Chapter 21: Respiratory System Practice Test 2022

1. Which of the following is not a function of the respiratory system? A) provide an area for gas exchange between air and circulating blood B) transport air to and from the cells and tissues throughout the body C) condition gases before they reach the exchange surfaces of the lungs D) defend respiratory system and other tissues against inhaled bacteria 2. Which selection includes only upper respiratory tract components? A) nose, mouth, pharynx, and larynx B) larynx, trachea, bronchi, and lungs C) bronchi, respiratory bronchioles, and alveoli D) nose, nasal cavity, paranasal sinuses, and pharynx 3. The lower respiratory tract extends from the to the , inclusive. A) larynx; alveoli B) pharynx; lungs C) trachea; alveoli D) pharynx; alveolar sacs 4. The functional division of the respiratory system that transports air (as opposed to exchanging gases with the blood) is called the A) upper respiratory tract B) lower respiratory tract C) respiratory portion D) conducting portion 5. Air filtration and conditioning, olfaction, and sound resonance are all functions of the A) oral cavity B) nasal cavity C) pharynx D) larynx 6. Goblet cells are found throughout the conduction zone of the respiratory tract. These cells produce in order to protect the membranes in which they are found. A) white blood cells B) mucus C) type II alveolar cells D) type I alveolar cells 7. These cells found in the alveolar wall allow for rapid diffusion of gases across the cell membranes. A) white blood cells B) goblet cells C) type II alveolar cells D) type I alveolar cells