This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 52 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 52 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is the function of human blood? A) Maintains pH and temperature. B) Transports nutrients and gases. C) None of the above. D) All of the above. Show Answer Correct Answer: D) All of the above. 2. What is known as platelets, and in one drop of blood has from 250, 000 to 400, 000 of it, and it is important for blood clotting to stop bleeding? A) Leukocytes. B) Thrombocytes. C) Erythrocytes. D) None of above. Show Answer Correct Answer: B) Thrombocytes. 3. Blood types are characterized by the presence or absence of ..... A) Antibodies in Plasma. B) The Rh factor. C) Antigens on the cell Surface membrane of the RBCs. D) None of above. Show Answer Correct Answer: C) Antigens on the cell Surface membrane of the RBCs. 4. MOST veins carry ..... blood. A) Oxygen-rich, or oxygenated. B) Oxygen-poor, or deoxygenated. Show Answer Correct Answer: B) Oxygen-poor, or deoxygenated. 5. How many chambers does a human heart have? A) 2. B) 4. C) 6. D) 3. Show Answer Correct Answer: B) 4. 6. Microscopic vessels where exchange of important substances/wastes occur; walls are 1 cell thick. A) Veins. B) Arteries. C) Capillaries. D) Lymph nodes. Show Answer Correct Answer: C) Capillaries. 7. When this chamber contracts, it pushes blood through the tricuspid valve A) Right atria. B) Right ventricle. C) Left atria. D) Left ventricle. Show Answer Correct Answer: A) Right atria. 8. Oxygen rich blood goes back to the heart through the pulmonary veins and enters the left atrium A) 1. B) 2. C) 3. D) 4. E) 5. Show Answer Correct Answer: D) 4. 9. Which on of the following is not a function of the blood A) Transport Co2. B) Transport Nutrients. C) Form blood clots. D) Help control body temperature. Show Answer Correct Answer: C) Form blood clots. 10. The pulsation is felt due to the elastic outer layer A) Arteries (pulses) [6]. B) Venous Vessels (Back) [6]. Show Answer Correct Answer: A) Arteries (pulses) [6]. 11. What digestive organ releases enzymes that help break down starches, proteins, and fats in the small intestine? A) Stomach. B) Large intestine. C) Liver. D) Pancreas. Show Answer Correct Answer: D) Pancreas. 12. Name any two yoga asanas A) Tandasana. B) Vrikshana. C) Both. D) Ureter. Show Answer Correct Answer: C) Both. 13. Which chamber of the heart pumps oxygen-poor blood to the lungs? A) Left ventricle. B) Left atrium. C) Right atrium. D) Right ventricle. Show Answer Correct Answer: D) Right ventricle. 14. ..... is a yellowish liquid which is 90% water. It carries the nutrients and waste products. A) Plasma. B) Platelets. C) Arteries. D) Veins. Show Answer Correct Answer: A) Plasma. 15. Are in charge of blood coagulation A) White blood cells. B) Red blood cells. C) Plasma. D) Blood. E) Platelets. Show Answer Correct Answer: E) Platelets. 16. Why are capillaries' total cross-sectional area much larger than arteries? A) To increase blood pressure. B) To carry blood from the heart. C) To reduce blood flow. D) To allow slow exchange of substances with tissues. Show Answer Correct Answer: D) To allow slow exchange of substances with tissues. 17. Which of the following answers correctly sequences the pathway food takes from the beginning to end? A) Mouth, esophagus, stomach, small intestine, large intestine. B) Mouth, esophagus, stomach, large intestine, small intestine. C) Mouth, stomach, esophagus, small intestine, large intestine. D) Mouth, stomach, esophagus, large intestine, small intestine. Show Answer Correct Answer: A) Mouth, esophagus, stomach, small intestine, large intestine. 18. Flaps of connective tissue, called ....., are located between the atria and ventricles of the heart to maintain pressure and prevent blood from being leaked back into the heart. A) Contractions. B) Veins. C) Valves. D) Arteries. Show Answer Correct Answer: C) Valves. 19. Blood is made up of A) Water and white blood cells. B) Cells and plasma. C) Nutrients and oxygen. D) White and red blood cells. Show Answer Correct Answer: B) Cells and plasma. 20. The number of heartbeats at rest is about ..... per minute. A) 50 beats. B) 70 beats. C) 10 beats. D) 100 beats. Show Answer Correct Answer: B) 70 beats. ← PreviousNext →Related QuizzesScience QuizzesCirculatory System Quiz 1Circulatory System Quiz 2Circulatory System Quiz 3Circulatory System Quiz 4Circulatory System Quiz 5Circulatory System Quiz 6Circulatory System Quiz 7Circulatory System Quiz 8Circulatory System Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books