BIOD 151 Anatomy Module 2 Study Guide - Respiratory System - Portage Learning Module2:RespiratorySystem

BIOD 151 Anatomy Module 2 Study Guide - Respiratory System - Portage Learning Module2:RespiratorySystem GeneralAnatomyofRespiratorySystem: Grossanatomyisthestudyoftheorgansandstructuresofthehumanbodyvisibletothenakedeye. When looking at the lungs from a gross anatomical perspective, the lungs are paired andfound in the chest cavity (Figure 2.1). Notice that the lungs are not symmetrical. The right lunghasthreelobes:superior,middle,andinferior.Thelefthastwolobes:superiorandinferior.Thisasymmetry is due the position of the heart which is situated slightly to the left of the medianplane. The hilum is known as the “root” of the lung. This is where the pulmonary vessels andbronchi enter each lung (Figure 2.2). Healthy lung tissue has a very light texture and ispeachy/pinkincolor. Figure2.1Anteriorview:Grossanatomyoflungs.Therightlunghasthreelobes(superior,middle, inferior) while the left lung has two lobes (superior, inferior). The right and left lungboth have oblique fissures separating the lobes. The right lung also has a horizontal fissureseparating thesuperior and middlelobes.