| lateral glossoepiglottic fold | The fold of mucous membrane that extends from the margin of the epiglottis to the pharyngeal wall and base of the tongue on each side, forming the lateral boundary of the epiglottic valleculae. Synonym: plica glossoepiglottica lateralis, pharyngoepiglottic fold. (05 Mar 2000) |
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| lateral nasal fold | An ectodermally covered mesenchymal swelling separating the embryonic olfactory pit from the developing eye. Synonym: lateral nasal fold, lateral nasal primordium, lateral nasal process. (05 Mar 2000) |
| lateral umbilical fold | The ridge on the peritoneal surface of the anterior abdominal wall formed by the inferior epigastric vessels. Synonym: plica umbilicalis lateralis, epigastric fold, plica epigastrica. (05 Mar 2000) |
| longitudinal fold of duodenum | A fold of mucosa on the medial wall of the descending part of the duodenum above the major duodenal papilla, probably caused by the relation to the common bile duct. Synonym: plica longitudinalis duodeni. (05 Mar 2000) |