The document provides an overview of heart anatomy: 1. It describes the layers of the heart including the pericardium, epicardium, myocardium, and endocardium. 2. It outlines the major blood vessels that supply and drain the heart, including the pulmonary and systemic circulations. 3. It explains the structure and function of the four heart chambers, four valves, and coronary circulation which supplies the heart muscle.

1. Anatomy & Physiology 122 (MT/ESM) The Heart Lecture –Part 1

3. Heart Anatomy Figure 18.1

6. Pericardial Layers of the Heart Figure 18.2

10. External Heart: Anterior View Figure 18.4b

13. External Heart: Posterior View Figure 18.4d

14. Gross Anatomy of Heart: Frontal Section Figure 18.4e

18. Pathway of Blood Through the Heart and Lungs Figure 18.5

20. Coronary Circulation: Arterial Supply Figure 18.7a

21. Coronary Circulation: Venous Supply Figure 18.7b

24. Heart Valves Figure 18.8a, b

25. Heart Valves Figure 18.8c, d

26. Atrioventricular Valve Function Figure 18.9

27. Semilunar Valve Function Figure 18.10

29. Microscopic Anatomy of Heart Muscle Figure 18.11