The CCIM Institute, headquartered in Chicago and an affiliate of the National Association of REALTORSÂ®, awards the CCIM designation to individuals who complete a process based both on commercial and investment real estate theory and practice. Weâll review this process in a moment.
Lesson Summary. The heart wall is composed of three main layers: the epicardium, myocardium, and endocardium. The pericardium (which is formed by the fibrous pericardium, the parietal pericardium and the epicardium) forms the outermost protective layer.
SURFACE ANATOMY AND FEATURES OF THE. HEART AND THE PERICARDIUM. THE PERICARDIUM: DEFINITION / DESCRIPTION (Fig 1): The pericardium is a double-walled, truncated, cone-shaped fibroserous sac, which encloses the. heart within the middle mediastinum. Its main function is to prevent sudden overfilling of the heart. It also secretes serous fluid, which prevents friction between its inner surface and the outer surface.