Fold

(fold). A term applied to the plication or doubling together of various parts of the body. F., Aryteno-epiglottidean, a fold of mucous membrane stretched between the sides of the epiglottis and the apex of the arytenoid cartilage. F., Palpebral, the fold formed by the reflection of the conjunctiva from the eyelids on to the eye. There are two folds, the superior and inferior. F., Recto vaginal, the fold of the peritoneum in females descending in front of the rectum and behind the vagina. It corresponds with the recto-vesical fold of males. F., Vater's, the plica transversal is or transverse fold of the duodenum, situated just above the opening of the pancreatic and biliarv ducts.