The pericardium is a tough double layered fibroserous sac which covers the heart. The 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.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.
There are 8 calories in a 1 peice serving of Werther's Original Sugar Free Hard Candy. Calorie breakdown: 14% fat, 86% carbs, 0% protein.
There are 170 calories in a 1/2 cup serving of Kroger Creamy Coleslaw. Calorie breakdown: 63% fat, 35% carbs, 2% protein.