Anal folds | definition of anal folds by Medical dictionary
slightly elevated folds derived from the cloacal folds that are located just lateral to the anal membrane; they form the margin of the anus.
Farlex Partner Medical Dictionary © Farlex 2012
References in periodicals archive
It separates the cloaca into dorsal and ventral chambers with dorsal portion forming anal folds
while the ventral one forming urogenital folds.