Serous pericardium. 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.
LaRene Porter Gaunt, Welcome to Relief Society, Ensign, Aug. 2004, 15. Sister Bonnie D. Parkin, Relief Society general president, and Sister Susan W. Tanner, Young Women general president, readily agree they are a team. We have both worked in Relief Society and in Young Women, says Sister Parkin. We're united because we've seen both sides of the spectrum.
Three years later on December 12, 1831, Catherine and two companions became the first Sisters of Mercy. In the 10 years between the founding and her death, she established 14 independent foundations in Ireland and England.