(a) Draw a neat diagram of alimentary canal and label the following parts.
Answers
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➤ The digestive system of human beingsconsists of 6-9 metre long alimentary canal starting from the mouth and ending to anus.
➤ The alimentary canal is also known as digestive tract.
➤ Gastro-intestinal tract is the portal or get through which the nutritive substances vitamins and fluid enter the body and proteins fats and carbohydrates broken down into absorbable units .
➤ In small intestine , these cross the mucosa and enter the lymph or blood and then can be used by the body .
➤ Stomach is a muscular - sac like structure that acts as a temporary storehouse for the food .
➤ It's muscular walls helps in the mixing of digestive juices with the food.
➤ It has a acidic medium which activates proenzyme pepsinogen and kills harmful bacteria .
➤ The exit of substances from the stomach is controlled by spinchter muscle .
Answer:
Alimentary Canal :
➤ The digestive system of human beingsconsists of 6-9 metre long alimentary canal starting from the mouth and ending to anus.
➤ The alimentary canal is also known as digestive tract.
➤ Gastro-intestinal tract is the portal or get through which the nutritive substances vitamins and fluid enter the body and proteins fats and carbohydrates broken down into absorbable units .
➤ In small intestine , these cross the mucosa and enter the lymph or blood and then can be used by the body .
Stomach :
➤ Stomach is a muscular - sac like structure that acts as a temporary storehouse for the food .
➤ It's muscular walls helps in the mixing of digestive juices with the food.
➤ It has a acidic medium which activates proenzyme pepsinogen and kills harmful bacteria .
➤ The exit of substances from the stomach is controlled by spinchter muscle .