Caste: Caste, any of the ranked, hereditary, endogamous social groups, often linked with occupation, that together constitute traditional societies in South Asia, particularly among encyclopÃdia britannica
Reticuloendothelial System (RES). a system of cells of mesenchymal origin in vertebrate animals and in man that can be converted to actively mobile phagocytic cells (macrophages).I.I.eticuloendothelial System (RES). a system of cells of mesenchymal origin in vertebrate animals and in man that can be converted to actively mobile phagocytic cells (macrophages). I.I.
Answer Wiki. Endothelial cells (Endothelium) are often considered specialized epithelial cells (Epithelium) which line blood vessels. Epithelial cells are one of the four types of cells from which animal tissues are constructed (epithelial, nervous, muscle, connective).