Thrapple

The thrapple or hause(-pipe) is the pairt o the gastrointestinal seestem atween the mooth an the painch.

The thrapple is lined wi muscle. This muscle pushes the baw o fuid doun intae the painch. The thrapple can contract or hove for tae allou for the passage o fuid.

Category:Digeestive seestem