FISDAP AIRWAY EXAM [EMT] WITH QUESTIONS AND WELL VERIFIED ANSWERS [GRADED A+] ACTUAL EXAM 100%

FISDAP AIRWAY EXAM [EMT] WITH QUESTIONS AND WELL VERIFIED ANSWERS [GRADED A+] ACTUAL EXAM 100% From the atmosphere, what structures does air pass through during ventilation? - ANS----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? - ANS---- To warm/humidify air as it passes through Describe the anatomy of the larynx. - ANS----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. - ANS----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? - ANS---- bronchioles, and alveoli True or false: the lungs use muscles found in the lateral lobes to expand and contract? - ANS----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. - ANS----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. What is the difference between respiration and ventilation? - ANS---- 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? - ANS----nose, mouth, tongue, jaw, pharynx and larynx What muscles are involved in inhalation? - ANS----The diaphragm, cervical muscles (neck), intercostals, abdominal muscles, and pectoral muscles. What muscles are involved in expiration? - ANS