Definitions for vinculumˈvɪŋ kyə ləm
This page provides all possible meanings and translations of the word vinculum
A bond or link signifying union.
Any symbol used to group some of the terms in an expression, indicating that that part of the calculation should be done before other parts.
A horizontal line over the top of some of the terms in an expression, indicating that that part of the calculation is to be done before other parts.
Specifically, the horizontal line between the numerator and denominator in a fraction.
A ligament that limits the movement of an organ or part.
Origin: From vinculum, from vincio + -ulum.
a bond of union; a tie
a straight, horizontal mark placed over two or more members of a compound quantity, which are to be subjected to the same operation, as in the expression x2 + y2 - x + y
a band or bundle of fibers; a fraenum
a commissure uniting the two main tendons in the foot of certain birds
Origin: [L., from vincire, vinctum, to bind.]
In anatomy, a vinculum is a band of connective tissue, similar to a ligament, that connect a flexor tendon to a phalanx bone. They contain tiny vessels which supply blood to the tendon. In vertebrate anatomy, they are referred to as mesotendons. For example, in the fingers and toes of humans and related vertebrates, vincula are responsible for the direct vascularization of the flexor digitorum superficialis and profundus tendons to the intermediate and distal phalanges in each finger. These vincula are four folds in the synovial membrane that carry blood vessels to the body and insertion of the tendon. The tendon receives some additional nutrition directly from the synovial fluid in the sheath, which is important in case of partial loss of direct vascularization from the vincula. In the chick, vincula are much larger and more complex than in humans. Though they contain blood vessels, these only make up a very limited portion of the total mass of the vincula, most of whom consists of collagen and elastic fibres. A vinculum is also found in insects' male genitalia. Unlike the vertebrate structures, it is part of the exoskeleton, being formed by the ventral part of the ninth abdominal segment. It retains the aedeagus and the clasper attaches to it.
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