What's the difference between biconvex and lentiform?

Biconvex


Definition:

  • (a.) Convex on both sides; as, a biconvex lens.

Example Sentences:

  • (1) Studies of the dorsal ocelli of the wasp Paravespula vulgaris (L.) led to the following results: Under a biconvex corneal lens, 150 microns in thickness, about 600 receptor cells are located.
  • (2) The white disc-like structure in 11 cases was composed of an anterior, stiff, bulgy, biconvex structure combined with a posterior flattened portion that grossly was incorrectly determined to be part of the disc, but that was identified histologically as a posterior disc attachment that had undergone adaptive change characterized by connective tissue hyalinization.
  • (3) Twenty knees that were resurfaced with a patellar button prosthesis and implanted with conventional surgical technique constituted Group A. Twenty knees that were resurfaced with a new biconvex prosthesis and implanted with specially designed instrumentation constituted Group B.
  • (4) The dioptric apparatus of each ommatidia includes a biconvex corneal lens and a spherical crystalline cone that is secreted by two cone cells.
  • (5) Between flattening of kidney and capsular artery or capsule, one may individualize a mass of soft tissue density, convex or biconvex, corresponding to the hematomas.
  • (6) Epidural hematomas demonstrated a high density and a biconvex, lenticular shape.
  • (7) The resolution efficiencies of 31 biconvex silicone intraocular lenses, ranging in power from 16.0 to 23.5 diopters, were tested in air and in water to see if a predictable relationship existed as previously reported with polymethylmethacrylate lenses.
  • (8) Analysis of these medications reveals that the most commonly prescribed combination is the glucocorticoid triamcinolone (unscored white tablets) and the antihistamine chlorpheniramine (coated biconvex orange or red tablets).
  • (9) With capsular fixated IOLs, the features that have a statistically significant impact on reducing PCO include (1) one-piece, all-polymethylmethacrylate (PMMA) IOL styles, (2) a biconvex or posterior convex optic design, and (3) angulated loops.
  • (10) Constant ultrasonographic features include a biconvex, echogenic, intracranial mass adjacent to the inner table of the skull.
  • (11) Flattening of vertebral bodies with biconvex deformity and short tubular bones with irregular epiphyses and metaphyses are the major radiographic features.
  • (12) In healthy children younger than 5 years of age, the thymus had a quadrilateral shape and biconvex lateral contours.
  • (13) The exact positioning of the biconvex, one-piece lens in the bag is the prerequisite for good centration and for an optimal result.
  • (14) In aortic stenosis and idiopathic cardiomyopathy, the septum tends to be biconvex with maximal thickening in its middle third.
  • (15) Laboratory studies have suggested that one-piece, biconvex designs may reduce or delay posterior capsular opacification and that in-the-bag fixation of the posterior chamber IOL may reduce inflammation.
  • (16) Asphericities for five lens shapes; the minimum spherical aberration lens and its reverse form, the equi-biconvex lens, the plano-convex lens and its reverse form are determined.
  • (17) Rat embryos at 9.9 days of gestation, when the neural epithelium is a biconvex plate, and at 10.4 days of gestation, when the cervical neural epithelium has formed the neural tube and when the cephalic neural folds have elevated but not fused, were used.
  • (18) A linear charged coupled device (CCD) image array sensor and a biconvex lens are used to determine the position of the pupil.
  • (19) In transverse section the neural ectoderm is biconvex; the cranial mesenchyme cells beneath them are widely separated by extracellular matrix (ECM) and are joined to each other and to the ectodermal basement membrane by fine cytoplasmic processes and strands of ECM material.
  • (20) A new technique, the frown incision, was developed and a series of 62 eyes with 6 mm and 7 mm incisions for intercapsular phacoemulsification and implantation of a 6 mm or 7 mm one-piece biconvex poly(methyl methacrylate) (PMMA) posterior chamber intraocular lens with single horizontal mattress suture closure was prospectively evaluated for induced astigmatism.

Lentiform


Definition:

  • (a.) Lenticular.

Example Sentences:

  • (1) The PET studies suggest dysfunction of the prefrontal cortex as a result of damage to the lentiform nuclei.
  • (2) This electrophysiological study analyzes the influence of the nucleus of the basal optic root (nBOR) of the avian accessory optic system on units within the lentiform nucleus (LM), which is the avian equivalent of the pretectal nucleus of the optic tract.
  • (3) Caudate atrophy was seen less commonly, and nonspecific focal and symmetric signal abnormalities from the caudate or lentiform nuclei were seen by magnetic resonance imaging in 3 out of 4 cases.
  • (4) Another case of obsessive behaviour as the consequence of lentiform nuclei lesions is reported.
  • (5) Phase-encoding artifacts at the level of the sylvian fissures caused increased noise, obscuring the brain iron in the lentiform nuclei with the TE of 120 msec.
  • (6) T1-weighted images revealed a slight symmetric hypointensity in the lentiform nuclei and thalamus.
  • (7) There was nerve cell loss and gliosis in the thalamus, lentiform nucleus, subthalamic nucleus, red nucleus, midbrain tegmentum, substantia nigra and locus coeruleus.
  • (8) Dystrophic calcification was present in the corticomedullary junction, lentiform nucleus of the basal ganglia, corticomedullary junction, and dentate nucleus of the cerebellum.
  • (9) Obscuration of the lentiform nucleus was thought to be an important early sign of cerebral infarction, including the lentiform nucleus.
  • (10) Microdialysis probes were acutely implanted through indwelling cannulae positioned at several sites above the lentiform nuclei in the conscious primates, and the basal and potassium (100 mM) evoked amino acid levels were monitored for 3 h. These procedures were repeated at fresh sites within the lateral globus pallidus following the induction of parkinsonism with MPTP.
  • (11) One patient with AIDS, examined with CT only, had low density in the lentiform nucleus.
  • (12) Magnetic resonance also demonstrated signal aberrations in the lentiform nuclei and surrounding white matter consistent with iron storage or disordered myelination.
  • (13) The severity of chorea correlated significantly only with lentiform nucleus rCMRGlc.
  • (14) Three pretectal groups (the lentiform thalamic nucleus, the lentiform mesencephalic-pretectal complex and the geniculate pretectal nucleus) give rise to heavy, bilateral tectal projections.
  • (15) MRI of both cases demonstrated lesions with prolonged T1, prolonged T2 and partially shortened T2 in bilateral lentiform nuclei.
  • (16) The sharp transition to normal at the lentiform nucleus previously described on CT was present in only one of the four patients, but was observed in a different patient with cerebral lymphoma and no evidence of HSE and is thus concluded to be less specific than previously thought.
  • (17) in caudate nucleus, lentiform nucleus and upper mid-brain, which showed nerve cell loss in previous pathological studies.
  • (18) In the second case the lesion involved the subcortical and deep structures with destruction of the lentiform nucleus, anterior part of the internal capsule and part of the head of the caudate nucleus, and the clinical pattern resembled that of Wernicke aphasia.
  • (19) Erythrocytes develop in suspension from spherical through discoid to lentil-shaped (lentiform) cells, with a single rigorously specified microtubule bundle, the marginal band.
  • (20) Hematomas are usually spherical or ovoid within the abdomen, and lentiform within the pleural space or abdominal wall.

Words possibly related to "biconvex"

Words possibly related to "lentiform"