| rational surface | <physics> Magnetic flux surface where the ratio of toroidal to poloidal field strengths is a rational number, this means that a particle travelling along this surface makes an integer number of turns in each direction and then its orbit closes in on itself. The result is that the particle does not sample the entire flux surface in its motion, which is important for various technical reasons (which mostly result in reduced confinement). See: magnetic island. (09 Oct 1997) |
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| ventral surface of digit | The flat of the fingers; the flexor or anterior surface of the fingers. Synonym: facies digitalis ventralis, facies digitalis palmaris, ventral surface of digit. (05 Mar 2000) |
| receptors, cell surface | Cell surface proteins that bind signalling molecules external to the cell with high affinity and convert this extracellular event into one or more intracellular signals that alter the behaviour of the target cell. Cell surface receptors, unlike enzymes, do not chemically alter their ligands. (12 Dec 1998) |
| vertebral part of the costal surface of the lungs | The part of the medial surface of the lung in contact with the vertebral bodies. Synonym: pars vertebralis faciei costalis pulmonis. (05 Mar 2000) |
| carpal articular surface of radius | The biconcave distal surface of the radius for articulation with the scaphoid bone laterally and the lunate medially. Synonym: facies articularis carpi radii. (05 Mar 2000) |
| vesical surface of uterus | The surface of the uterus facing the bladder and separated from it by the uterovesical pouch of peritoneum. Synonym: facies vesicalis uteri. (05 Mar 2000) |
| masticating surface | That portion of the surface of a denture that makes contact or near contact with the corresponding surface of an opposing denture or tooth. Synonym: facies occlusalis dentis, facies masticatoria, grinding surface, masticating surface, masticatory surface, occlusal surface. (05 Mar 2000) |
| masticatory surface | That portion of the surface of a denture that makes contact or near contact with the corresponding surface of an opposing denture or tooth. Synonym: facies occlusalis dentis, facies masticatoria, grinding surface, masticating surface, masticatory surface, occlusal surface. (05 Mar 2000) |
| vestibular surface of tooth | The surface of a tooth that faces the buccal or labial mucosa of vestibule of the mouth; opposite to the lingual surface of tooth. Synonym: facies vestibularis dentis, facies facialis dentis, buccal surface, facial surface of tooth, facies buccalis, facies labialis, labial surface. (05 Mar 2000) |
| glenoid surface | 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) |
| patellar surface of femur | The groove formed anteriorly between the anterosuperior portions of the femoral condyles that accommodates the patella. Synonym: facies patellaris femoris, trochlea femoris. (05 Mar 2000) |
| medial cerebral surface | It faces, above as well as anterior and posterior to the corpus callosum, the falx cerebri; below it are the mesencephalon and the dura-covered medial wall of the middle cranial fossa. Synonym: facies medialis cerebri, medial cerebral surface. (05 Mar 2000) |
| visceral surface of liver | The posteroinferior surface of the liver that faces adjacent abdominal organs; the porta hepatis and gallbladder are located on this surface. Synonym: facies visceralis hepatis. (05 Mar 2000) |
| visceral surface of the spleen | The surface of the spleen in contact with adjacent viscera. Synonym: facies visceralis splenis. (05 Mar 2000) |
| medial malleolar surface of talus | The surface of the trochlea of the talus that articulates with the medial malleolus of the tibia. Synonym: facies malleolaris medialis tali. (05 Mar 2000) |