trabecula

Definitions

  • WordNet 3.6
    • n trabecula rod-shaped structures of fibrous tissue that divide an organ into parts (as in the penis) or stabilize the structure of an organ (as in the spleen)
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Webster's Revised Unabridged Dictionary
    • n Trabecula (Anat) A small bar, rod, bundle of fibers, or septal membrane, in the framework of an organ part.
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Century Dictionary and Cyclopedia
    • n trabecula In botany, one of the projections from the cell-wall which extend like a cross-beam or cross-bar nearly or quite across the cell-cavity of the ducts of certain plants, or the plate of cells across the cavity of the sporangium of a moss.
    • n trabecula plural In anatomy, the fibrous cords, layers, or processes of connective tissue which ramify in the substance of various soft organs, as the spleen, kidney, or testicle, conferring upon them greater strength, stability, or consistency.
    • n trabecula In embryology, one of a pair of longitudinal cartilaginous bars, at the base of the skull, in advance of the end of the notochord and of the parachordal cartilage, inclosing the pituitary space which afterward becomes the sella turcica; in the human embryo, one of the lateral trabecules of Rathke. They are constant in embryos of a large series of vertebrates, and persistent in adults of some. More fully called trabeculæ cranii. See cuts under chondrocranium and Crotalus.
    • n trabecula One of the calcareous plates or pieces which connect the dorsal and ventral walls of the corona in echinoderms.
    • n trabecula One of the fleshy columns, or columnæ carneæ, in the ventricle of the heart, to which the chordæ tendineæ are attached: more fully called trabecula carnea.
    • n trabecula In entomology, one of the pair of movable appendages on the head, just in front of the antennæ, of some mallophagous insects, or bird-lice, as those of the genus Docophorus. They have been supposed to represent the rudiments of a second pair of antennæ. Also trabeculus.
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Chambers's Twentieth Century Dictionary
    • Trabecula (bot.) a projection from the cell-wall across the cell-cavity of the ducts of certain plants: one of the fibrous cords of connective tissue in the substance of spleen, kidneys, &c.: one of the fleshy columns, or columnæ carneæ, in the ventricle of the heart, to which the chordæ tendineæ are attached:
    • Trabecula (entom.) one of the pair of movable appendages on the head, in front of the antennæ of some mallophagous insects—also Trabec′ulus:—pl. Trabec′ulæ
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Etymology

Webster's Revised Unabridged Dictionary
L., a little beam
Chambers's Twentieth Century Dictionary
L. trabs, a beam.

Usage

In literature:

The lateral trabeculae are long bars which curve round the infundibulum and reach nearly to the front end of the head.
"Form and Function" by E. S. (Edward Stuart) Russell
Each node of a trabecula may be simple, i.e.
"Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 2" by Various
In the interior of the ventricle is a network of muscular trabeculae.
"Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 2" by Various
Bone cortex and trabeculae abnormally thin.
"Scurvy Past and Present" by Alfred Fabian Hess
These membranes closely resemble and sometimes are even continuous with trabeculae which traverse the germinal epithelium.
"The Works of Francis Maitland Balfour, Volume 1" by Francis Maitland Balfour
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In science:

Two descrip tors of the microstructure of the cancellous bone were used in this study: the ratio of bone volume relatively to the total volume of the specimen BV/TV and the mean thickness of the trabeculae Tb .
Dynamic behavior and microstructural properties of cancellous bone
Figure 3 . Variations o f the mechanical properties w ith the structural properties fo r the 3 different tests. a) Apparen t Young’s Modulus E versus ratio bone volume total volume BV/TV, b) E versus mean trabeculae thickness Tb.
Dynamic behavior and microstructural properties of cancellous bone
For the quasi static and non confined dynamic tests , the apparent Young’s modulus E , the y ield stress σy and the plateau stress σp increase w ith the ratio bone volume total volume BV /TV and mean thickness of the trabeculae Tb.
Dynamic behavior and microstructural properties of cancellous bone
Rib bone material properties need to be refined to include a more precise model for fracture prediction, such as stress concentration caused by the presence of pores or by the connection between the trabeculae and the cortical shell.
Tensile material properties of human rib cortical bone under quasi-static and dynamic failure loading and influence of the bone microstucture on failure characteristics
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