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Question

Diagram of alimentary canal of man is given. Parts labelled as a, b ,c, d and e.


A
(a) Liver, (b) Oesophagus, (c) Gall Liver, (D) Pancreas, (e) Large intestine
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B
(a) Gall Bladder, (b) Oesophagus, (c) Gall Liver, (D) Pancreas, (e) Large intestine
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C
(a) Liver, (b) Pharynx, (c)Bladder, (d) Pancreas, (e) Large intestine
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D
(a) Gall Bladder, (b) Pharynx, (c) Bladder, (d) Pancreas, (e) Large intestine
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Solution

The correct option is A (a) Liver, (b) Oesophagus, (c) Gall Liver, (D) Pancreas, (e) Large intestine
a. Liver: is the largest gland in body. It stores its waste bile in gall bladder. Bile is released into duodenum and helps in digestion of fats. Liver secretion, bile, does not have any enzymes in it.

b. The oesophagus is a muscular tube. It connects your mouth to your stomach. When swallow food, the walls of the oesophagus squeeze together (contract). This moves the food down the oesophagus to the stomach. The upper part of the oesophagus is behind the windpipe (trachea).

c. The gallbladder is a small pouch that sits just under the liver. The gallbladder stores bile produced by the liver. After meals, the gallbladder is empty and flat, like a deflated balloon. Before a meal, the gallbladder may be full of bile and about the size of a small pear.

d. The pancreas is an organ of the digestive system and endocrine system of vertebrates. In humans, it is located in the abdomen behind the stomach and functions as a gland. The pancreas has both an endocrine and a digestive exocrine function.

e. The large intestine is a thick, long tube measuring around 5 feet in length. It is present just beneath the stomach and wraps over the superior and lateral edges of the small intestine. It absorbs water and consists of bacteria (symbiotic) that support the breakdown of wastes to fetch small nutrients.

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