ANP 1105 Lecture : heart.doc

• School: University of Ottawa
• Department: Anatomy and Physiology
• Course: ANP 1105
• Professor: Jacqueline Carnegie

Document Summary

Left of the midline, from 2nd rib to 5th intercostal (between ribs) space. Anterior (in front) to the vertebral column; posterior to the sternum. The heart is enclosed in a double-walled sac called the pericardium. The loosely fitting superficial part of this sac is the fibrous pericardium. Below the fibrous pericardium is the serous pericardium. The parietal layer of the serous pericardium lines the internal surface of the fibrous pericardium; it attaches to the large arteries exiting the heart and then continues over the external heart surface of the visceral layer. Between the parietal and visceral layers is the pericardial cavity (look at pg. 663) which contains a film of serous fluid; this allows the heart to work in a relatively friction-free environment (epicardium) turns and. The heart wall consists of the epicardium, myocardium, and the endocardium. The superficial epicardium is the visceral layer of the serous pericardium and is often infiltrated with fat especially in old people.