What other organs outside the digestive system tube contribute to digestion?

The digestive process starts in the mouth and ends in the large intestine. However, there are several organs outside the digestive tract but contribute to the digestive process. These are:

1. Liver: The liver produces bile which is stored in the gallbladder. Bile aids in the digestion and absorption of fats in the small intestine.

2. Pancreas: The pancreas produces enzymes like amylase, lipase, and protease, which help break down carbohydrates, fats and proteins in the small intestine.

3. Gallbladder: The gallbladder stores and releases bile into the small intestine when needed.

4. Kidneys: Kidneys maintain fluid and electrolyte balance and excrete nitrogenous waste products. This supports the digestive process by promoting water absorption in the large intestine.

5. Spleen: The spleen helps in the storage and recycling of red blood cells and also assists in the clearance of certain antigens and pathogens.