Circulation and Respiration Multiple Choice 1. Which of the following is NOT part of the cardiovascular system? a. Blood b. Heart c. Lungs d. Blood vessels 2. The fluid part of blood is a. Made up of red blood cells b. Made up of white blood cells c. Formed from platelets d. Plasma 3. Which part of your blood fights pathogens, such as bacteria? a. Red blood cells b. White blood cells c. Platelets d. Plasma 4. What causes the lub-dub, lub-dub sound of a beating heart? a. Contraction of the heart muscle b. Blood filling the heart’s chambers c. Closing of the heart valves d. Squeezing of the ventricles 5. Blood is brought back to the heart by the a. Veins b. Arteries c. Capillaries d. Lymph nodes 6. Diastolic pressure is the pressure on a. Artery walls when the ventricles relax b. Artery walls when the ventricles contract c. Vein walls when the ventricles contract d. The heart when the atria contract 7. Which organ in the lymphatic system can be thought of as the recycling center for red blood cells? a. lymph node b. thymus c. spleen d. tonsil 8. The large tube that carries air from the larynx to the lungs ic called the a. Trachea b. Bronchus c. Esophagus d. Pharynx 9. How are breathing and respiration related? a. they are the same thing b. breathing is one part of respiration c. respiration is one part of breathing d. they are unrelated processes 10. In some individuals, inhaled irritants may cause the bronchioles to constrict and secrete mucus, producing the symptoms of a. emphysema b. asthma c. lung cancer d. pneumonia Fill in the blank 11. Nutrients and oxygen pass easily through the thin walls of ___________ 12. The particles and extra fluid absorbed into the lymphatic system are called 13. Lymphatic tissues at the back of your tongue, throat, and nasal cavities are called ________________________ 14. Vocal cords stretched across the opening of your __________________ vibrate when air flows between them. 15. Tiny sacs at the end of each bronchiole called ____________________ exchange oxygen and carbon dioxide with the surrounding capillaries. Short Answer: 16. What is the difference between pulmonary circulation and systemic circulation in the cardiovascular system? 17. Walton has a blood pressure of 110/65. What do the two numbers mean? 18. What body process produces the carbon dioxide you exhale? 19. Why do you think there are hairs in your nose? 20. When a person is not feeling well, sometimes a doctor will examine samples of the person’s blood to see how many white blood cells are present. Why would this information be useful? 21. How is the function of the lymphatic system related to the function of the cardiovascular system? 22. How are lymph nodes similar to the spleen? 23. How is the function of the respiratory system related to that of the cardiovascular system? 24. Describe the path that air travels as it moves through the respiratory system. 25. What is the difference between respiration and cellular respiration?