(n.) The bones of the cranium; more especially, the bones of the domelike upper portion.
Example Sentences:
(1) A novel staining procedure for enumerating osteoclasts on neonatal mouse calvaria with the vital fluorescent dye acridine orange is described.
(2) Reduced medium pH depletes surface Na and K of cultured calvariae with respect to Ca.
(3) Osteoblast-like rat calvaria cells release specific insulin-like growth factor (IGF) carrier proteins (CPs).
(4) The relation between the level of cyclic AMP and bone resorption was studied in a bone organ culture system, using calvaria from newborn mice.
(5) The 340,000-dalton protein is present in cell-free translation products directed by RNA prepared from limb bud cultures and sternae and is absent in cell-free translation directed by RNA prepared from embryonic calvaria or liver.
(6) Stimuli that enhanced the cAMP level in both osteoblastlike (BL) and osteoclastlike (CL) cells and in intact calvaria only induced ODC activity in the isolated cell populations.
(7) Cloned MC3T3-E1 cells which have retained several osteoblast-like characteristics were derived from newborn mouse calvaria.
(8) The effects of interleukin-1 did not appear to be related to osteoclast precursor proliferation, since hydroxyurea (which inhibits DNA synthesis in these cultures) had no effect on the response of calvaria calavaria increases osteoclast to interleukin-1.
(9) First, a 200-fold increase occurs in normal fetal calvaria osteoblasts producing a mineralizing matrix, compared to confluent osteoblasts in a nonmineralizing matrix.
(10) It was found that a dose of calcitonin sufficient to cause a significant decrease of plasma calcium failed to produce any detectable accumulation cyclic AMP in calvaria, but when high doses of calcitonin were given, there was an apparent correlation between the integrated change of cyclic AMP metabolism and the duration and magnitude of hypocalcemia.
(11) To label in vivo, we subcutaneously injected 40Ca or 44Ca into mice equal to a percentage of their total body weight and dissected the calvariae 24 h later.
(12) Newborn rat calvariae, cultured for 24 h in the presence of cortisol (10(-6) M) have a cAMP response to parathyroid hormone (PTH) about twice as high as calvariae cultured in a control medium.
(13) Further characterization of the enzymes showed that they were similar to those previously isolated from media of calvaria cultured with heparin.
(14) The relative amount of bone and uncalcified collagen was quantitated morphologically for rat calvaria during the first four weeks of rapid growth.
(15) Acid p-nitrophenyl phosphatase in rat calvaria extract behaved in the same way as the liver enzyme and was also strongly inhibited by dichloromethylene diphosphonate, but not by ethane-1-hydroxy-1, 1-diphosphonate.
(16) We also used bone cells obtained by consecutive digestion of the calvaria with enzymes.
(17) Similar analyses were carried out on RNA extracted from calvaria with different levels of collagen synthesis after culture in the presence or absence of ascorbic acid.
(18) Bone grafts taken from the calvaria have been used by some surgeons in the past but its wide acceptance was only achieved after Paul Tessier had reported his own experience.
(19) Synthetic bovine PTH increased cyclic AMP levels to a greater degree in calvaria and in isolated bone cells than in the periosteal segments and cells, whereas sCT was more effective in the periosteal than in the bone systems.
(20) In previous studies we demonstrated that PTH stimulates production of prostaglandin E2 (PGE2) by intact chick calvaria.
Skull
Definition:
(n.) A school, company, or shoal.
(n.) The skeleton of the head of a vertebrate animal, including the brain case, or cranium, and the bones and cartilages of the face and mouth. See Illusts. of Carnivora, of Facial angles under Facial, and of Skeleton, in Appendix.
(n.) The head or brain; the seat of intelligence; mind.
(n.) A covering for the head; a skullcap.
(n.) A sort of oar. See Scull.
Example Sentences:
(1) However, CT will be insensitive in the detection of the more cephalic proximal lesions, especially those in the brain stem, basal cisterns, and skull base.
(2) For the case described by the author primary tearing of the chiasma due to sudden applanation of the skull in the frontal region with burstfractures in the anterior cranial fossa is assumed.
(3) The skull films and CT scans of 1383 patients with acute head injury transferred to a regional neurosurgical unit were reviewed.
(4) We report a rare case of odontogenic abscess, detected while the patient was in the intensive care unit (ICU), which resulted in sepsis and the patient's death due to mediastinitis, skull osteomyelitis, and deep neck cellulitis.
(5) This lack of symmetry in shape and magnitude may be due to non-sphericity of the skull over the temporal region or to variations in conductivities of intervening tissues.
(6) As I looked further, I saw that there was blood and hair and what looked like brain tissue intermingled with that to the right area of her skull."
(7) The inner table of the skull over the lesion was eroded.
(8) A three-dimensional anatomic model of a human skull was produced with birefringent materials for photoelastic analysis.
(9) The effects on skull growth of plating the coronal suture and frontal bone were studied in New Zealand White rabbits.
(10) Much more recently, use of modern CT ("computed tomography") scanning equipment on the London Archaeopteryx's skull has enabled scientists to reconstruct the whole of its bony brain case - and so model the structure of the brain itself.
(11) Tension pneumocephalus was diagnosed by computed tomography (CT) scan and plain skull X-ray.
(12) After removal from the skull, the brains were processed for histopathological evaluation of ischemic neuronal damage by light microscopy and morphometry.
(13) The author describes three systems for (1) the treatment of mandibular fractures; (2) the treatment of midface fractures, for reconstructive surgery of the facial skeleton and the skull, and for orthognathic surgery; and (3) the reconstruction of mandibular defects including condyle replacement.
(14) To avoid the complications attributable to the cervical spine, we recommend roentgenographic examination in all neurofibromatosis patients who are about to have general anesthesia or skull traction for treatment of scoliosis.
(15) Eight macerated human child skulls with a dental age of approximately 9.5 years (mixed dentition) were consecutively subjected to an experimental standardized high-pull headgear traction system attached to the maxilla at the first permanent molar area via an immovable acrylic resin splint covering all teeth.
(16) Lateral skull X-ray images are routinely used in cephalometric analysis to provide quantitative measurements useful to clinical orthodontists.
(17) The absence of a visible fracture on plain skull radiographs does not exclude a fracture, and those patients with clinical signs of a fracture should be treated appropriately and further investigations performed.
(18) In our study, 17 fractures were detected in 594 patients who had skull radiography because of trauma to the head.
(19) The algorithm is an improvement over the sphere model in that it considers two distinct surfaces: an ellipsoid, to model the region of the skull on which the sensors are placed, and a sphere as the medium in which the current dipole model is considered.
(20) A new combination of techniques for resection of hemangiopericytoma of the skull base is described.