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Question

How many of the following statements are wrong?
a) The bile duct and the pancreatic duct open together into the duodenum as the common hepato-pancreaticx duct which is guarded by sphincter of Boyden.
b) The parotic, sub-maxillary and sub-lingual salivary glands are located just outside the buccal cavity and secrete salivary juice into the buccal cavity.
c) In duodenum, glands are only found in submucosa which are Brunner's glands, a type of simple branched tubular glands.
d) There is no modification of the four layers namely serosa, muscularis, sub-mucosa and mucosa in different parts of alimentary canal.e.Lipases are absent in secretion of gastric glands.

A
One
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B
Two
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C
Three
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D
Four
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Solution

The correct option is D Four
(a) The bile duct and pancreatic duct open together into the duodenum as the common hepato-pancreatic duct which is guarded by a sphincter called the sphincter of Oddi.
(c) In the duodenum, glands are only found in the submucosa, which are Brunner's glands, a type of compound tubular glands.
(d)All the four layers show modifications in different parts of the alimentary canal.
(e)Lipase is present in the secretion of gastric glands.
So, the correct option is 'four'.

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