| PCA | para-chloramphetamine; parietal cell antibody; passive cutaneous anaphylaxis; patient care assistant... |
|---|---|
| PCL | pacing cycle length; persistent corpus luteum; plasma cell leukemia; posterior chamber lens; posteri... |
| PD | Doctor of Pharmacy; Dublin Pharmacopoeia; interpupillary distance; Paget disease; pancreatic duct; p... |
| PICA | percutaneous transluminal coronary angioplasty; Porch Index of Communicative Abilities; posterior in... |
| PP | diphosphate group; emphysema [pink puffers]; near point of accommodation [Lat. punctum proximum]; pa... |
| inferior horn of falciform margin of saphenous opening | The lower part of the falciform margin of the opening in the fascia lata through which the greater saphenous vein passes. Synonym: cornu inferius marginalis falciformis hiatus sapheni. (05 Mar 2000) |
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| inferior margin | The caudal or lowermost margin of a structure. Synonym: inferior margin, margo inferior. (05 Mar 2000) |
| inferolateral margin | The irregular, discontinuous margin of the cerebral hemisphere at the junction of the inferior and superolateral surfaces. Synonym: margo inferolateralis, inferolateral margin. (05 Mar 2000) |
| inferomedial margin | The irregular border of the cerebral hemisphere at the junction of the inferior and medial surfaces. Synonym: margo inferomedialis, inferomedial margin. (05 Mar 2000) |
| infraorbital margin | The inferior half of the orbital rim, or the lower border of the orbital opening, formed by the maxilla medially and the zygomatic bone laterally. See: orbital rim. Synonym: margo infraorbitalis. (05 Mar 2000) |
| interosseous margin | Edge of a bone to which a fibrous (interosseous) membrane is attached, by which the bone becomes attached to another bone. See: interosseous border of fibula, interosseous border of radius, interosseous border of tibia, interosseous border of ulna. Synonym: margo interosseus, interosseous crest, interosseous margin. (05 Mar 2000) |
| occipital margin | 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) |
| orbital margin of eyelids | The outer or peripheral attached borders of the upper and lower eyelids; the "root" of the eyelids, along which it is attached to the orbital rim. (05 Mar 2000) |
| falciform margin | The sharply curved, free margin of the saphenous opening in the fascia lata; medially, it ends in a superior and an inferior horn. Synonym: margo falciformis. (05 Mar 2000) |
| ulnar margin of forearm | An imaginary line extrapolated from the medial epicondyle of the humerus to the styloid process of the ulna, forming a border between the anterior and posterior surfaces. Synonym: margo medialis antebrachii, margo ulnaris antebrachii, ulnar margin of forearm. (05 Mar 2000) |
| fibular margin 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) |
| lacrimal margin 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 margin | The margin or edge of a structure which is farthest from the midline. Synonym: margo lateralis, lateral margin. (05 Mar 2000) |
| free margin | 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) |
| free margin of eyelids | The unattached inferior edge of the upper lid and superior edge of the lower lid, where the anterior (cutaneous) surface of the eyelid meets the posterior (conjunctival) surface of the eyelid. The free margins of the eyelids bound the rima palpebrarum, and each free margin has an anterior and posterior border. See: borders of eyelids. (05 Mar 2000) |