To address this problem, the Act permits expenditures from an endowment to be made based on a prudence standard that takes seven factors into consideration as follows: 1  the duration and preservation of the endowment fund; 2  the purposes of the institution and the endowment fund; 3  general economic conditions;
The serous pericardium, in turn, is divided into two layers, the parietal pericardium, which is fused to and inseparable from the fibrous pericardium, and the visceral pericardium, which is part of the epicardium. Both of these layers function in lubricating the heart to prevent friction during heart activity.he space between the two layers of serous pericardium (see below), the pericardial cavity, is filled with serous fluid which protects the heart from any kind of external jerk or shock. There are two layers to the pericardial sac: the outermost fibrous pericardium and the inner serous pericardium.
The pericardium (from the Greek ÏÎµÏÎ¯, around and ÎºÎ¬ÏÎ´Î¹Î¿Î½, heart) is a double-walled sac containing the heart and the roots of the great vessels. The pericardial sac has two layers, a serous layer and a fibrous layer. It encloses the pericardial cavity which contains pericardial fluid.oth of these layers function in lubricating the heart to prevent friction during heart activity. The visceral layer extends to the beginning of the great vessels (the large blood vessels serving the heart) becoming one with the parietal layer of the serous pericardium.