SUMMATIVE TEST IN RESPIRATORY SYSTEM

A. Multiple Choice. Write the letter of the correct answer. (2 pts)

1. Which system is responsible for the exchange of oxygen and carbon dioxide between the air and the cells?a. Circulatory c. excretoryb. Digestive d. respiratory

2. Which organ serves to filter and warm the air entering it?a. Air sacs c. diaphragmb. Bronchus d. nasal cavity

3. Where does exchange of gases take place?a. Alveoli c. bronchiolesb. Bronchi d. diaphragm

4. The chemical process in which oxygen and carbon dioxide are exchanged between the outside air and the cells is calleda. Breathing c. exhalingb. Inhaling d. respiration

5. The function of the respiratory system includes which of the following?I. Bringing air containing oxygen into the bodyII. Releasing carbon dioxide into the atmosphereIII. Exchanging oxygen with carbon dioxide in blood cellsIV. Transporting oxygen to cells throughout the bodya. I only c. I, II, and IIIb. I and II d. I, II, III, and IV

6. Inhalinga. Occurs when the diaphragm contractsb. Occurs when the diaphragm relaxesc. Is the exchange of gas between blood cells and the

lungsd. Is when oxygen in the air is drawn into the body and

carbon dioxide is released from the body7. Ventilation or breathing involves which organs?

a. The larynx, pharynx, and tracheab. The lungs, larynx, pharynx, and tracheac. The heart and lungs, larynx, pharynx, and trachead. The heart, blood and lungs, larynx, pharynx, and

trachea8. Gas exchange occurs

a. In the lungs, between the blood and the airb. In the alveoli of the lungs, between the peripheral

capillaries and the lung cellsc. In the alveoli of the lungs, between the peripheral

capillaries and the body cellsd. All of the above

9. Emphysemaa. Results in less gas can be exchanged in the lungsb. Is caused by smoking and is irreversiblec. Cause shortness of breathd. All of the above

10. Asthma occurs when thea. Some of the alveoli of the lungs fill with fluids so gas

cannot occurb. Air passages of the lungs periodically become too

narrow, often with excessive mucus productionc. Walls of the alveoli break down so less gas can be

exchanged in the lungsd. All of the above

11. Breathing is controlled by the a. Diaphragmb. Respiratory centers in the brainc. Level of carbon dioxide in the bloodd. All three of the above

12. The lungs are enclosed in a set of double membranes known as the a. Pericardium c. pleural sacb. Periosteum d. peritoneum

13. Which of the following sites would be the most lethal if obstructed by a foreign body?a. Right bronchus c. left bronchusb. Alveoli d. trachea

14. How will you describe the pathway of oxygen in the breathing system?a. Oxygen travels to the tracheab. Air goes to the bronchi and bronchiolesc. From nose and mouth to the alveolid. From the nose and mouth, oxygen travels to the

trachea, bronchi, bronchioles, and then into the alveoli.

15. How does the movement of the diaphragm cause air to go in and out of the lungs?a. Movement of the diaphragm affects the air pressure

inside the chestb. By either decreasing or increasing the space of the

chest cavity allowing air to go in and out of the lungsc. Both a and bd. Neither a nor b

16. The medical assistant working for a general practitioner is taking the medical history of a new patient. The patient states, “Even after sleeping 8 to 9 hours, I still feel really tired.” The patient’s spouse states, “Well, you sure snore loud, as if the sleep is so good.” Which of the following is a possible cause for the excessive fatigue?a. Depressionb. Sleep apneac. Tuberculosisd. Emphysema

17. Describe what happens to carbon dioxide in the blood.A. Carbon dioxide can combine with haemoglobin and

form carboxyhemoglobin.B. Most reacts with water in plasma to form carbonic

acid.C. The carbonic acid ionizes and releases hydrogen and

bicarbonate ions.D. The bicarbonate ions then attach to haemoglobin and

are exhaled as a waste product from the lungs.a. A only c. A, B, and C onlyb. A and B only d. all of the above

B. Study the illustration of the respiratory system very well. Identify the parts as numbered. (3 pts)

C. Write I if the statement refers to inhalation or E if it is exhalation. (3 pts)_____1. The intercostal muscles lower the ribs._____2. The intercostal muscles raise the ribs._____3. The diaphragm contracts or flattens_____4. Air rich in O2 enters the lungs from the atmosphere._____5. The diaphragm relaxes_____6. Air rich in CO2 exits the lungs

D. Respiration Process. Create a mental picture of the respiratory system. Using the words in column A write the correct sequence in column B. (3 pts)

Column A Column Bair sacs/alveoli 1. _______bronchioles 2. _______nose 3. _______trachea 4. _______pharynx 5. _______bronchi 6. _______larynx 7. _______