| PCF | peripheral circulatory failure; pharyngoconjunctival fever; platelet complement fixation; posterior ... |
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| PCOM | posterior communicating [artery] |
| PDA | patent ductus arteriosus; personal digital assistant; posterior descending artery; pulmonary disease... |
| PFT | pancreatic function test; parafascicular thalamotomy; posterior fossa tumor; prednisone, fluorouraci... |
| PGE | platelet granule exract; posterior gastroenterostomy |
| posterior conjunctival artery | <anatomy, artery> One of a series of branches from the arterial arches of the upper and lower eyelids that supplies the conjunctiva. Synonym: arteria conjunctivalis posterior, conjunctival arteries. (05 Mar 2000) |
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| posterior cord of brachial plexus | In the brachial plexus, the bundle of nerve fibres formed by the posterior divisions of the upper, middle and lower trunks which lies posterior to the axillary artery; it gives rise to the upper and lower subscapular and thoracodorsal nerves, terminates by dividing into the axillary, and radial nerves. Synonym: fasciculus posterior plexus brachialis. (05 Mar 2000) |
| posterior coronary plexus | The portion of the cardiac plexus that accompanies branches of the coronary arteries on the posteroinferior surface of the heart. (05 Mar 2000) |
| posterior costotransverse ligament | <anatomy> The short quadrangular ligament, actually a thickening of the posterior aspect of the costotransverse joint, extending from the tip of the transverse process to the posterior surface of the neck of the rib. Synonym: ligamentum costotransversarium laterale, ligamentum costotransversarium posterius, ligamentum tuberculi costae, posterior costotransverse ligament. (05 Mar 2000) |
| posterior cranial fossa | The internal base of the skull posterior to the crest of the petrous part of the temporal bones and the dorsum sellae and anterior to the grooves for the transverse sinuses, where the cerebellum, pons, and medulla oblongata rest. Synonym: fossa cranii posterior. (05 Mar 2000) |
| posterior cricoarytenoid ligament | <anatomy> The ligament that passes downward from the posterior border of the arytenoid cartilage to the lamina of the cricoid cartilage. Synonym: ligamentum cricoarytenoideum posterius. (05 Mar 2000) |
| posterior cricoarytenoid muscle | <anatomy, muscle> Origin, depression on posterior surface of lamina of cricoid; insertion, muscular process of arytenoid; action, abducts vocal folds, widening rima glottidis as for taking a breath; nerve supply, recurrent laryngeal. Synonym: musculus cricoarytenoideus posterior. (05 Mar 2000) |
| posterior cruciate | <anatomy> The cruciate ligaments are cross-shaped within the knee joint. The posterior cruciate is deeper (more posterior) within the joint and not as commonly injured as the anterior cruciate. (13 Nov 1997) |
| posterior cruciate ligament | <anatomy> A strong ligament of the knee that originates from the anterolateral surface of the medial condyle of the femur, passes posteriorly and inferiorly between the condyles, and attaches to the posterior intercondylar area of the tibia. (12 Dec 1998) |
| posterior crural region | The back of the leg. Synonym: regio cruralis posterior, posterior crural region, posterior surface of leg. (05 Mar 2000) |
| posterior crus of stapes | The posterior of the two delicate limbs of the stapes that connect the head and base or footplate of the bone. Synonym: crus posterius stapedis, posterior limb of stapes. (05 Mar 2000) |
| posterior cubital region | The back of the elbow. Synonym: facies cubitalis posterior, regio cubitalis posterior, posterior cubital region, posterior surface of elbow. (05 Mar 2000) |
| posterior cusp of atrioventricular valve | The posterior leaflet of either the tricuspid or mitral valves. Synonym: cuspis posterior valvae atrioventricularis dextrae/sinistrae. (05 Mar 2000) |
| posterior cutaneous nerve of arm | <anatomy, nerve> A branch of the radial nerve supplying the skin of the posterior surface of the arm. Synonym: nervus cutaneus brachii posterior, posterior cutaneous nerve of arm. (05 Mar 2000) |
| posterior cutaneous nerve of forearm | <anatomy, nerve> A branch of the radial nerve supplying the skin of the dorsal surface of the forearm. Synonym: nervus cutaneus antebrachii posterior, posterior cutaneous nerve of forearm. (05 Mar 2000) |