Read the following statements and choose the incorrect statements.
a) A muscular pyloric sphincter regulates the opening of oesophagus into the stomach.
b) The opening of stomach into the duodenum is guarded by the sphincter of Oddi.
c) The opening of hepato-pancreatic duct into the duodenum is guarded by cardiac sphincter.
d) Back flow of faeces into the small intestine is prevented by ileo-caecal value.
e) Back flow of food into the oesophagus is prevented by gastro oesophageal sphincter.

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b, c only

c, d and e only

a, b and c only

d, e only

answer is C.

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Detailed Solution

A muscular cardiac sphincter regulates the opening of oesophagus into the stomach.
The opening of stomach into the duodenum is guarded by the pyloric sphincter.
The opening of hepato - pancreatic duct into the duodenum is guarded by sphincter of Oddi.

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