Portage Pathophysiology Module 5- Pulmonary System Disorders EXAM QUESTIONS AND ANSWERS 100% CORRECT!

main function of the respiratory system - ANSWERgas exchange - primary goal is to get oxygen into the blood while also expelling carbon dioxide from the body. respiratory system can be divided into: - ANSWERthe conducting airways and the respiratory tissues. structures that make up the conducting airways - ANSWERThe nasal passages, mouth and pharynx, larynx, trachea, bronchi, and bronchioles - Air is brought in from the atmosphere and directed to the lungs through these structures. Once in the lung, the respiratory tissues are where gas exchange takes place. - most of the conducting airways are lined with ciliated pseudostratified columnar epithelium - The ciliated cells protect the airway by entrapping particles and redirecting them back toward the oropharynx where they can be expectorated or swallowed. Within the ciliated cells, mucus-secreting glands also secrete antibacterial enzymes. The bronchus also contains smooth muscle cells, mucus glands, connective tissue, and cartilage. The smaller bronchioles are made of simple epithelium. They lack cartilage and the wall is thinner. Importantly, the alveolar wall is made for gas exchange, not structural support tracheobronchial tree - ANSWERstarts at the conducting airway and branches into the lobes of the lungs, ending in the respiratory airway where gas exchange takes place. Altogether, as the name implies the tracheobronchial tree consists of the trachea, bronchi, and bronchioles. trachea - ANSWER- connects the larynx t