Kinesiology 2222A/B Lecture Notes - Lecture 9: Sternal Angle, Mediastinum, Lung

• School: Western University
• Department: Kinesiology
• Course: Kinesiology 2222A/B
• Professor: Gillian Corbo

Document Summary

Divisions of the mediastinum: superior mediastinum boundary = 1st rib sternal angle. Inferior mediastinum boundary = sternal angle diaphragm: anterior, middle **, posterior, middle compartment of inferior mediastinum = where heart sits, a lot can go wrong in this area because there is a lot happening/attaching at sternal angle. Surface anatomy of heart: clavicle, midline, between both clavicles, go straight down you"ll hit apex of heart, midclavicular line. 4 chambers of the heart: 2 atria (a, receive blood, l & r, 2 ventricles (v, pump blood away, l & r, veins, return blood to atria, arteries, take blood away from ventricles. Overview of the heart: 4 chambers, 2 atria, 2 ventricles, 4 valves, 2 atrioventricular (av) valves, tricuspid on r, bicuspid/mitral on l. Just groove on outside of heart: superior/inferior vena cava, biggest veins in body, aorta, main artery in body; basically carries all blood from heart to body, pulmonary trunk, splits into pulmonary arteries (l&r, continuous.