Mindblown: a blog about philosophy.
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Wire ligature
A soft, thin wire, elastic cord, or elastic loop used in orthodontics to anchor an arch wire or other dental devices or to tie two structures together.
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Rubber-band ligation
The application of a rubber band around a superficial bit of tissue, such’ as an internal hemorrhoid or an esophageal varix. Because its blood supply is thereby cut off, the tissue dies and sloughs.
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Ligating module
In orthodontics an appliance, typically made of polyurethane, that fits over a bracket and holds an arch wire in place.
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Ligase chain reaction
A technique for amplifying the quantity of specific sequences of nucleic acid in a specimen. The patient’s DNA, or specimens thought to contain pathogenic DNA, are mixed with DNA ligase and oligonucleotide probes. Double-stranded DNA is denatured. Probes bind to the complementary strands on any denatured target DNA. Ligase joins the bound probes, and multiple…
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Neuroimmunophilin ligand
Any of the small molecules that can stimulate neurons to grow new axons and dendrites. They can cross the blood-brain barrier, and therefore may be used to treat neurodegenerative diseases or central nervous system injuries.
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Fas ligand
A protein on the surface of activated T cells that binds to Fas receptors on the surface of the same or other T cells and triggers a series of events causing apoptosis. This process is involved in the activation-induced cell death necessary to ensure that autoreactive T cells do not attack “self-”antigens.
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Ligand
In chemistry, an organic molecule attached to a central metal ion by multiple bonds.
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Ligamentum teres
In the adult, the closed remnant of the fetal umbilical vein. It runs inside the free edge of the falciform ligament from the underside of the umbilicus to the liver.
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Ligamentum flavum
A ligament that binds adjacent vertebral laminae to each other.
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Ligamentum arteriosum
In the adult, the cordlike remnant of the fetal ductus arteriosus between the left pulmonary artery and the arch of the aorta. Just after birth, the ductus arteriosus constricts and begins to fill with endothelial cells, and within a few months the ductus arteriosus is completely closed. For the remainder of one’s life, the closed…
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