| interosseous border of radius | The ridge along the medial side of the radius to which is attached the interosseous membrane. Synonym: margo interosseus radii. (05 Mar 2000) |
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| interosseous border of tibia | The ridge along the lateral border of the tibia to which is attached the interosseous membrane. Synonym: margo interosseus tibiae. (05 Mar 2000) |
| interosseous border of ulna | The ridge along the lateral side of the body of the ulna to which is attached the interosseous membrane. Synonym: margo interosseus ulnae. (05 Mar 2000) |
| occipital border | Edge of a bone which articulates with the occipital bone. See: occipital border of parietal bone, occipital border of temporal bone. Synonym: margo occipitalis, occipital margin. (05 Mar 2000) |
| occult border of nail | The proximal border of the nail entirely covered by the nail wall. Synonym: margo occultus unguis, occult border of nail. (05 Mar 2000) |
| tibial border of foot | The inner border of the foot extending from heel to the great toe. Synonym: margo medialis pedis, margo tibialis pedis, tibial border of foot. (05 Mar 2000) |
| lacrimal border of maxilla | The margin of the nasal surface of the maxilla that articulates with the lacrimal bone. Synonym: margo lacrimalis maxillae, lacrimal margin of maxilla. (05 Mar 2000) |
| lateral border | The margin or edge of a structure which is farthest from the midline. Synonym: margo lateralis, lateral margin. (05 Mar 2000) |
| lateral border of foot | The border of the foot between the small toe and the heel. Synonym: margo lateralis pedis, margo fibularis pedis, fibular margin of foot. (05 Mar 2000) |
| lateral border of forearm | An imaginary line running along the outermost extent of the forearm separating anterior and posterior surfaces laterally. Synonym: margo lateralis antebrachii, margo radialis antebrachii, radial border of forearm. (05 Mar 2000) |
| lateral border of humerus | The ridge on the humerus that extends from the greater tubercle to the lateral epicondyle. Synonym: margo lateralis humerii. (05 Mar 2000) |
| lateral border of kidney | The convex narrow edge separating the anterior and posterior surfaces. Synonym: margo lateralis renis. (05 Mar 2000) |
| lateral border of nail | The sides of the nail extending from the proximal to the free borders. Synonym: margo lateralis unguis. (05 Mar 2000) |
| lateral border of scapula | The edge of the scapula extending from the glenoid fossa to the inferior angle. Synonym: margo lateralis scapulae. (05 Mar 2000) |
| free border | Unattached edge of a sturcture, often opposite the attached edge. See: free border of nail, free border of ovary. Synonym: margo liber, free margin. (05 Mar 2000) |