| LRN | lateral reticular nucleus |
|---|---|
| LVN | lateral ventricular nerve; lateral vestibular nucleus; Licensed Visiting Nurse; Licensed Vocational ... |
| MGN | medial geniculate nucleus; membranous glomerulonephritis |
| MIN | medial interlaminar nucleus |
| MSN | main sensory nucleus; Master of Science in Nursing; mildly subnormal |
| pars lateralis ossis occipitalis | The part of the occipital bone that lies on either side of the foramen magnum. Synonym: pars lateralis ossis occipitalis, exoccipital bone. (05 Mar 2000) |
|---|---|
| pars lateralis ossis sacri | The lateral mass of the sacrum formed by the fused costal elements. Synonym: pars lateralis ossis sacri. (05 Mar 2000) |
| pars lateralis rami lobi medii venae pulmonalis dexter superior | lateral part of middle lobar branch of right superior pulmonary vein |
| pars lumbalis diaphragmatis | The portion of the diaphragm that arises from the upper lumbar vertebrae and from the medial and lateral arcuate ligaments. See: right crus of diaphragm, left crus of diaphragm, lateral arcuate ligament, medial arcuate ligament. Synonym: pars lumbalis diaphragmatis, vertebral part of diaphragm. (05 Mar 2000) |
| pars lumbalis medullae spinalis | lumbar part |
| pars marginalis musculi orbicularis oris | <anatomy> The part of the orbicularis oris muscle located in the margin of the lips, i.e., the red area. Synonym: pars marginalis musculi orbicularis oris. (05 Mar 2000) |
| pars mastoidea ossis temporalis | The portion of the petrous part of the temporal bone bearing the mastoid process. Synonym: pars mastoidea ossis temporalis. (05 Mar 2000) |
| pars medialis arcus pedis longitudinalis | pars medialis arcus pedis longitudinalis |
| pars medialis musculorum intertransversariorum posteriorum cervicis | pars medialis musculorum intertransversariorum posteriorum cervicis |
| pars medialis rami lobii medii venae pulmonis dextrae superioris | medial part of middle lobar branch of right superior pulmonary vein |
| pars mediastinalis pulmonis | The part of the medial surface of a lung in contact with the mediastinum. Synonym: pars mediastinalis pulmonis, facies mediastinalis pulmonis, mediastinal part of lung. (05 Mar 2000) |
| pars membranacea septi atriorum | The small part of the membranous septum of the heart just above the septal cusp of the tricuspid valve that separates the right atrium from the left ventricle. Synonym: septum atrioventriculare, pars membranacea septi atriorum. (05 Mar 2000) |
| pars membranacea septi interventricularis | Part of the fibrous skeleton of the heart which is seen as a small, thin, round or oval nonmuscular area at the superior end of the interventricular septum; it lies just below and is continuous with the portion of the fibrous ring of the aortic valve supporting the anterior and posterior cusps, and with the right fibrous trigone; the atrioventricular bundle of conducting tissue courses along its dorsal margin and bifurcates at its inferior margin into the right and left crura. Synonym: pars membranacea septi interventricularis, membranous septum, septum membranaceum ventriculorum. (05 Mar 2000) |
| pars membranacea septi nasi | The small portion of the nasal septum anterior to the portion supported by the cartilage of the nasal septum. Synonym: pars membranacea septi nasi, membranous septum. (05 Mar 2000) |
| pars membranacea urethrae masculinae | The portion of the male urethra, about 1 cm in length, extending from the prostate to the beginning of the urethra in the corpus spongiosum just beyond the bulb. Synonym: pars membranacea urethrae masculinae, membranous urethra. (05 Mar 2000) |