(1) The calculation has shown that the rounding of one of the angles of interference rhombus and its displacement towards the centre of the picture speak about either a functional deficiency of a muscle inserted into the eye ball in this place or about displacement of the point of its insertion from the limbus along the meridian of its action; displacement of one the angles of interference rhombus from the meridian speaks about displacement of the point of efforts exertion of the corresponding muscle into the same direction.
(2) Examination of eyes in a polarized light in 108 children and 24 adults with congenital concomitant convergent squint with a vertical component has shown displacement of internal angles of the rhombus of interference pictures from the horizontal axis, this speaking about anomaly of internal rectus muscles insertion.
(3) Antemolar rhombus (the anterior part of the intermolar palate) of adult Wistar rat was employed as experimental area.
(4) n. from Pungitius pungitius is near to M. paragasterostei but differs from it by the rhombus form of the spore, by less dimension of polar capsules.
(5) The figure of tetrahedron is formed in certain species of Plectus and in Tobrilus gracilis at the stage of 4 blastomeres rather than a rhombus which is formed in most highly organized nematodes.
(6) This result is taken to mean that the equilibrium constant between the two free enzyme forms (the 'circle' and the 'rhombus') is strongly dependent on temperature.
(7) If hexokinase is mixed at 4 degrees C with glucose 6-phosphate a slow increase in fluorescence of tryptophanyl residues is observed, which indicates that the 'rhombus' conformation accumulates under these conditions.
(8) Optical diffraction analysis revealed that the morphological units of both native and self-assembled S layer were essentially identical and composed of a rhombus possessing each side of 8.1 nm and interior angle of 88 degrees.
(9) Advisers to Thatcher suggested she carry a handbag and soften her voice, while Merkel got highlights, a more relaxed hairstyle and learned to deal with the issue of how to look in control by holding her hands in a rhombus shape in front of her stomach, now her trademark gesture.
(10) A rhombus-shaped skin incision around the thigh and calf, originally described by Kotz and Salzer, led to a significant discrepancy of the circumference of the proximal and distal skin borders.
(11) In the former one there are rhombus section files and triangular section files, both more flexible than old square section files.
(12) In the Mediterranean, the parasitic copepod Lepeophtheirus thompsoni Baird, 1850 specifically infests turbot (Psetta maxima L., 1758), whereas L. europaensis Zeddam, Berrebi, Renaud, Raibaut, and Gabrion, 1988 infests brill (Scophthalmus rhombus L., 1758) and flounder (Platichthys flesus L., 1758).
(13) The analysis of the Nematoda's embryogenesis allows to conclude that tetrahedron, rhombus as well as some other figures play the role of preblastula sustaining the most expedient disposition of the first blastomers for transition to the formation of the blastula.
(14) The most manifested changes in the sinus structure are noted in waterfowl and diving birds, that spend much time in flight, in dendrocolaptidae and in day predaceous birds; in them the longitudinal sinus forms a rhombus.
(15) In the most frequently observed projection form four intensity maxima were arranged at the corners of a rhombus; a cleft along the longitudinal axis of individual protomers could often be discerned.
Trapezium
Definition:
(n.) A plane figure bounded by four right lines, of which no two are parallel.
(n.) A bone of the carpus at the base of the first metacarpal, or thumb.
(n.) A region on the ventral side of the brain, either just back of the pons Varolii, or, as in man, covered by the posterior extension of its transverse fibers.
Example Sentences:
(1) The authors describe three patients in whom this complication occurred after Silastic replacements of the carpal scaphoid and trapezium bones.
(2) The wrist motion remaining after simulated arthrodeses was as follows: capitate-hamate: flexion (Flx) 98%, extension (Ext) 92%, ulnar deviation (UD) 96%, radial deviation (RD) 90%; scaphoid-lunate: Flx 97%, Ext 91%, UD 90%, RD 91%; scaphoid-trapezium-trapezoid: Flx 86%, Ext 88%, UD 67%, RD 69%; scaphoid-lunate-triquetrum: Flx 91%, Ext 82%, UD 86%, RD 70%; capitate-lunate: Flx 70%, Ext 59%, UD 89%, RD 79%; capitate-hamate-triquetrum: Flx 88%, Ext 79%, UD 88%, RD 81%; hamate-triquetrum: Flx 90%, Ext 85%, UD 89%, RD 94%; scaphoid-trapezium-trapezoid-capitate: Flx 85%, Ext 77%, UD 64%, RD 57%.
(3) Twenty-five patients who presented with symptoms of disabling pain secondary to arthritis at the base of thumb had 29 arthroplasties with silicone rubber trapezium implants.
(4) Although the design features of the Niebauer implant offer theoretical advantages for stability and fixation, this study does not demonstrate better results compared with other types of silicone trapezium implants.
(5) Operation, consisting of resection of the trapezium and shortening by 1.5 cm of the abductor pollicis longus tendon was performed on 16 thumbs.
(6) If there is localized uptake in the area of the trapezium, additional radiographic studies may be necessary to confirm or exclude this fracture.
(7) The fracture of the trapezium can prevent the normal mobility of the thumb, and therefore an anatomical reduction is desirable.
(8) Osteoarthritic involvement of more than one of the articular surfaces of the trapezium was found in a group of 31 hands.
(9) The area under each sensitivity gradient was determined using the trapezium rule.
(10) The first point of reference is fixed and consists of a line projected through the radial articular surface of the second metacarpal with the trapezium.
(11) Trapezium-scaphoid-trapezoid subluxations and trapezoid-capitate-scaphoid-trapezium subluxations or dislocations are rare.
(12) The present study deals with patients in whom the diagnostic procedures applied in rhizoid arthrosis were considered to reveal scaphoid-trapezium-trapezoid (STT) arthrosis.
(13) We studied 18 patients ranging in age from 16 years to 57 years who presented 8 to 78 months (average, 31.7 months) after silicone arthroplasty (four scaphoid, six lunate, one scapholunate, four finger, two wrist, one trapezium, and one ulnar head for metacarpal hemiarthroplasty).
(14) Fractures of the body of the trapezium are uncommon.
(15) After excision of the trapezium, a strip from the flexor carpi radialis was wound around the main portion of the flexor carpi radialis tendon and the abductor pollicis longus.
(16) The patients treated by resection of the trapezium and tendon interposition were more satisfied and had less pain than those treated by implantation of a Swanson prosthesis.
(17) Having performed 100 anatomical dissections we found that in the first dorsal compartment of the wrist besides other tendons there are one or two tendons belonging to a musculo-tendinous unit, not yet described, inserting in the trapezium and acting almost together with the other units going to the first metacarpal.
(18) Excision of the trapezium gave good results with respect to pain relief, but there was loss of thumb stability and strength.
(19) Relationships between the younger, single members of staff were purest catnip to us; we were always turning love triangles into love trapeziums.
(20) The physio-pathology of fractures of the trapezium was investigated by personal experiments conducted in the laboratory on 26 wrists and showed 3 main mechanisms: a fall on the hand with the wrist extended and radially deviated (Manon) and direct commissural trauma combined with various degrees of shearing described by Monsche.