AP2 Final study guide.docx - Ch 21 1.During a choking episode most foreign objects are more likely to become lodged in the bronchus due to its larger

AP2 Final study guide.docx - Ch 21 1.During a choking...

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Ch 21 1.During a choking episode, most foreign objects are more likely to become lodged in the ________ bronchus due to its larger diameter and steeper angle. Right Primary 2.The laryngeal cartilage composed of elastic cartilage that prevents entry of solids or liquids into the larynx when swallowing is the Epiglottis 3.Damage to the type II pneumocytes of the lungs would result in all of the following except __________ 4.The respiratory membrane of the gas exchange surfaces consists of Simple Squamous Epithelium 5.Compare the two main bronchi. The right main bronchus is larger in diameter than the left main bronchus and it descends toward the lung at a steeper angle than the left main bronchus. 6.What does not happen to a carbon dioxide molecule once it enters the bloodstream? It binds to heme groups in hemoglobin. 7.Which of the following organs is not part of the lower respiratory system? Oropharynx (what is? Bronchi, alveoli, larynx, bronchioles) 8.In the lower respiratory tract, cartilage plates first appear at the Secondary bronchi 9.Pulmonary ventilation refers to the 10. Define oxyhemoglobin . Oxyhemoglobin is hemoglobin that has 4 molecules of oxygen bound . 11. Which of the following systems is responsible for gas exchange? Respiratory 12. What branches from the trachea? Primary bronchi 13. Expiratory movements are produced by contraction of the Internal intercostal muscle(s). 14. The movement of chloride ions into the RBCs in exchange for bicarbonate ions is known as The chloride shift 15. Tidal Volume (TV) is the amount of air that moves into the respiratory system during a single respiratory cycle under resting conditions. 16. Trace the pathway of airflow along the passages of the lower respiratory tract. trachea — main bronchi — lobar bronchi — segmental bronchi — terminal bronchioles — pulmonary lobule 17. Define hypercapnia and hypocapnia . Hyper capnia is an abnormally high arterial PCO2 . Hypo capnia is an abnormally low arterial PCO2. 18. Are chemoreceptors more sensitive to blood CO 2 levels or blood O 2 levels? blood CO 2 levels 19. Name the lobes and fissures of each lung. **The left lung is divided into a superior lobe and an inferior lobe by the oblique fissure. The right lung is divided into a superior lobe and middle lobe by the horizontal fissure, and the oblique fissure separates the superior and middle lobes from the inferior lobe. 20. Which of the following statements about the trachea is false ? *Reinforced by D shaped cartilage 21. The common passageway shared by the respiratory and digestive systems is the Pharynx 22. Air passing through the glottis vibrates the vocal folds and produces phonation 23. The ultimate function of pulmonary ventilation is to provide adequate alveolar ventilation . 24. If a patient being tested inhales as deeply as possible and then exhales as much as possible, the volume of air expelled would be the patient's Vital Capacity
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25. The largest shield-shaped cartilage of the larynx is the _thyroid_ cartilage.
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