The digestive system is made up of multiple organs that allow food to be processed, nutrients to be obtained and the waste generated after this process to be evacuated, <u>starting with the esophagus that carries food from the mouth to the stomach, later the stomach (to digest food) and the liver (to help digest food, synthesize proteins and eliminate harmful substances from the body) are put into operation, then pass the remaining food to the small intestine (where they finish digesting), and finally to the large intestine ready for evacuation</u>.
Pneumonia
is usually caused by a bacterial or viral infection in the <span><span>lung</span>, which
causes the patient to cough up yellow-green mucus.
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