APHY 102 Exam 3 Chapter (19-21) Questions and Answers 2024

APHY 102 Exam 3 Chapter (19-21) Questions and Answers 2024 The events of respiration are ventilation, external and internal Breathing functions to deliver oxygen to cells, where it takes part in the reactions of cellular respiration that liberate energy from nutrient molecules and get rid of carbon dioxide, which maintains the pH of the internal environment. The mucous membrane lining the nasal cavity warms incoming air. moistens incoming air. entraps dust. correct all of the above. The pharynx functions as a ______, whereas the larynx functions as a ______. common passageway for air and food; passageway for air only The right lung has ______ lobes; the left lung has ______ lobes. superior, middle, and inferior; superior and inferior The force that moves air into the lungs during inspiration comes from the atmospheric pressure. Of the respiratory air volumes listed, which one has the largest volume? Vital capacity The first event in expiration is the diaphragm and external intercostal respiratory muscles relax. The respiratory control areas are in the pons and medulla oblongata. Which of the following factors does not directly affect breathing rate? pH Which of the following is important in maintaining the pH of blood? Carbon dioxide Hyperventilation is usually accompanied by a(n) decrease in blood CO2 concentration and a rise in pH.