1. The Human Body and the Organ System
... , for example the ribs protect your lungs and your skull protects your brain. Another function of the skeletal system is to allow movement by its many joints. The skeletal system is an important organ system, because it has many functions that your body needs for living. The muscular system has one job; it provides movement for your body by contracting and relaxing. Most of your muscles ... dioxide. Your body needs oxygen to create food. The respiratory system is very important for getting air for your body. Your nervous system controls all of your body's activities. Because of your nerv...
- Word Count: 747
- Approx Pages: 3
- Grade Level: High School