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Ribcage

It is a set of bones that protects the heart and lungs in our thoracic cavity and aids in breathing.

Esophagus

Food is brought to the stomach through a relatively straight tube called the esophagus. The food is moved by a sequential series of smooth contractions called peristalsis.

Stomach

During digestion, the food is held for a while in the stomach to mix with gastric juices secreted from the cells of the stomach's inner lining.

Small intestine

The digestive process continues in the small intestine, where nutrients are absorbed with the help of thousands of finger-like projections called villi.

Lungs

These are spongy, air-filled organs of the respiratory system that allow us to breathe.