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.
The organs of the system include the nose, the pharynx, the larynx, the trachea, the bronchi, and the lungs. See also respiration and Plates 7 and 8. reticular activating system see reticular activating system. reticuloendothelial system see reticuloendothelial system. safety system see safety system.