Fill in the blanks: 1. The Opening of the stomach in duodenum is regulated by ....a.... 2. Opening
Channel: Doubtnut
Date: 26/01/2020

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..