(a.) Rising or swelling into a spherical or rounded form; regularly protuberant or bulging; -- said of a spherical surface or curved line when viewed from without, in opposition to concave.
(n.) A convex body or surface.
Example Sentences:
(1) Seventy-eight patients presented optochiasmal arachnoiditis: 12 had trigeminal neuralgia; 1, arachnoiditis of the cerebellopontile angle; 6, arachnoiditis of the convex surface of the brain; and 3, the hypertensive hydrocephalic syndrome due to occlusion of the CSF routes.
(2) The intervertebral discs expand centrally and become increasingly convex.
(3) Rocking the hepatocyte-splenocyte cultures changed the elution profile from linear to convex.
(4) Lower density foams can be used only if the impact test standards are rewritten with less emphasis on impacts with convex and pointed objects.
(5) A solution of a specific ligand molecule of constant concentration is introduced into the cell so that its concentration in the cell increases continuously (as in a mixing chamber for forming a convex gradient).
(6) Rotations toward the convexity occur in rotational kyphosis.
(7) The patient's soft-tissue profile was normally convex.
(8) The case of a 49-year-old female with a left parietal convexity meningioma associated with an acute subdural hematoma is described.
(9) This change in shape varied from a slight flattening of the LV and IVS during diastole to total reversal of the normal direction of septal curvature such that the IVS became concave toward the RV and convex toward the LV.
(10) The technique combines the conventional plotting the contour lines and the highlighting, by means of hatching, of the concavities (or convexities) of the 'surface' representative of radioactive distribution.
(11) Ablations of the entire dorsal convexity, and of the mesial and cingulate regions of the cortex, failed to interfere with the spindle bursts and recruiting responses, whereas ablations confined to the orbital cortex alone abolished completely these potentials in the cortex and thalamus.
(12) The method uses overlapping of Pi1, 3 and 4 in perfect centering of the lens in the axis of the eye (it is assessed by drawing a perpendicular line on the centre of the cornea) and marked dislocation of Pi3 in the direction of decentration of the planoconvex lens with the convexity facing the cornea.
(13) In the trunk, e.g., in the buttock and the breast, it is useful to reconstruct the natural convexity.
(14) Rats with spinal deformity showed an imbalance of the paraspinal muscles when assessed by EMG; this was expressed by an increase of muscular activity on the convex side.
(15) The diagnostic criteria of median nerve compression (carpal tunnel syndrome) include morphological and signal changes in the nerve, abnormal palmar convexity of the flexor retinaculum and signs of tenosynovitis of the intracarpal flexor tendons.
(16) Microvillus formation was not observed when cell volume was increased by incubation of tissue in half-normal amphibian Ringer's solution for 30 min, or with exposure to acetylcholine, which caused accentuation of the convexity of the apical surface of the granular cell similar to that observed with VP-induced osmotic water flow.
(17) Meningiomas of the convexities (six patients) turned out to be particularly susceptible to complete embolizations.
(18) The granulomatous lesions were classified by location into basilar, convexity, intrahemispheric, and periventricular white-matter involvement.
(19) One exception to this is observed in the brain, where arteries come in from the base and veins collect over the convexity.
(20) The shapes of false lumina assessed by enhanced CT scans at the time of discharge were categorized in three types; 21 patients (group A) without false lumina of the aorta, or with a small crescentic false lumen in the thoracic aorta (type a), six patients (group B) with intimal flaps and two contrast-material-filled lumina in the thoracic aorta (type b), and nine patients (group C) with expanded false lumina or a false lumen whose margin was convex towards a true lumen in the thoracic aorta (type c).
Trapezoid
Definition:
(n.) A plane four-sided figure, having two sides parallel to each other.
(n.) A bone of the carpus at the base of the second metacarpal, or index finger.
(a.) Having the form of a trapezoid; trapezoidal; as, the trapezoid ligament which connects the coracoid process and the clavicle.
(a.) Of or pertaining to the trapezoid ligament; as, the trapezoid line.
Example Sentences:
(1) Proenkephalin A-related immunoreactive neuronal perikarya were detected in the central gray, reticular formation, nucleus raphes, trapezoid body, nucleus parabrachialis lateralis and medialis, nucleus spinalis nervi trigemini, nucleus dorsalis nervi vagi, and in the nucleus tractus solitarii.
(2) From the tissue distribution of 800 microCi MAb E48, the absorbed cumulative radiation doses of tumour and various organs were calculated using the trapezoid integration method for the area under the curve.
(3) The responses of afferents were further studied using sinusoidal and trapezoidal stimuli aligned as closely as possible with the orientation of their response vector.
(4) The trapezoidal shape of the vertebrae and scarring of the soft tissues within the concavity made correction difficult.
(5) From plasma drug concentration-time data, best estimates for the bioavailability parameters of peak plasma phenobarbital concentration (Cmax) and time to peak concentration (tmax) were obtained by curve fitting and area under the plasma drug concentration-time curve (AUC) computed with the trapezoid rule.
(6) At low pH, it is theorized that the trapezoidal profile of the dimer is shifted to a more rectangular configuration such that flat ribbons are formed by the lateral association of dimers.
(7) DYN B cell bodies were present in nonpyramidal cells of neo- and allocortices, medium-sized cells of the caudate-putamen, nucleus accumbens, lateral part of the central nucleus of the amygdala, bed nucleus of the stria terminalis, preoptic area, and in sectors of nearly every hypothalamic nucleus and area, medial pretectal area, and nucleus of the optic tract, periaqueductal gray, raphe nuclei, cuneiform nucleus, sagulum, retrorubral nucleus, peripeduncular nucleus, lateral terminal nucleus, pedunculopontine nucleus, mesencephalic trigeminal nucleus, parabigeminal nucleus, dorsal nucleus of the lateral lemniscus, lateral superior olivary nucleus, superior paraolivary nucleus, medial superior olivary nucleus, ventral nucleus of the trapezoid body, lateral dorsal tegmental nucleus, accessory trigeminal nucleus, solitary nucleus, nucleus ambiguus, paratrigeminal nucleus, area postrema, lateral reticular nucleus, and ventrolateral region of the reticular formation.
(8) Degenerative changes in the scapho-trapezial-trapezoidal (ST) joint may occur as an isolated process or more frequently as a dominant part of pantrapezial degenerative joint affections.
(9) The majority of units were recorded in the ventral component of the trapezoid body.
(10) They can be summarized as: mesial shifting of the maxilla, dimensional increase of the mandibular body, ovoidal upper arch with a deeper palatal vault, tapering or trapezoidal lower arch.
(11) The AUC-integrated concentration was significantly higher than the AUC-trapezoid.
(12) Principal cells in the medial nucleus of the trapezoid body (MNTB) are believed to be critical components in the circuit subserving sound localization.
(13) The lowest threshold values for current strength, energy and charge were observed when defibrillating the heart by means of rectangular impulses and especially by trapezoidal impulses with ascending slope.
(14) That means that rectangular or trapezoidal impulses with an ascending slope may be most conveniently used for cardiac defibrillation.
(15) Two femoral neck fractures ten years following Trapezoidal-28 THA have recently been referred to our clinic.
(16) Therefore, the velocity profile is "trapezoidal" rather than parabolic at all times during the pulsation period.
(17) Trapezoidal and triangular gradient lobe shapes are analyzed.
(18) The authors report a case of posterior dislocation of the trapezoid bone together with the second metacarpal.
(19) 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%.
(20) The trapezoid compression frame is recommended as an alternative to conventional methods of treating unstable fractures and dislocations of the pelvic girdle.