HTHSCI 1H06 Lecture Notes - Lecture 1: Inferior Vena Cava, Superior Vena Cava, Anterior Interventricular Branch Of Left Coronary Artery

• School: McMaster University
• Department: Health Sciences
• Course: HTHSCI 1H06
• Professor: Bruce Wainman

Document Summary

Cardiovascular: cardio - heart, vascular - vessels, delivers o2, removes co2 by pumping blood through body. Located within the pericardium (a fibrous sac), which is located within the mediastinum: anterior mediastinum, pericardium fused inferiorly with diaphragm. Located and rotated to the left: moves up and down with breathing, top of heart is base of heart, bottom of heart is apex, great vessels, 3 sections. Starts in front of pulmonary trunk and arches over branches of pulmonary trunk and descends behind it: aorta - left ventricle, pulmonary trunk - right ventricle, superior vena cava - drains blood from top and bottom of body. Inferior vena cava - drains from bottom of body. In anterior region, thymus gland located, larger in infancy. In posterior region, descending aorta, esophagus, lymph nodes, vagus nerve, thoracic duct. Four chambers: atria at top, ventricles at bottom, ascending aorta comes off left ventricle then falls behind, forming descending aorta.