Q1. What is the major function of neutrophils in the immune system?A. Production of antibodiesB. Secretion of histamineC. Phagocytosis of pathogensD. Blood clotting
Q2. Which of the following blood cells helps in allergic reactions and parasitic infections?A. NeutrophilsB. BasophilsC. EosinophilsD. Monocytes
Q3. Which of the following is incorrect about the lymphatic system?A. It helps in fat absorption.B. It transports oxygen to tissues.C. It plays a role in immune responses.D. It drains excess interstitial fluid.
Q4. What is the primary function of the pulmonary artery?A. Transport oxygenated blood to the bodyB. Carry deoxygenated blood to the lungsC. Supply oxygen to the heart muscleD. Return blood from the lungs to the heart
Q5. Which of the following is correct about hypertension?A. Hypertension is characterized by high blood pressure.B. It has no effect on cardiovascular health.C. It cannot be influenced by lifestyle changes.D. Hypertension increases the risk of heart disease and stroke.
Q6. Which of the following statements about arteries is incorrect?A. Arteries always carry oxygenated blood.B. Arteries have thick muscular walls.C. Arteries transport blood away from the heart.D. The aorta is the largest artery in the body.
Q7. Which part of the heart acts as the pacemaker?A. AV nodeB. Purkinje fibersC. Sinoatrial nodeD. Bundle of His
Q8. Which type of blood vessel is responsible for exchange of gases and nutrients?A. ArteriesB. VeinsC. CapillariesD. Venules
Q9. Which heart chamber receives oxygenated blood from the lungs?A. Right atriumB. Right ventricleC. Left atriumD. Left ventricle
Q10. Which of the following is incorrect about capillaries?A. Capillaries connect arterioles and venules.B. Capillaries have thick walls for strength.C. Capillaries allow exchange of gases and nutrients.D. Capillaries are the smallest blood vessels.