NURS 534 Adv Physiology Exam 2 Review - Respiratory Lectures With Complete Solutions

What is the main function of the lungs? - correct answer Gas exchange (O2 and CO2) Ventilation - correct answer Movement of air into and out of the lungs Diffusion - correct answer Movement of gases between air spaces in the lungs and the bloodstream Perfusion - correct answer Movement of blood into and out of the capillary beds of the lungs to body organs and tissues, enabling the organs and tissues of the body to receive blood that is rich in oxygen and low in CO2. conducting airways - correct answer passageways and tubes that allow air to pass into or out of the lungs (no gas exchange occurs here, because there are no alveoli); Upper airways: Warms and humidifies air --Nasopharynx --Oropharynx • Larynx: Connects the upper and lower airways • Lower airways --Trachea --Bronchi --Terminal bronchioles carina - correct answer Ridge where the trachea divides into the right and left bronchi. Hila - correct answer Where the right and left bronchi enter the lungs, along with blood and lymph vessels. goblet cells - correct answer Produce mucus cilia - correct answer Are hairlike structures that help propel foreign material upward to enable it to be coughed up chest wall - correct answer • Includes the skin, ribs, and intercostal muscles. • Functions: Protects the lungs from injury; its muscles, in conjunction with the diaphragm, perform the muscular work of breathing.