Question

Digestive glands seen in human beings are
A. Gallbladder, liver and pancreas
B. Colon, salivary gland and liver
C. Liver, pancreas and vermiform appendix
D. Pancreas, salivary gland and liver

Answer 1

Hint: The human digestive system consists of the alimentary canal and the associated glands. Digestive glands produce the chemical substances found in various organs of the digestive tract.

Complete Answer:
- The digestive glands include the salivary glands, the liver, and the pancreas. Saliva is formed primarily by three pairs of salivary glands, parotids (cheek), submaxillary / submandibular (lower jaw) and sublinguals (lower tongue).
- They are situated just outside the buccal cavity and secrete salivary juice into the buccal cavity.

1) The liver is the body's largest gland. It lies just below the diaphragm in the abdominal cavity. The bile secreted by the hepatic cells enters the hepatic ducts and is stored in a thin muscle sac known as the gallbladder. The gallbladder duct together with the liver hepatic duct forms the common bile duct.
2) The pancreas is an elongated organ which is located between the duodenum limbs. The exocrine region secretes enzyme-containing alkaline pancreatic juice, and the endocrine region secretes insulin, and glucagon.
3) The colon is a component of the large intestine. Its purpose is to reabsorb the body's fluids and process waste products, and to prepare for their removal.
4) Vermiform appendix is a small finger-like tubular projection that rises from the caecum and is considered as a vestigial organ.

Thus, the correct answer is option D i.e., Pancreas, salivary gland and liver.

Note: The gastric glands found in the stomach wall take care of the digestion process. They release hydrochloric acid, an enzyme called pepsin that digests proteins, and mucus that helps in the digestion process.