The Executive Branch is comprised of the President and his Cabinet (Secretaries). Secretaries serve as the heads of government departments. Departments, commissions, and agencies are responsible for interpreting the laws passed by Congress and administering government programs created by those laws.he Executive Branch is comprised of the President and his Cabinet (Secretaries). Secretaries serve as the heads of government departments. Departments, commissions, and agencies are responsible for interpreting the laws passed by Congress and administering government programs created by those laws.
The liver also filters harmful substances from the blood. Phagocytic cells in the liver, called Kupffer cells, remove large amounts of debris and bacteria. In addition, the liver stores important vitamins and minerals, including vitamins A, D, K, and B12.
spleen definition An organ in the lymphatic system, in the upper left part of the abdomen, that filters out harmful substances from the blood. The spleen also produces white blood cells, removes worn-out red blood cells from circulation, and maintains a reserve blood supply for the body.