1. The Important Thing About the Human Body

2. The important thing about our bodies is that all parts work together.
The circulatory system receives oxygen from the respiratory system. Respiration is the intake of oxygen from the air into my body through two specialized organs called the lungs. When my lungs are filled with air, oxygen is absorbed into the bloodstream through tiny sacs called alveoli. Carbon dioxide passes from the blood into the alveoli and is flushed out of the body when I exhale. But, the respiratory system cannot work alone…
The important thing about our bodies is that all parts work together.

3. The important thing about our bodies is that all parts work together.
The respiratory system receives nutrients from the digestive system. This is a tube of connected organs where specialized activities occur along its length. This begins in the mouth where my food is chewed and mixed with saliva. The process of digestion continues after the food is swallowed and enters my stomach. Then my intestines can absorb digested food. But, the digestive system cannot work alone…
The important thing about our bodies is that all parts work together.

4. The important thing about our bodies is that all parts work together.
The waste from the digestive system is removed from my body by the excretory system. The kidneys process cell waste, including carbon dioxide and ammonia. Waste is removed from my body through urine and feces.
The important thing about our bodies is that all parts work together.