transverse folds of rectum; plicae recti; rectal valves (Houston folds, Kohlrausch folds)

Introduction

3 or 4 crescentric fold's placed horizontally in the rectal mucous membrane.

Superior rectal fold:

• situated near the begining of the rectum on the left side

Middle rectal fold (Houston or Kohlrausch fold):

• most prominent, from the right side ca. 8 cm above the anus

Inferior rectal fold:

• situated on the left side ca. 5cm above the anus

More general terms

• fold; plica

Additional terms

• perineum