Question

describe the glands and its functions involved in the human digestive system (please answer neatly in systematiCal mannner please please please please please please please...............)​

Answer 1

Digestive glands :

Various glands are associated with alimentary canal serving the process of digestion of food. These are given below :

Salivary glands :

• These glands are of three types and secrete saliva containing an enzyme called Salivary amylase.

• It converts starch into sugar at an optimum pH of about 7.

• It is due to these salivary glands that our mouth waters when we eat or smell something we like.

Gastric glands :

• These are found in the wall of stomach.

• The gastric glands release digestive juice containing HCL, pepsin ,mucus, etc.

• Hydrochloric acid kills the bacteria ingested with the food.

• It creates and acidic medium of PH about 2, facilitating the action of pepsin enzyme.

• It acts on proteins present in food.

• Due to this highly acidic nature of HCL, the digestion of starch in stomach is prevented.

• It also prepares the ingested food for further processing in the small intestine.

• The mucus protects the lining of the stomach from the action of hydrochloric acid produced under normal conditions.

Liver :

• It's known as the largest gland of the body which secretes bile juice.

• These juices act on large fat molecules to form smaller globules, increasing the efficiency of enzyme action.

• Gallbladder stores bile juices for further use.

Intestinal glands :

• Walls of small intestine contain numerous glands that secrete intestinal juice containing Amylolytic, proteolytic and Lipolytic enzymes.

Pancreas :

• It secretes pancreatic juice which contains enzymes like amylase, trypsin and lipase.

• It is connected to the small intestine through its main duct called pancreatic duct.