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Rachitic rosary on chest radiograph The prominent knobs of bone at the costochondral joints of rickets patients are known as a rachitic rosary or beading of the ribs . The knobs create the appearance of large beads under the skin of the rib cage , hence the name by analogy with the beads of a Catholic Christian rosary .
Then, bead blanks are selected from those fragments. The next two steps can be performed in either order depending on the group making the beads; either a hole is drilled in the bead's center, often with a sharp stone, piece of bone, or horn, or the process of trimming the bead is performed before the perforation.
Each bead is the beach-worn apex of a cone snail. Such shells are often strung as necklaces, known as puka shell necklaces. Puka is the Hawaiian word for "hole" and refers to the naturally occurring hole in the middle of these rounded and worn shell fragments. Numerous inexpensive imitations are now widely sold as puka shell necklaces.
Two principal techniques are used to produce seed beads: the wound method and the drawn method. The wound method is the more-traditional technique, is more time-consuming, and is no longer used in modern bead production: in this technique, a chunk of glass known in glassmaking as a gather and composed mainly of silica is heated on an iron bar until molten.
A transdermal implant (or percutaneous implant), also known as a microdermal implant or surface anchor, is an implant incorporating a flat plate that sits beneath the skin with an externally visible portion incorporating a bead, spike or other item that appears to float on the surface of the skin. Due to the fact that the skin is held open by ...
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