The final physical breakdown of food happens in the stomach with the help of churning muscles and gastric juice released from the glands in the mucus lining.
Digestion breaks down all the food we eat so the important nutrients and molecules can be absorbed into our circulatory system. All of our cells use the nutrients, and as a part of working, create waste that our body systems eliminate. Three very important systems remove waste from our cells. Learn about skin, the respiratory system and why the urinary system is our most important excretory system...
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