Q. 235.0( 2 Votes )

Which gland is called the ‘dual gland’? Why?

Answer :

Pancreas is called the Dual gland. It is called so because it exhibits both exocrine and endocrine nature.

Exocrine nature of pancreas-


Pancreas exhibit exocrine nature because it secretes some enzymes through its acinar cells which also have ducts.


It secretes chymotrypsin, pancreatic lipases through pancreatic duct and thus exhibits exocrine nature.


Endocrine nature of pancreas-


Pancreas exhibit endocrine nature due to its Islets of Langerhens. This islet of langerhens secrets hormones insulin and glucagon and are ductless. Glucagon is secreted by alpha cells and insulin is secreted by beta cells of islets of langerhens. So, in this way pancreas exhibits endocrine nature.


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RELATED QUESTIONS :

Copy and complete the following table:

Tamil Nadu Board - Science

Here are a few statements about the endocrine system in man. State whether each of them is true or false. If the statement is false write the correct statement.

i) The endocrine system controls and co-ordinates the physical process of growth, reproduction, and sustenance of life.


ii) Endocrine glands are duct bearing glands which secrete chemical substances called hormones.


iii) The pancreas is a dual gland.


iv) Malfunctioning of the thymus gland causes goiter.

Tamil Nadu Board - Science

Match the following:

Tamil Nadu Board - Science