pylorus

Introduction

The muscular tissue surrounding & controlling the aboral outlet of the stomach; guards the pyloric orifice. The pylorus is normally in tonic contraction; it is closed except when emitting chyme. The gastric peristalsis passes the chyme through the pyloric canal & pyloric orifice into the small intestine for further mixing, digestion & absorption.

More general terms

• gastrointestinal structure

Additional terms

• peristalsis (gastrointestinal motility)

Component of

• stomach