Question

Digestive glands seen in human beings are

• A. Gall bladder, liver and pancreas
• B. Colon, salivary gland and liver
• C. Liver, pancreas and vermiform appendix
• D. Pancreas, salivary gland and liver

Answer 1

Answer: (D)

Pancreas, salivary gland and liver

Several glands are involved in the digestion process. These include the salivary glands, glands in the stomach, and glands in the duodenum or small intestine. The salivary glands located under the tongue, and in the back of the mouth, produce saliva in the mouth. Enzymes in the saliva provide the first stage of chemical digestion, helping break down fats and carbohydrates. Glands in the stomach secrete gastrin that stimulates the stomach to produce gastric juices. These gastric juices help in the digestion of protein. The gastric juices also kill potentially harmful bacteria in the food. Glands in the duodenum or small intestine secrete several hormones including secretin, cholecystokinin (CCK), and gastric inhibitory peptide (GIP).

The liver is the largest gland which involves in digestion by producing bile juice.

The pancreas is a glandular organ in the upper abdomen, it secretes enzymes to break down the proteins, lipids, carbohydrates, and nucleic acids in food. Gall bladder, colon and vermiform appendix are not glands.

Therefore, the correct answer is option D