| ciliary ganglionic plexus | An autonomic plexus lying on the ciliary muscle, derived from the oculomotor, trigeminal, and sympathetic. Synonym: plexus gangliosus ciliaris. (05 Mar 2000) |
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| middle sacral plexus | A lymphatic plexus formed of lymph nodes and connecting vessels situated chiefly in the mesorectum anterior and inferior to the sacral promontory. Synonym: plexus sacralis medius. (05 Mar 2000) |
| middle trunk of brachial plexus | The continuation of the ventral ramus of the seventh cervical nerve; it contributes fibres to the posterior and lateral cords (fasciculi) of the brachial plexus. Synonym: truncus medius plexus brachialis. (05 Mar 2000) |
| phrenic plexus | Plexus phrenicus, an autonomic plexus surrounding the inferior phrenic artery. (05 Mar 2000) |
| Walther's plexus | <anatomy> The portion of the internal carotid plexus in the cavernous sinus. Synonym: plexus cavernosus, Walther's plexus. (05 Mar 2000) |
| coccygeal plexus | A small plexus formed by the fifth sacral and the coccygeal nerves; it gives origin to the anococcygeal nerves. Synonym: plexus coccygeus. (05 Mar 2000) |
| common carotid plexus | An autonomic plexus accompanying the artery of the same name formed by fibres from the middle cervical ganglion. Synonym: plexus caroticus communis. (05 Mar 2000) |
| communicating branch of facial nerve with tympanic plexus | A fine branch of facial nerve joining the tympanic branch of the glossopharyngeal nerve. Synonym: ramus communicans nervi facialis cum plexu tympanico. (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) |
| plexus arteriae cerebri mediae | <anatomy, artery> An autonomic plexus accompanying the middle cerebral artery, derived from the internal carotid plexus. Synonym: plexus arteriae cerebri mediae. (05 Mar 2000) |