Circulatory System and Respiratory Test (Level 1) Total: /94 Name: Part A. Multiple Choice ( /16) Identify the choice that best completes the statement or answers the question. ____ 1. Where are the cells that make up the sinoatrial node, or pacemaker, located? a. right atrium c. right ventricle b. left atrium d. left ventricle ____ 2. Compared with the walls of arteries, the walls of veins a. are thicker. c. lack valves. b. are thinner. d. have more resistance. ____ 3. The function of valves in the human circulatory system is to a. stimulate the heartbeat. c. prevent the backward flow of blood. b. accelerate the flow of blood. d. serve as a cushion to prevent friction. ____ 4. How much blood does the human body contain? a. 1–2 liters c. 8–10 liters b. 4–6 liters d. 12–14 liters ____ 5. Air is filtered, warmed, and moistened in the a. nose. c. lungs. b. alveoli. d. bronchioles. ____ 6. Air is forced into the lungs by the contraction of the a. alveoli. c. diaphragm. b. bronchioles. d. heart. ____ 7. Which body system acts as a transportation system? a. circulatory c. nervous b. respiratory d. excretory ____ 8. In the walls of the heart, there are two thin layers that form a sandwich around a thick layer of muscle called the a. epithelial tissue layer. c. connective tissue layer. b. pericardium. d. myocardium. ____ 9. Which of the following are the smallest of the blood vessels? a. Arteries c. lymphatic cells b. Veins d. capillaries ____ 10. Which of the following is correct about the composition of plasma? a. 90 percent water c. 10 percent water b. 50 percent water d. no water ____ 11. Which of the following blood cells contain hemoglobin? a. red blood cells c. platelets b. white blood cells d. all of the above ____ 12. The process by which oxygen and carbon dioxide are exchanged between cells, the blood, and air in the lungs is one type of a. systemic circulation. c. emphysema. b. respiration. d. cellular respiration. ____ 13. What structure serves as a passageway for both air and food? a. Pharynx c. larynx b. Trachea d. Bronchus ____ 14. What structure is the actual site of oxygen and carbon dioxide exchange? a. Alveoli c. larynx b. Trachea d. bronchiole tubes ____ 15. A tumor that develops in the lungs may be a sign of a. Bronchitis c. Lung cancer b. Heart Disease d. Emphysema ____ 16. The function of white blood cells is to a. Fight infection b. Carry waste away from body cells c. Increase blood pressure d. Carry carbon dioxide Part B. ( /7) Complete each statement. Figure 37–2 1. In Figure 37-2, the area labeled B represents the capillaries of a(an) ____________________. 2. In Figure 37-2, which labeled area(s) represent systemic circulation? __________________. 3. A genetic disorder called ____________________ results from a defective protein in the clotting pathway. 4. The iron-containing protein called ____________________ binds to oxygen in the lungs and transports it to tissues throughout the body, where the oxygen is released. 5. Inhaled air passes from the trachea to one of the two ____________________. 6. Breathing is such an important function that your ____________________ system will not let you have complete control over it. Part C. Short Answer ( /30) 1. List the main functions of the three types of blood cells. (3) 2. List in order the structures of the respiratory system through which air passes from the outside environment to the alveoli. (7) 3. What is blood pressure? Which type of vessel in the circulatory system experiences the most pressure? (2) 4. What is the basic function of the human respiratory system? (2) 5. What two veins bring blood back into the heart after it has circulated in the body? What areas in the body are they brining the blood from? (2) 6. Describe the flow of blood through the heart, starting with deoxygenated blood entering the right side of the heart. Please include all names of chambers, valves and blood vessels. (14) Part D. Diagrams Respiratory System (Diagram A /9) Figure 37–2 1. In Figure 37-2, which labeled structure is the diaphragm? 2. In Figure 37-2, what are two names for the structure labeled E? 3. In Figure 37-2, what is the label and name of the structure in which the exchange of gases takes place? 4. What is the label and name of the structure in Figure 37-2 that prevents the passage of food from the pharynx into the lungs? 5. In Figure 37-2, what is the label and name of the structure that carries air from the trachea to a lung? Diagram B – Blood Components ( Label the diagram of a human blood sample: /4) Diagram C - The Heart ( /17) Label the structures in the chart below the heart diagram. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10 11. 12. 13. 14. 15. Which structures (numbers) in the heart diagram above bring deoxygenated blood back into the heart? _______ Which structures (numbers) in the heart diagram above takes oxygenated blood to the body? ______ Matching /5 White Blood Cells: Match the WBC type with its function. Neutrophil ______ A. Fight Infection Macrophage _______ B. Produce Antibodies Lymphocyte _______ C. Release WBC growth factors B-Cell _________ D. Attack Cells Containing Viruses T-Cell ________ E. Use phagocytosis to engulf foreign substances Part E- Disorders of the Circulatory and Respiratory Systems ( 1. Using the diagram below – name the disorder and explain how it is caused: /6) Name: Cause: 2. What is the name of the respiratory system disorder that is genetic and characterized by a thick mucous build up in the bronchioles and pancreas? ________________________________ 3. What is the name of the circulatory system disorder characterized by a reduced number of platelets in the blood? ________________________________________ 4. Describe what happens to a person when they experience an asthma attack.