2. the structure of the human body. On the psychological education Necessary to understand the behavior of humans, that humans will display behaviors that come out is because of the body's systems work regardless of philosophers and scientists who have done research into a long period of different opinions, on the other hand, hotel.All plants, animals or the human body may have a structure that is made up of the smallest units that cannot be seen with the naked eye until the largest component. Each section will have a working relationship. Without any part that can work independently, with the exception of the blood. An estimated 75 to 80 percent that of the adult human body consists of water. The rest is a chemical compound of these compounds as a single cell, which is the basic unit type hundreds of the smallest of the body. Humans are creatures that are the most complex structure among all the creatures on Earth. The average human body contains cells of 80-100 trillion cells in each series is assigned a specific function and growth. By the same type of cell will be included into the tissue (tissues) in several tissues. Categories when it comes to work together is called the organ (organ), each body part once a collaboration called the system (system) When a cell is a special tissue integration, such as the muscle. Nerve tissue, bone, etc., these will work together as a body part, and in the end, these organs are allocated to the various systems of the body, such as muscles and glands and nervous system system is a system of various systems in the body in the body is related to work, human life is normal, functioning of the system within the body can be classified into 10 system as follows:
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