FISDAP Airway Exam With 100% Correct Answers 2024

From the atmosphere, what structures does air pass through during ventilation? - ANSWER Starts in atmosphere, then nose, nasopharyngeal space/orophargyneal space (if mouth breather), then pharynx, larynx, trachea, bronchi, bronchioles, alveoli What is the purpose of the nasal passages and nasopharynx? - ANSWER To warm/humidify air as it passes through What is the difference between respiration and ventilation? - ANSWER Respiration refers to the exchange of gases in the alveoli, ventilation refers to the movement of air into the lungs. Respiration is needed to provide O2 to cells and remove waste products. Also regulates pH of blood. What are the structures of the upper airway? - ANSWER nose, mouth, tongue, jaw, pharynx and larynx What structure is considered a landmark that divides the upper airway from lower? - ANSWER The larynx, anything above is upper. The larynx and below are lower. What are the structures of the lower airways? - ANSWER larynx (includes adam's apple/thyroid cartilage, cricothyroid membrane, cricoid cartilage), trachea, bronchi, bronchioles, alveoli Describe the anatomy of the larynx. - ANSWER From superior to inferior. Thyroid cartilage, cricothyroid membrane, and cricoid membrane. The thyroid cartilage and cricoid cartilage are anterior to the larynx, and the cricothyroid membrane is posterior to both structures. True or false: the lungs are completely equal in the midsaggital plane. - ANSWER False, right lungs has 3 lobes, left lung only has 2 lobes. Together they have 5 total. Also, the right bronchi is inferior to the left bronchi. What are the structures of the lungs in order of ventilation? - ANSWER bronchioles, and alveoli True or false: the lungs use muscles found in the lateral lobes to expand and contract? - ANSWER False: the lungs are hollow organs and contain no muscles. When the diaphragm contracts it expands the thoracic cavity. The pleural space has a negative pressure and the lungs expand. This results in a slightly negative pressure (compared to the atmosphere) and air rushes in. True or false: Air rushes into the lungs because of negative pressure. - ANSWER True, when the lungs expand, they are creating a vacuum because they are expanding the volume of the container. This increase in volume causes influx of air into the container until the pressure is equalized with the atmosphere. True or false: The parietal pleura lines the lungs and the visceral pleura lines the lungs. The space between is called the anterior pleura. - ANSWER False: the visceral pleura lines the lungs, the parietal pleura lines the body cavity and the pleural space is the space in between both where body fluid allows for both to smoothly glide. What muscles are involved in inhalation? - ANSWER The diaphragm, cervical muscles (neck), intercostals, abdominal muscles, and pectoral muscles. What muscles are involved in expiration? - ANSWER none, expiration (if done passively