Write the absorption of substances in different part of the alimentary canal

Different substances absorbed in the different regions of the alimentarycanal are

given below:

(i) Mouth : Certain drugs coming in contact with the mucosa

of mouth and lower side of the tongue are

absorbed into the blood capillaries lining them.

(ii) Stomach : Absorption of water, simple sugars, an alcohol etc.

takes place.

(iii) Small intestine : Principal organ for absorption of nutrients. The

digestion is completed here and the final products

of digestion such as glucose, fructose, fatty acids,

glycerol and amino acids are absorbed through the

mucosa into the blood stream and lymph.

(iv) Large intestine : Absorption of water, some minerals and drugs

takes place.