| inferior phrenic vein | <anatomy, vein> The vein that drains the substance of the diaphragm and empties on the right side into the inferior vena cava, on the left side into the left suprarenal vein; often a second vein on the left side passes transversely across the diaphragm anterior to the oesophageal hiatus to enter the inferior vena cava. Synonym: vena phrenica inferior. (05 Mar 2000) |
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| inferior pole | For a structure having a vertically-oriented long axis, the point at the lower end of the axis, nearest the soles of the feet; the lowest point of a structure's surface. See: inferior pole of kidney, inferior pole of testis. Synonym: extremitas inferior, inferior extremity. (05 Mar 2000) |
| inferior pole of kidney | The inferior end of the kidney. Synonym: extremitas inferior renis. (05 Mar 2000) |
| inferior pole of testis | The inferior end of the testis. Synonym: extremitas inferior testis. (05 Mar 2000) |
| inferior polioencephalitis | Polioencephalitis with predominantly bulbar paralysis. (05 Mar 2000) |
| inferior posterior serratus muscle | <anatomy, muscle> Origin, with latissimus dorsi, from spinous processes of two lower thoracic and two upper lumbar vertebrae; insertion, into lower borders of last four ribs; action, draws lower ribs backward and downward; nerve supply, ninth to twelfth intercostal. Synonym: musculus serratus posterior inferior, inferior posterior serratus muscle. (05 Mar 2000) |
| inferior pubic ligament | <anatomy> The ligament that arches across the inferior aspect of the pubic symphysis. Synonym: ligamentum arcuatum pubis, inferior pubic ligament. (05 Mar 2000) |
| inferior quadrigeminal brachium | A fibre bundle passing from the inferior colliculus on either side of the brainstem along the lateral border of the superior colliculus to the posterior part of the thalamus where it enters the medial geniculate body. It forms part of the major ascending auditory pathway. Synonym: brachium colliculi inferioris, brachium quadrigeminum inferius, inferior quadrigeminal brachium. (05 Mar 2000) |
| inferior radioulnar joint | The pivot synovial joint between the head of the ulna and the ulnar notch on the radius; an articular disk passes across the distal part of the joint. Synonym: articulatio radioulnaris distalis, distal radioulnar articulation, inferior radioulnar joint. (05 Mar 2000) |
| inferior rectal artery | <anatomy, artery> Origin, internal pudendal; distribution, anal canal, muscles and skin of the anal region, and skin of the buttock; anastomoses, middle rectal, perineal, and gluteal. Synonym: arteria rectalis inferior, inferior haemorrhoidal artery. (05 Mar 2000) |
| inferior rectal nerves | Several branches of the pudendal nerve that pass to the external and sphincter anoderm and skin of the anal region. Synonym: nervi rectales inferiores, inferior haemorrhoidal nerves. (05 Mar 2000) |
| inferior rectal plexuses | The autonomic plexus's along the anus derived from the inferior hypogastric plexus. Synonym: plexus rectales inferiores, inferior haemorrhoidal plexuses. (05 Mar 2000) |
| inferior rectal veins | Veins that pass to the internal pudendal vein from the inferior rectal venous plexus around the anal canal. Synonym: venae rectales inferiores. (05 Mar 2000) |
| inferior rectus | <anatomy, muscle> Origin, inferior part of the common tendinous ring; insertion, inferior part of sclera of the eye; action, primary, depression; secondary, adduction and extorsion; nerve supply, oculomotor (inferior branch). Synonym: musculus rectus inferior. (05 Mar 2000) |
| inferior retinaculum of extensor muscles | A Y-shaped ligament restraining the extensor tendons of the foot distal to the ankle joint. Synonym: retinaculum musculorum extensorum inferius, cruciate ligament of leg, inferior retinaculum of extensor muscles, ligamentum cruciatum cruris. (05 Mar 2000) |