Stamped concrete refers to the process of decorating concrete once it has been laid by an installer. Professional landscaping and patio companies use the same type of concrete used in driveways and other projects, and the material consists of a sandy substance that the installer mixes with water.
The major organs of the immune system are bone marrow, thymus, spleen and lymph nodes. These organs produce lymphocytes required to destroy bacteria, virus, tumor cells, etc. This article dwells on these major immune system organs that protect the human body from infections.
The adenoids, appendix, spleen and thymus are considered lymph organs because they contain hundreds of lymph nodes. These nodes contain thousands of monocytes and lymphocytes â¦ which are white blood cells that protect the body from and defend the body against pathogens. 1 person found this useful. Answered.