Question

Which of the following is a part of your digestive system?

• A. Stomach
• B. Teeth
• C. Rectum
• D. All of the above

Answer 1

The correct option is D All of the above

• Digestion starts from the mouth and ends at large intestine. When the food enters mouth (ingestion), it is broken into small pieces by the teeth and acted upon by salivary amylase.
• Then it travels down the oesophagus to the stomach, where digestive enzymes from the pancreas, gall bladder, liver and duodenum further digest it.
• Assimilation of nutrients occurs at small intestine and absorption of water and other substances happen at the large intestine before it is egested or excreted.
• Thus, the correct answer is option D.