surcease. 1. To prevent the occurrence or continuation of a movement, action, or operation: arrest, belay, cease, check, discontinue, halt, stall, stay, stop. Idioms: bring to a standstill, call a halt to, put a stop to.
Embryonic stem cell. Also called ES cells, embryonic stem cells are cells derived from the inner cell mass of developing blastocysts. An ES cell is self-renewing (can replicate itself), pluripotent (can form all cell types found in the body) and theoretically is immortal.tem cells that can give rise to all cell types that are found in an embryo, fetus, or developed organism, including the embryonic components of the trophoblast and placenta required to support development and birth.
BONE MARROW: All the cells of the immune system are initially derived from the bone marrow through a process called hematopoiesis. During foetal development hematopoiesis occurs initially in yolk sac and para-aortic mesenchyme and later in the liver and spleen.This function is taken over gradually by the bone marrow.ymphoreticular cells include reticuloendothelial cells and lymphoid cells. Reticuloendothelial system: The reticuloendothelial system mainly comprise of phagocytic cells whose function is to engulf microbes, immune complex from blood and tissues and participate in inflammation.