(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.
Skin
Definition:
(n.) The external membranous integument of an animal.
(n.) The hide of an animal, separated from the body, whether green, dry, or tanned; especially, that of a small animal, as a calf, sheep, or goat.
(n.) A vessel made of skin, used for holding liquids. See Bottle, 1.
(n.) The bark or husk of a plant or fruit; the exterior coat of fruits and plants.
(n.) That part of a sail, when furled, which remains on the outside and covers the whole.
(n.) The covering, as of planking or iron plates, outside the framing, forming the sides and bottom of a vessel; the shell; also, a lining inside the framing.
(v. t.) To strip off the skin or hide of; to flay; to peel; as, to skin an animal.
(v. t.) To cover with skin, or as with skin; hence, to cover superficially.
(v. t.) To strip of money or property; to cheat.
(v. i.) To become covered with skin; as, a wound skins over.
(v. i.) To produce, in recitation, examination, etc., the work of another for one's own, or to use in such exercise cribs, memeoranda, etc., which are prohibited.
Example Sentences:
(1) The catheter must be meticulously fixed to the skin to avoid its movement.
(2) Elements in the skin therefore seemed to enhance nerve regeneration and function.
(3) This is a fascinating possibility for solving the skin shortage problem especially in burn cases.
(4) Blood flow decreased immediately after skin expansion in areas over the tissue expander on days 0 and 1 and returned to baseline levels within 24 hours.
(5) These findings suggest that clonidine transdermal disks lower blood pressure in hypertensive patients, but produce local skin lesions and general side effects.
(6) Currently, photodynamic therapy is under FDA-approved clinical investigational trials in the treatment of tumors of the skin, bronchus, esophagus, bladder, head and neck, and of gynecologic and ocular tumors.
(7) Immunofluorescent staining for HLA-DR showed dermal positivity in 12 of 13 involved- and 9 of 13 uninvolved-skin biopsy specimens from scleroderma patients, compared with only 1 of 10 controls.
(8) Blood flow was measured in leg and torso skin of conscious or anesthetized sheep by using 15-micron radioactive microspheres (Qm) and the 133Xe washout method (QXe).
(9) A similar interference colour appeared after incubating sections of rat skin with chymase.
(10) Peptides from this region bind to actin, act as mixed inhibitors of the actin-stimulated S1 Mg2(+)-ATPase, and influence the contractile force developed in skinned fibres, whereas peptides flanking this sequence are without effect in our test systems.
(11) This study was designed to examine the effect of the storage configuration of skin and the ratio of tissue-to-storage medium on the viability of skin stored under refrigeration.
(12) Somatostatin-like immunoreactivity has been found to occur in nerve terminals and fibres of the normal human skin using immunohistochemistry.
(13) We recommend analysing the urine for porphyrins in HIV-positive patients who have chronic photosensitivity of the skin.
(14) We investigated the incidence of skin cancer among patients who received high doses of PUVA to see whether such incidence increased.
(15) Attachment of the graft to the wound is similar with and without the addition of human basic fibroblast growth factor, a potent angiogenic agent, to the skin replacement before graft placement on wounds.
(16) In order to develop a sampling strategy and a method for analyzing the circadian body temperature pattern, we monitored estimates of the temperature in four ways using rectal, oral, axillary and deep body temperature from the skin surface every hour for 72 consecutive hours in 10 normal control subjects.
(17) It was shown that the antibiotic had low acute toxicity, did not cumulate and had no skin-irritating effect.
(18) Compliance during dehydration was 7.6 and 12.5% change in IFV per millimeter Hg fall in IFP (micropipettes) in skin and muscle, respectively, whereas compliance in subcutis based on perforated capsule pressure was 2.0% change in IFV per millimeter Hg.
(19) For the second propositus, a woman presenting with abdominal and psychiatric manifestations, the age of onset was 38 years; the acute attack had no recognizable cause; she had mild skin lesions and initially was incorrectly diagnosed as intermittent acute porphyria; the diagnosis of variegate porphyria was only established at the age of 50 years.
(20) 14 patients with painful neuroma, skin hyperesthesia or neuralgic rest pain were followed up (mean 20 months) after excision of skin and scar, neurolysis and coverage with pedicled or free flaps.