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.
Major Organs. In the human reproductive system, the major organs include the external genitalia and many internal organs including gamete producing gonads. The external genitalia are the penis and vulva and the gamete producing gonads are the testicles and ovaries.