| NNP | neonatal nurse practitioner; nerve net pulse |
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| NR | do not repeat [Lat. non repetatur]; nerve root; neural retina; neutral red; noise reduction; nonreac... |
| NTV | nerve tissue vaccine |
| OMN | oculomotor nerve |
| ON | occipitonuchal; office nurse; onlay; optic nerve; orthopedic nurse; osteonecrosis; osteonectin; over... |
| prostaticovesical plexus | A venous plexus which includes the prostatic venous plexus around the prostate gland and that of the neck of the bladder; it communicates with the vesical and pudendal plexus's, receives the deep dorsal vein of the penis, and empties. By one or more efferent vessels into the internal iliac (hypogastric) vein; it corresponds to the inferior vesical plexus in the female. Synonym: plexus prostaticovesicalis. (05 Mar 2000) |
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| prostatic plexus | An autonomic plexus of nerves intimately associated with the capsule of the prostate, derived from the inferior hypogastric plexus, and giving rise to the cavernous nerves to the erectile tissue of the penis; surgical injury of this plexus ofter results in impotency. Synonym: plexus prostaticus. (05 Mar 2000) |
| prostatic venous plexus | A venous plexus, arising chiefly from the dorsal vein of the penis, situated below the base of the bladder at the sides of the prostate. See: prostaticovesical plexus. Synonym: plexus venosus prostaticus, plexus pudendalis, Santorini's labyrinth. (05 Mar 2000) |
| sciatic plexus | Formed by the fourth and fifth lumbar (lumbosacral trunk) and first, second, and third sacral nerves; it lies on the inner surface of the posterior wall of the pelvis usually embedded in the piriformis muscle; its nerves supply the lower limbs, its major product being the sciatic nerve. Synonym: plexus sacralis, ischiadic plexus, sciatic plexus. (05 Mar 2000) |
| pterygoid plexus | A venous plexus occupying the infratemporal fossa receiving veins accompanying the branches of the maxillary artery, and terminating posteriorly in the maxillary vein; anteriorly the pterygoid plexus drains via the deep facial vein into the facial vein. Synonym: plexus pterygoideus. (05 Mar 2000) |
| pulmonary plexus | One of two autonomic plexus's, anterior and posterior, at the hilus of each lung, formed by cardiopulmonary splanchnic nerves of the sympathetic trunk and bronchial branches of the vagus nerve; from them various branches accompany the bronchi and arteries into the lung. Synonym: plexus pulmonalis. (05 Mar 2000) |
| hypogastric plexus | A complex network of nerve fibres in the pelvic region. The hypogastric plexus distributes sympathetic fibres from the lumbar paravertebral ganglia and the aortic plexus, parasympathetic fibres from the pelvic nerve, and visceral afferents. The bilateral pelvic plexus is in its lateral extent. (12 Dec 1998) |
| solar plexus | coeliac (nervous) plexus |
| spermatic plexus | The autonomic plexus derived from the aortic plexus and accompanying the testicular artery. Synonym: plexus testicularis, spermatic plexus. (05 Mar 2000) |
| splenic plexus | The plexus of autonomic nerves along the splenic artery. Synonym: plexus lienalis, plexus splenicus. (05 Mar 2000) |
| Stensen's plexus | The venous network surrounding the parotid (Stensen's) duct. (05 Mar 2000) |
| stroma plexus | A plexus of nerves in the parenchyma of the cornea consisting of the primary or deep plexus, in the substance of the cornea, and the subbasal or superficial plexus just beneath the anterior limiting membrane. (05 Mar 2000) |
| subclavian periarterial plexus | The autonomic plexus accompanying the artery of this name, formed by fibres from the stellate ganglion, and giving off secondary plexus's along the branches of the subclavian. Synonym: plexus subclavius, subclavian plexus. (05 Mar 2000) |
| subclavian plexus | The autonomic plexus accompanying the artery of this name, formed by fibres from the stellate ganglion, and giving off secondary plexus's along the branches of the subclavian. Synonym: plexus subclavius, subclavian plexus. (05 Mar 2000) |
| submucosal plexus | A gangliated plexus of unmyelinated nerve fibres, derived chiefly from the superior mesenteric plexus, ramifying in the intestinal submucosa. Synonym: plexus submucosus, Meissner's plexus, Remak's plexus. (05 Mar 2000) |