| LPS | lateral premotor system; levator palpebrae superioris [muscle]; linear profile scan; lipase; lipopol... |
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| LPW | lateral pharyngeal wall |
| LRN | lateral reticular nucleus |
| LS | lateral suspensor; left sacrum; left septum; left side; legally separated; leiomyosarcoma; length of... |
| LSO | lateral superior olive; left salpingo-oophorectomy; left superior oblique; lumbosacral orthosis |
| fossa malleoli fibulae | A large rough depression on the medial aspect of the lower end of the fibula just behind the articular facet for the talus giving attachment to the posterior talofibular and the transverse tibiofibular ligaments. Synonym: fossa malleoli lateralis, digital fossa, fossa malleoli fibulae. (05 Mar 2000) |
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| fossa malleoli lateralis | A large rough depression on the medial aspect of the lower end of the fibula just behind the articular facet for the talus giving attachment to the posterior talofibular and the transverse tibiofibular ligaments. Synonym: fossa malleoli lateralis, digital fossa, fossa malleoli fibulae. (05 Mar 2000) |
| fossa mandibularis | A deep hollow in the squamous portion of the temporal bone at the root of the zygoma, in which rests the condyle of the mandible. Synonym: cavitas glenoidalis, fossa mandibularis, articular fossa of temporal bone, glenoid cavity, glenoid fossa, glenoid surface. (05 Mar 2000) |
| fossa navicularis auriculae | The depression at the upper part of the auricle between the two crura of the anthelix. Synonym: fossa triangularis, fossa navicularis auriculae. (05 Mar 2000) |
| fossa navicularis auris | Outmoded term for scapha. (05 Mar 2000) |
| fossa navicularis Cruveilhier | A boat-shaped hollow. A longitudinal hollow on the posterior surface of the superior portion (root) of the medial pterygoid plate; it gives origin to the tensor veli palati muscle. Synonym: fossa scaphoidea ossis sphenoidalis, Cruveilhier's fossa, fossa navicularis Cruveilhier, scaphoid fossa of sphenoid bone. Synonym: scapha. (05 Mar 2000) |
| fossa navicularis urethrae | The terminal dilated portion of the urethra in the glans penis. Synonym: fossa navicularis urethrae, fossa terminalis urethrae, Morgagni's fossa, Morgagni's fovea. (05 Mar 2000) |
| fossa navicularis vestibulae vaginae | The portion of the vestibule of the vagina between the frenulum of the labia minora and the posterior labial commissure of the vulva. Synonym: fossa vestibuli vaginae, fossa navicularis vestibulae vaginae, vestibular fossa. (05 Mar 2000) |
| fossa of anthelix | The depression on the medial surface of the auricle that corresponds to the anthelix. Synonym: fossa anthelicis, periconchal sulcus. (05 Mar 2000) |
| fossa of ductus venosus | A wide groove located posteriorly on the undersurface of the foetal liver between the caudate and left lobes; it lodges the ductus venosus and becomes the fissure of the ligamentum venosum in the adult. Synonym: fossa ductus venosi. (05 Mar 2000) |
| fossa of helix | 1. The longitudinal furrow between the helix and the antihelix of the auricle. Synonym: fossa of helix, scaphoid fossa. 2. Obsolete term for scaphoid fossa. Origin: L. Fr. G. Skaphe, skiff (05 Mar 2000) |
| fossa of lacrimal gland | A hollow in the orbital plate of the frontal bone, formed by the overhanging margin and zygomatic process, lodging the lacrimal gland. Synonym: fossa glandulae lacrimalis, fossa of lacrimal gland. (05 Mar 2000) |
| fossa of lacrimal sac | A fossa formed by the lacrimal bone and the frontal process of the maxilla, lodging the lacrimal sac. Synonym: fossa sacci lacrimalis. (05 Mar 2000) |
| fossa of Sylvius | The deep depression of the basal surface of the forebrain that corresponds in position to the anterior perforated substance. Bounded medially by the optic tract and rostrally by the orbital surface of the frontal lobe, it extends laterally around the overhanging pole of the temporal lobe into the Sylvian fissure (sulcus lateralis). Synonym: fossa lateralis cerebri, fossa of Sylvius, lateral fossa of brain, vallecula sylvii. (05 Mar 2000) |
| fossa of vestibule of vagina | The portion of the vestibule of the vagina between the frenulum of the labia minora and the posterior labial commissure of the vulva. Synonym: fossa vestibuli vaginae, fossa navicularis vestibulae vaginae, vestibular fossa. (05 Mar 2000) |