Compléter Human Body SystemsVersion en ligne A game where you should complete the systems functions par Omar Hicho Lahsen 1 respiratory system system reproductive male reproductive digestive system nervous system system body's circulatory system reproductive muscular female system system Our bodies consist of a number of biological systems that carry out specific functions necessary for everyday living . The job of the is to move blood , nutrients , oxygen , carbon dioxide , and hormones , around the body . The consists of about 650 muscles that aid in movement , blood flow and other bodily functions . The consists of a series of connected organs that together , allow the body to break down and absorb food , . The controls both voluntary action and involuntary actions , and sends signals to different parts of the body . The allows humans to reproduce . The includes the penis and the testes , which produce sperm . The consists of the vagina , the uterus and the ovaries , which produce eggs . The allows us to take in vital oxygen and expel carbon dioxide in a process we call breathing .
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