from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. crossbarred; marked with cross lines
- adj. open or spongy, like certain porous bones
from the GNU version of the Collaborative International Dictionary of English
- adj. Crossbarred; marked with cross lines.
- adj. Open or spongy, as some porous bones.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. having an open or latticed or porous structure
- adj. having a latticelike structure pierced with holes or windows
Sorry, no etymologies found.
The navicular bone consists normally of compact and cancellated tissue arranged in certain proportions, the compact tissue without, and the cancellated within.
These proportions can only be judged of by the examinations of sections of the bone, and when it is found in any case that the cancellated tissue bulks more largely in the formation of the bone than normally it should, we have what we may term a weak navicular bone.
As the disease progresses, there is softening and enlarging of the cancellated tissue towards the centre of the bone.
The cerebral and spinal veins, the veins of the cancellated tissue of bone, the pulmonary veins, and the umbilical vein and its branches, are also destitute of valves.
Referring to Fig. 249, it is seen that the large expansion of the bone is produced by the gradual transition of the hollow shaft of compact bone to cancellated bone, resulting in the production of a much larger volume.
On the reverse is depicted a cancellated structure, no doubt the tomb of
At the cancellated ends of the long bones, particularly the upper end of the femur and humerus, and the lower end of the radius, it is not uncommon for one fragment to be _impacted_ or wedged into the substance of the other (Fig. 28).
The primary fracture is usually longitudinal, passing through the facets for the talus and cuboid, and from this various secondary fissures radiate; the cancellated tissue is much crushed, so that the whole bone is flattened out.
Between these extremes are cases in which the capsular and synovial layer are extensively lacerated without involvement of the bones, and others in which the bones are implicated without serious damage being done to ligaments or synovial layer -- for example, by a bullet passing through and through the cancellated part of one of the constituent bones, or by a fissure extending into the articular surface.
_Osteoma_ occurs in two forms: the exostosis, which may be composed of cancellated or of compact tissue, and the diffuse osteoma or leontiasis ossea (Volume I., p. 485).