1.

Fill in the blanks:  1. The Opening of the stomach in duodenum is regulated by ....a.... 2. Opening of the common hcpato-pancreatic duct is guarded by a structure called ...b…. 3. The structure which prevents the back flow of faecol matter is called ...c... 4. A muscular structure that regulates the opening of oesophagus into stomach is called ..d..A. a-sphincter of Oddi, b-pyloric sphincter, c-gastro-oesophagal sphincter, d-ileo-caecal valve B.  b-sphincter of Oddi, a-pyloric sphincter, d-gastro-oesophagal sphincter, c-ileo-caecal valve C.  c---sphincter of Oddi, d-pyloric sphincter, a-gastro-oesophagal sphincter, b-ileo-caecal valve D. d-sphincter of Oddi, c-pyloric sphincter, b-gastro-oesophagal sphincter, a-ileo-caecal valveÂ

Answer» Correct Answer - B
The opening of the stomach in duodenum is regulated by pyloric sphincter.
Opening of the common hepato-pancreatic duct is guarded by a structure called sphincter of Oddi.
The structure which prevents the back flow of faecal matter is called ileo-caecal valve.
A muscular structure that regulates the opening of oesophagus into stomach is called gastro-oesophagal sphincter.


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