A.Duodenum B. Liver C. Lungs D. stomach E. small intestine
F. Diaphragm
16. It serves as the main muscle of respiration and plays a vital role in the breathing process.
17. It is a roughly triangular accessory organ of the digestive system.
18. It is the main food storage tank of the body. 19.Its only 1 inch in diameters 20. Its main function is to combine oxygen (O2) with the blood.
21. It has three regions namely: duodenum, jejunum and ileum.
22. Its main function is to help the body absorb fats into the bloodstream.

— is a dome shape of skeletal muscle that aids in pulmonary ventilation. During inhalation the diaphragm contracts, and during exhalation the diaphragm relaxes.

17. B. Liver

— liver triangular in shape responsible for producing bile.

18. Stomach

— primarily storage of food and it is where the initial chemical digestion starts.

19. Small intestine

— it is approximately 6 meters long and an inch in diameter

20. Lungs

— lungs is the major site where gas exchange happens

21. Small intestine

— small intestine is divided in to 3 division namely: duodenum, jejunum and ileum.

22. Liver

— the bile produced in the liver helps in breaking down fats.