This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 695 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 695 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The hole between the esophagus and the air tube is the ..... A) Epiglottis. B) Glottis. C) Trachea. D) Bronchioles. Show Answer Correct Answer: B) Glottis. 2. Where does blood get oxygenated? A) Lungs. B) Heart. C) Brain. D) Liver. Show Answer Correct Answer: A) Lungs. 3. Pulmonary, coronary or systemic circulation? Circulation carries blood to and from the organs of the body. A) PULMONARY. B) SYSTEMIC. C) CORONARY. D) None of above. Show Answer Correct Answer: B) SYSTEMIC. 4. What is the energy source for a circuit? A) Light bulb. B) Battery. C) Wire. D) Switch. Show Answer Correct Answer: B) Battery. 5. ..... guard the body against infection, parasites, and bacteria. A) Red blood cells. B) White blood cells. C) Plasma. D) None of above. Show Answer Correct Answer: B) White blood cells. 6. Tiffany is investigating how fast it takes Hayden to react to different sounds. What is the independent variable in her experiment? A) How fast Hayden reacted. B) Different sounds. C) Types of music. D) Hayden. Show Answer Correct Answer: B) Different sounds. 7. Heart attacks always end in death? A) True. B) False. Show Answer Correct Answer: B) False. 8. Pulmonary circulation refers to the flow of blood between the heart and the A) Liver. B) Kidneys. C) Lungs. D) Body. Show Answer Correct Answer: C) Lungs. 9. What seals ruptures (tears) in blood vessels? A) Platelets and fibrin proteins. B) Red blood cells. C) Whites blood cells. D) None of above. Show Answer Correct Answer: A) Platelets and fibrin proteins. 10. Aorta carry the blood from the heart to all body parts except the two lungs A) True. B) False. Show Answer Correct Answer: A) True. 11. Which of these cells is responsible for blood clotting? A) Platelet. B) White blood cell. C) Red blood cell. D) Pathogen. Show Answer Correct Answer: A) Platelet. 12. Tiny blood cells that carry oxygen to all parts of the body. A) Plasma. B) Platelets. C) White Blood Cells. D) Red Blood Cells. Show Answer Correct Answer: D) Red Blood Cells. 13. Where does the pulmonary vein empty oxygen-rich blood into the heart? A) Left atrium. B) Right atrium. C) Left ventricle. D) Right ventricle. Show Answer Correct Answer: A) Left atrium. 14. The part of the blood that helps you stop bleeding ..... A) Plasma. B) White blood cells. C) Red blood cells. D) Platelets. Show Answer Correct Answer: D) Platelets. 15. Since heart attacks are rare in dogs & cats, which of these are likely the cause of sudden death in animals? A) Strokes. B) Occult heart failure. C) All of these. D) Hemoabdomen. Show Answer Correct Answer: C) All of these. 16. What is the first stop in the digestive system? A) Mouth. B) Esophagus. C) Stomach. D) Small intestine. Show Answer Correct Answer: A) Mouth. 17. Receives blood as it returns from the body cells A) Right atrium. B) Left atrium. C) Right ventricle. D) Left ventricle. Show Answer Correct Answer: A) Right atrium. 18. A structure that is composed of different kinds of tissue to perform a specific job A) Organ. B) Tendon. C) Tissue. D) Ligament. E) Joint. Show Answer Correct Answer: A) Organ. 19. Mammals have ..... ventricle(s) A) One. B) Two. C) Three. D) Four. Show Answer Correct Answer: B) Two. 20. Letter H is known as the A) Pulmonary Artery. B) Interior Vena Cava. C) Pulmonary Vein. D) Superior Vena Cava. Show Answer Correct Answer: C) Pulmonary Vein. ← 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