What's the difference between bone and callus?

Bone


Definition:

  • (n.) The hard, calcified tissue of the skeleton of vertebrate animals, consisting very largely of calcic carbonate, calcic phosphate, and gelatine; as, blood and bone.
  • (n.) One of the pieces or parts of an animal skeleton; as, a rib or a thigh bone; a bone of the arm or leg; also, any fragment of bony substance. (pl.) The frame or skeleton of the body.
  • (n.) Anything made of bone, as a bobbin for weaving bone lace.
  • (n.) Two or four pieces of bone held between the fingers and struck together to make a kind of music.
  • (n.) Dice.
  • (n.) Whalebone; hence, a piece of whalebone or of steel for a corset.
  • (n.) Fig.: The framework of anything.
  • (v. t.) To withdraw bones from the flesh of, as in cookery.
  • (v. t.) To put whalebone into; as, to bone stays.
  • (v. t.) To fertilize with bone.
  • (v. t.) To steal; to take possession of.
  • (v. t.) To sight along an object or set of objects, to see if it or they be level or in line, as in carpentry, masonry, and surveying.

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) In conclusion, the efficacy of free tissue transfer in the treatment of osteomyelitis is geared mainly at enabling the surgeon to perform a wide radical debridement of infected and nonviable soft tissue and bone.
  • (3) This bone could not be degraded by human monocytes in vitro as well as control bone (only 54% of control; P less than 0.003).
  • (4) 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.
  • (5) Osteoporosis is characterized by a reduction in bone density.
  • (6) The half-life of 45Ca in the various calcium fractions of both types of bone was 72 hours in both the control and malnourished groups except the calcium complex portion of the long bone of the control group, which was about 100 hours.
  • (7) We have addressed the effect of late intensification with autologous bone marrow transplantation on SCLC through a randomized clinical trial.
  • (8) Our results indicate that increasing the delay for more than 8 days following irradiation and TCD syngeneic BMT leads to a rapid loss of the ability to achieve alloengraftment by non-TCD allogeneic bone marrow.
  • (9) Decreased MU stops additions of bone by modeling and increases removal of bone next to marrow by remodeling.
  • (10) Pokeweed mitogen-stimulated rat spleen cells were identified as a reliable source of rat burst-promoting activity (PBA), which permitted development of a reproducible assay for rat bone marrow erythroid burst-forming units (BFU-E).
  • (11) The fibrous matrix and cartilage formed within the nonunion site transformed to osteoid and bone with increased vascularity.
  • (12) Periosteal chondroma is an uncommon benign cartilagenous lesion, and its importance lies primarily in its characteristic radiographic and pathologic appearance which should be of assistance in the differential diagnosis of eccentric lesions of bones.
  • (13) The compressive strength of bone is proportional to the square of the apparent density and to the strain rate raised to the 0.06 power.
  • (14) Furthermore echography revealed a collateral subperiosteal edema and a moderate thickening of extraocular muscles and bone periostitis, a massive swelling of muscles and bone defects in subperiosteal abscesses as well as encapsulated abscesses of the orbit and a concomitant retrobulbar neuritis in orbital cellulitis.
  • (15) Survival was independent of the type of clinical presentation and protocol employed but was correlated with the stage (P less than 0.0005), symptoms (P less than 0.025), bulky disease (P less than 0.025) and bone marrow involvement (P less than 0.025).
  • (16) There was however no difference in the cross-sectional studies and no significant deleterious effect detected of tobacco use on forearm bone mineral content.
  • (17) During the digestion of these radiolabeled bacteria, murine bone marrow macrophages produced low-molecular-weight substances that coeluted chromatographically with the radioactive cell wall marker.
  • (18) According to the finite element analysis, the design bases of fixed restorations applied in the teeth accompanied with the absorption of the alveolar bone were preferred.
  • (19) At consolidation, the distraction area was composed of lamellar trabecular and partly woven bone.
  • (20) Periodontal disease activity is defined clinically by progressive loss of probing attachment and radiographically by progressive loss of alveolar bone.

Callus


Definition:

  • (n.) Same as Callosity
  • (n.) The material of repair in fractures of bone; a substance exuded at the site of fracture, which is at first soft or cartilaginous in consistence, but is ultimately converted into true bone and unites the fragments into a single piece.
  • (n.) The new formation over the end of a cutting, before it puts out rootlets.

Example Sentences:

  • (1) In later phases, mast cells appeared in the newly formed marrow in the external callus.
  • (2) The mitotic activities of various cellular components of callus tissues in different periods after tibial fracture of rat were studied with 3H-thymidine labeling and electron radioautographic method.
  • (3) The fractures, which appeared on roentgenograms as transverse radiolucent zones with variable callus formation, healed slowly or not at all despite treatment with calcium and vitamin D. They resembled pseudofractures (Looser's transformation zones) radiologically, but the biochemical and histologic findings were those of idiopathic osteoporosis rather than osteomalacia.
  • (4) The normal process of fracture healing was described in which the dual role of external callus was stressed, firstly in providing immobilisation of the fragments and secondly in providing the first bony bridge between the fragments.
  • (5) Pinwheel inclusions (PWs) were found in cells of callus tissue derived from explants of secondary phloem parenchyma of carrot (Daucus carota) storage root and grown on a basal medium containing zeatin and indoleacetic acid or coconut milk, naphthalene acetic acid, or combinations of these.
  • (6) However, we failed to demonstrate any remarkable IL-1 inhibitory activity in each fraction after gel filtration high-performance liquid chromatography of the psoriatic scale extracts or in that of extracts from the plantar callus.
  • (7) The lack of periosteal callus appears to be the result of a small gap and rigid fixation, rather than related to strains induced in the bone.
  • (8) The ages of the callus were three, five, eight, and 11 days after the fracture, that is, from before the cartilage was demonstrable on Day 5 until the enchondral bone formation started on Day 11.
  • (9) Biochemical analysis of the callus is reminiscent of bone from early stages of human development and normal fracture healing (e.g.
  • (10) Origin of roots from calluses was not accompanied by formation of buds.
  • (11) While some gymnasts seem more ethereal than corporeal, Beth's blisters and calluses have always been obvious.
  • (12) Bet v I, the major birch pollen allergen, could be extracted easily from pollen, and in low amounts from callus and leaves.
  • (13) In the surrounding external callus Types I, II, and III were present, but Type III was not noted in the later stages of healing.
  • (14) Lipids from callus cultures and suspension cultures of higher plants constitute 5 to 8% of the dry tissue's weight.
  • (15) Histological investigation showed that the medullary cavity was closed after 2-3 weeks, chiefly by endosteal callus.
  • (16) The plate-fixed bones healed more rapidly, with less periosteal callus and less angulation of the fragments, than those treated with a cast.
  • (17) These findings indicate that the oxygen tension around the cathode was diminished in advance of the electrically stimulated callus formation.
  • (18) There is increased metabolism of glycosaminoglycan collagen synthesis, and transformation of fibrous and cartilaginous callus, combined with mineralization of the latter and intensified vascular invasion into bone.
  • (19) Bone union can be achieved under external fixation through different pathways, ranging from callus-free gap healing under a rigid neutralization configuration to direct-contact healing with periosteal new bone formation under axially dynamized stable fixation.
  • (20) We compare the gene activity in heterozygotes versus homozygotes, and show variation in activity between plants regenerated independently from the same transformed callus.