The first step to creating and maintaining performance. The function of the nervous system, reproductive system and endocrine system. Essence, the whole body of a relative who works as a system. Every system is different, it is important for the body. If any anomalies are affecting other systems, we should recognize the different organs of preventing all maintenance work is usually strong and gives us good health. Neurological and reproductive endocrine system is vital to the body, helping to regulate the nervous system and sensory organs all contribute to the body work. Reproductive assistance continues to religion and endocrine hormones through a little blood flow to the organ by controlling the operation of the system. The diagram shows the rating system is a group of cells that make up the body. The human body is composed of cells. There are many shapes and sizes, different cell groups of the millions of cells that function specifically called tissue. Tissues of the same type or different. When acting together, either. Multiple organ organ called Coordinator working organ in the body, such as urinary tract consists of the kidneys, ureters, bladder and urethra, and the various systems in the body that acts differently. But the corresponding function in relation to the body for normal existence. Therefore, we should take care of the physical health of each organ system to function normally gives us good health.