As the stomach empties, these constrictor rings begin further up in the body of the stomach promoting further gastric emptying.
2
One of the commonest species of the genus Boa is the Boa constrictor, which has a wide range from tropical Mexico to Brazil.
3
The Amazon region is frequented by the giboia (boa constrictor), and the central plateau by the sucurid (Eunectes murinus), both distinguished for their enormous size.