| plexiform layers of retina | Layer's of the retina where synapses occur; in the external layer, processes of rods and cones synapse with bipolar neuron dendrites; in the internal layer, axon terminals of bipolar cells synapse with ganglion cell dendrites. See: retina. Synonym: stratum plexiforme externum et internum retinae. (05 Mar 2000) |
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| plexiform neuroma | plexiform neurofibroma |
| pleximeter | <medicine> A small, hard, elastic plate, as of ivory, bone, or rubber, placed in contact with body to receive the blow, in examination by mediate percussion. Alternative forms: plexometer. Origin: Gr. Stroke, percussion (from to strike). Source: Websters Dictionary (01 Mar 1998) |
| plexitis | Inflammation of a plexus. (05 Mar 2000) |
| plexogenic | Giving rise to weblike or plexiform structures. Origin: plexus + G. -gen, producing (05 Mar 2000) |
| plexogenic pulmonary arteriopathy | <syndrome> Sclerosis of the pulmonary arteries in chronic cor pulmonale; associated with severe cyanosis, it is a condition resembling polycythemia vera but resulting from primary pulmonary arteriosclerosis or primary pulmonary hypertension and characterised by plexiform lesions of arterioles. Synonym: Ayerza's disease, cardiopathia nigra, plexogenic pulmonary arteriopathy. (05 Mar 2000) |
| plexometer | An oblong flexible plate used in mediate percussion by being placed against the surface and struck with the plessor. Synonym: pleximeter, plexometer. Origin: G. Plesso, to strike, + metron, measure (05 Mar 2000) |
| plexopathy | <pathology> Any disease or disorder affecting a network of nerves or blood vessels. Origin: Gr. Pathos = disease (09 Oct 1997) |
| plexor | Synonym: plessor. Origin: G. Plexis, a stroke (05 Mar 2000) |
| plexus | A network or tangle, a general term for a network of lymphatic vessels, nerves or veins. (18 Nov 1997) |
| plexus annularis | A nerve plexus near the corneoscleral junction from which myelinated and unmyelinated nerves pass to the cornea. Synonym: plexus annularis. (05 Mar 2000) |
| plexus aorticus | A plexus of lymph nodes and connecting vessels lying along the lower portion of the abdominal aorta. Synonym: plexus aorticus. (05 Mar 2000) |
| plexus aorticus abdominalis | <anatomy, neurology> An autonomic plexus surrounding the abdominal aorta, directly continuous with the thoracic aortic plexus above and continued inferior to the bifurcation of the aorta as the superior hypogastric plexus. Synonym: plexus aorticus abdominalis. (05 Mar 2000) |
| plexus aorticus thoracicus | Areolar venous plexus, a venous plexus in the areola surrounding the nipple, formed by the mammary veins, and sending its blood to the lateral thoracic vein. Synonym: plexus venosus areolaris, circulus venosus halleri, Haller's circle, vascular circle, venous circle of mammary gland, thoracic aortic plexus. (05 Mar 2000) |
| plexus arteriae cerebri anterioris | <anatomy, artery> An autonomic plexus accompanying the anterior cerebral artery, derived from the internal carotid plexus. Synonym: plexus arteriae cerebri anterioris. (05 Mar 2000) |