(a.) Concave on both sides; as, biconcave vertebrae.
Example Sentences:
(1) The normal disks were biconcave, whereas the surgically removed disks were deformed and thicker than the normal disks.
(2) The normal red cells were biconcave disks in which chlorpromazine induced inward (negative) curvature: deep cupping (stomatocytosis) and multiple invaginations.
(3) The relationships observed support the following conclusions: (A) the femoral score and the metacarpal index are related to the degree of osteopenia; (B) the biconcavity index reflects the extraskeletal factors that are pathogenic in spinal osteoporosis; (C) a reduced femoral trabecular pattern index is associated with spinal osteoporosis, although this measurement is not related to the degree of osteopenia; and (D) it may be imprudent to diagnose osteoporosis from the presence of lumbar compression fractures.
(4) As well as an increase in the electron density, configurational distortion modified the normal biconcave forms to ameboid structures.
(5) Scanning electron microscopy of the platelets revealed a gradual morphologic change from biconcave flat discs to irregular, crenated forms.
(6) This crenated cell shape was reversed to a biconcave disc or cup-like form by a further treatment with lysophospholipase.
(7) Development of lateral bodies and modeling of the biconcave cores was observed within 30 min, and structurally mature virions were present by 2 hr after the removal of rifampin.
(8) The fossa was almost flat, slightly convex antero-posteriorly and concave medio-laterally; the disc was biconcave and the condyle oval.
(9) Normal biconcave erythrocytes were transformed by the lysolipid lysolecithin (1-alpha-lysophosphatidylcholine, LPC) into spiculated and sphered corpuscles which had a normal viscosity at high shear rates despite their abnormal shape.
(10) The capsid may bend into an open torus, conferring a biconcave disk or kidney-shaped morphology to the virion (largest diameter 120-140 nm) or the capsid may be straight, resulting in a rod-shaped particle (35 X 170 nm).
(11) The vertebral bodies were biconcave, and kyphosis and scoliosis developed.
(12) I designed a biconcave floating contact lens used for trans pars plana vitreous surgery.
(13) Fifteen patients with compression fractures and five with biconcave fractures were studied.
(14) Combining low temperatures for lysis and high temperatures for resealing and sufficient energy supply are advantageous for highest recovery of biconcave discocytes.
(15) The explanations are supported by the resealed ghost shapes observed before and after the treatments; shape recovery from the monoconcave spheroid toward biconcave discoid is observed in most cases concomitantly with improvements of flow characteristics.
(16) The findings demonstrate that A23187 causes a time- and concentration-dependent conversion of biconcave erythrocytes into echinocytes and spheroechinocytes.
(17) A soft, self-adhering, biconcave silicone contact lens is presented.
(18) This results from the asymmetric form (biconcave disc) of these cells.
(19) We find that by reducing the volume, the stable shape can change from a circular biconcave shape as in red blood cells, to elliptical, triangular, square, and other polygonal shapes.
(20) Each vertebra from third thoracic (T3) to fifth lumbar (L5) received a score of "1" if normal, "2" if biconcave and "4" if crushed or fractured.
Vertebrae
Definition:
(pl. ) of Vertebra
Example Sentences:
(1) It is concluded that during exposure to simulated microgravity early signs of osteoporosis occur in the tibial spongiosa and that changes in the spongy matter of tubular bones and vertebrae are similar and systemic.
(2) It is suggested that the Japanese may have lower trabecular bone mineral density than Caucasians but may also have a lower threshold for fracture of the vertebrae.
(3) The various changes were accompanied by a marked reduction in the overall wet weight of the vertebrae.
(4) The BMD of the 2nd to 4th lumbar vertebrae was measured and the mean density presented as g cm-2.
(5) All the vertebrae were agenetic below the thoracic segments in the other rat fetus.
(6) Neusticosaurus species are easiest separated by their number of presacral vertebrae.
(7) This was followed by a gradual density increase such that by 1 year postoperatively, in 60% of the subjects, the density of these vertebrae was higher than the preoperative level.
(8) The characteristic injuries were compression wedge-shaped fractures, multiple fractures of the vertebrae, comminuted and traumatic spondylolistheses and dislocation fractures.
(9) They make it possible to dissect, by spending minimal time and making less efforts, the vertebral canal both within several vertebrae and its nearly full length, providing a wide view of the spinal cord, rootlets, and intervertebral ganglia.
(10) The Authors describe the moniliform structure of dorsal aorta of the Cyprinus carpio L., which has successive swellings and constrictions, strictly corresponding to each vertebra.
(11) He also had multiple follicular and papillary thyroid carcinomas with a metastatic lesion in the lumbar vertebrae.
(12) In older children, there were a low vertebral signal and disappearance of the disc-vertebra borders on T1-weighted images and a high vertebral signal with a decreased and flattened disc signal on T2-weighted images.
(13) Hyperthermia was applied in the region of the vertebral column between the cervical vertebrae 5 and thoracic 2, using a ring-shaped applicator operating at a microwave frequency of 434 MHz.
(14) The authors report on their experience with 23 patients with destructive disease of the vertebrae.
(15) In 20 patients, vertebral deformities were limited to 1 or 2 mid-thoracic vertebrae, and the mean CaBI values for these 20 patients was 0.81 (0.15), equal to that for patients without any vertebral deformity.
(16) Both conditions are inherited and characterised by malformed thoracic and lumbar vertebrae.
(17) The injured vertebra is grafted through the pedicle, giving security against late collapse after device removal.
(18) The authors describe two types of pelvic obliquity--total pelvic obliquity in which the sacrum is the lowest vertebra of the lumbar curve and subtotal pelvic obliquity in which there is some compensation between L5 and the sacrum.
(19) Although anterior and posterior traumatic displacement of cervical vertebrae are commonly noted, and the devastating neurological deficits associated with these injuries have been amply defined, lateral displacement with fractures has been rarely recognized, and the clinical significance of this injury has been overlooked.
(20) The T-1 nerve root obstructs posterolateral access to the T-1 vertebra, necessitating an inferolateral approach underneath the T-1 nerve root axilla.