from heart to various parts of the body?   Veins   Capillaries   Arteries   All of these   Half-n-half Clue   7. This statement is true regarding platelets :   Platelets do not contain nucleus.   Platelets contain many nuclei.   Platelets contain an ill-defined nucleus.   Platelets contain single nucleus.   Hint