| ADN | antideoxyribonuclease; aortic depressor nerve; associate degree in nursing |
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| AIN | acute interstitial nephritis; American Institute of Nutrition; anterior interosseous nerve |
| AIPFP | acute idiopathic peripheral facial nerve palsy |
| AIS | Abbreviated Injury Scale; amniotic infection syndrome; androgen insensitivity syndrome; anterior int... |
| ANAS | anastomosis; auditory nerve activating substance |
| lateral plantar artery | <anatomy, artery> Larger of the two terminal branches of the posterior tibial; distribution, forms the plantar arch and through it supplies the sole of the foot and plantar surfaces of the toes; anastomoses, medial plantar, dorsalis pedis. Synonym: arteria plantaris lateralis. (05 Mar 2000) |
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| lateral plate | A nonsegmented mass of mesoderm on the lateral periphery of the embryonic disk. (05 Mar 2000) |
| lateral plate mesoderm | The peripheral thinned-out portion of intraembryonic mesoderm which is continuous with the extraembryonic mesoderm beyond the margins of the embryonic disk; in it develops the intraembryonic celom. Synonym: lateral mesoderm. (05 Mar 2000) |
| lateral plate of pterygoid process | The larger and more lateral of the two bony plates extending downward from the point of union of the body and greater wing of the sphenoid bone on either side; forms medial wall of intfratemporal fossa and gives origin to pterygoi muscles. Synonym: lamina lateralis processus pterygoidei, lateral plate of pterygoid process. (05 Mar 2000) |
| lateral pole | The rounded lateral end of the ovary, usually directed toward the infundibulum of the uterine tube. Synonym: extremitas tubaria ovarii, lateral pole. (05 Mar 2000) |
| lateral preoptic nucleus | A vaguely defined group of nerve cells in the lateral zone of the preoptic region. Synonym: nucleus preopticus lateralis. (05 Mar 2000) |
| lateral process of calcaneal tuberosity | The lateral projection from the posterior part of the calcaneus. Synonym: processus lateralis tuberis calcanei. (05 Mar 2000) |
| lateral process of malleus | A short projection from the base of the manubrium of the malleus, attached firmly to the drum membrane. Synonym: processus lateralis mallei, processus brevis, short process of malleus, tuberculum mallei. (05 Mar 2000) |
| lateral process of talus | A projection on the lateral side of the talus below the malleolar articular surface. Synonym: processus lateralis tali. (05 Mar 2000) |
| lateral projection | Radiographic projection with the X-ray beam in a coronal plane. (05 Mar 2000) |
| lateral proprius bundle | lateral proprius bundle |
| lateral pterygoid | <anatomy, muscle> Origin, inferior head from lateral lamina of pterygoid process; superior head from infratemporal crest and adjacent greater wing of the sphenoid; insertion, into pterygoid pit of mandible and articular disk; action, brings jaw forward, opens jaw; nerve supply, nerve to lateral pterygoid from mandibular division of trigeminal. Synonym: musculus pterygoideus lateralis, external pterygoid muscle, musculus pterygoideus externus. (05 Mar 2000) |
| lateral pterygoid plate | The larger and more lateral of the two bony plates extending downward from the point of union of the body and greater wing of the sphenoid bone on either side; forms medial wall of intfratemporal fossa and gives origin to pterygoi muscles. Synonym: lamina lateralis processus pterygoidei, lateral plate of pterygoid process. (05 Mar 2000) |
| lateral puboprostatic ligament | See: puboprostatic ligament. Synonym: lateral puboprostatic ligament. (05 Mar 2000) |
| lateral pyramidal fasciculus | Those fibres of the pyramidal tract that cross to the opposite side in the pyramidal decussation and descend in the dorsal half of the lateral funiculus of the spinal cord; they are distributed throughout the length of the spinal cord to interneurons of the zona intermedia of the spinal gray matter. See: pyramidal tract. Synonym: tractus corticospinalis lateralis, tractus pyramidalis lateralis, crossed pyramidal tract, fasciculus corticospinalis lateralis, fasciculus pyramidalis lateralis, lateral corticospinal tract, lateral pyramidal fasciculus. (05 Mar 2000) |