| duodenomesocolic fold | A fold of peritoneum bounding the inferior duodenal recess. Synonym: plica duodenalis inferior, plica duodenomesocolica, duodenomesocolic fold. (05 Mar 2000) |
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| ileocaecal fold | A fold of peritoneum bounding the ileocaecal or ileoappendicular fossa. Synonym: plica ileocaecalis, Treves' fold. (05 Mar 2000) |
| incudal fold | A variable fold of mucosa that passes from the roof of the tympanic cavity to the body and short limb of the incus. Synonym: plica incudis. (05 Mar 2000) |
| inferior duodenal fold | A fold of peritoneum bounding the inferior duodenal recess. Synonym: plica duodenalis inferior, plica duodenomesocolica, duodenomesocolic fold. (05 Mar 2000) |
| infrapatellar synovial fold | A fold of synovial membrane extending from below the level of the articular surface of the patella to the anterior part of the intercondylar fossa. Synonym: plica synovialis infrapatellaris, plica synovialis patellaris. (05 Mar 2000) |
| inguinal aponeurotic fold | Common tendon of insertion of the transversus and obliquus internus muscles into the crest and spine of the pubis and iliopectineal line; it is frequently muscular rather than aponeurotic and may be poorly developed; forms posterior wall of medial inguinal canal. See: aponeurosis of internal abdominal oblique muscle. Synonym: falx inguinalis, tendo conjunctivus, conjoined tendon, falx aponeurotica, inguinal aponeurotic fold. Contracted tendon, a condition of young horses in which the flexor tendon's of the leg are shortened. (05 Mar 2000) |
| inguinal fold | An embryonic mesodermal thickening that joins the caudal end of the urogenital ridge to the anterior abdominal wall; the gubernaculum of the testis develops in it. Synonym: inguinal fold. (05 Mar 2000) |
| interureteric fold | A fold of mucous membrane extending from the orifice of the ureter of one side to that of the other side. Synonym: plica interureterica, bar of bladder, Mercier's bar, plica ureterica, torus uretericus, ureteric fold. (05 Mar 2000) |
| opercular fold | Tissue forming a bridge or an adhesion between the tonsil and the anterior pillar of the fauces. (05 Mar 2000) |
| tail fold | The ventral folding of the caudal extremity of the embryonic disk. (05 Mar 2000) |
| tarsal fold | The fold marking the attachment of the levator palpebrae superioris muscle into the skin of the upper eyelid. (05 Mar 2000) |
| transverse palatine fold | A masticatory vestige on the hard palate; one of several irregular, sometimes branching, crests of soft tissue that radiate from the region of the incisive papillae at their most anterior parts and extend a slight distance backward, crossing the hard palate and reaching laterally for variable distances. Synonym: plica palatina transversa, ruga palatina, transverse palatine ridge. (05 Mar 2000) |
| transverse vesical fold | A duplication of peritoneum passing over the empty bladder, but obliterated when the viscus is full. Synonym: plica vesicalis transversa. (05 Mar 2000) |
| Treves' fold | A fold of peritoneum bounding the ileocaecal or ileoappendicular fossa. Synonym: plica ileocaecalis, Treves' fold. (05 Mar 2000) |
| triangular fold | A fold of mucous membrane anterior to the palatine tonsil arising from the palatoglossal arch. Synonym: plica triangularis. (05 Mar 2000) |