BIOM20002 Lecture 44: 44 Cardiovascular System 1 A
Document Summary
Pericardium (arrangement of the fibrous and serous layers of pericardium) Cardiac chambers (major anatomical features and their functional significance) Atrioventricular and semilunar valves (structure, position and their role in prevention of regurgitation) Heart enclosed in pericardium, a broserous membrane covers the heart and the great vessel roots composed of 2 layers. Fibrous pericardium continues with the central tendon of the diaphragm. Heart sits on top of central tendon on diaphragm. Serous pericardium is continuous - lines fibrous pericardium (parietal serous pericardium) and the heart itself (visceral serous pericardium) Pericardial cavity: a potential space between the parietal and visceral layers of serous pericardium; contains a small amount of fluid, providing a frictionless environment when heart beats. So right chambers lie in front of the left chambers. Anterior view: ra forms right border of heart. Left 5th intercostal space (space between 5th and 6th ribs). This is how to measure the apical beat. Surface anatomy of the heart - anterior view.
