Ligamenta flava

Ligamenta flava

Infobox Ligament
Name = Ligamenta flava
Latin =
GraySubject = 72
GrayPage = 290

Caption = Vertebral arches of three thoracic vertebræ viewed from the front.

Caption2 = Median sagittal section of two lumbar vertebræ and their ligaments.
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MeshName = Ligamentum+flavum
MeshNumber = A02.513.514.287
DorlandsPre = l_09
DorlandsSuf = 12492241
The ligamenta flava connect the lamina of adjacent vertebra, from the axis to the first segment of the sacrum.

They are best seen from the interior of the vertebral canal; when looked at from the outer surface they appear short, being overlapped by the laminæ.

Each ligament consists of two lateral portions which commence one on either side of the roots of the articular processes, and extend backward to the point where the laminæ meet to form the spinous process; the posterior margins of the two portions are in contact and to a certain extent united, slight intervals being left for the passage of small vessels.

Each consists of yellow elastic tissue, the fibers of which, almost perpendicular in direction, are attached to the anterior surface of the lamina above, some distance from its inferior margin, and to the posterior surface and upper margin of the lamina below.

In the cervical region the ligaments are thin, but broad and long; they are thicker in the thoracic region, and thickest in the lumbar region.

Their marked elasticity serves to preserve the upright posture, and to assist the vertebral column in resuming it after flexion.

The elastin prevents buckling of the ligament into the spinal canal during extension, which would cause canal compression.

Hypertrophy of this ligament may cause canal stenosis because it lies in the posterior portion of the vertebral canal.

External links

* [ Picture] at McGill University

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Look at other dictionaries:

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  • ligamenta flava — [TA] yellow ligaments: a series of bands of yellow elastic tissue attached to and extending between the ventral portions of the laminae of two adjacent vertebrae, from the junction of the axis and the third cervical vertebra to the junction of… …   Medical dictionary

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  • ligamenta — Plural of ligamentum. [L.] * * * ligamenta, ligamenta flava, ligamenta nuchae pl of LIGAMENTUM, LIGAMENTUM FLAVUM, LIGAMENTUM NUCHAE * * * lig·a·men·ta (lig″ə menґtə) [L.] plural of ligamentum …   Medical dictionary

  • Ligamenta — (lat.), in der Anatomie soviel wie Bänder (s. d.), z. B. l. capsularia, Kapselbänder der Gelenke; l. flava, gelbe Bänder zwischen den Wirbelbogen; ligamentum nuchae, Nackenband, s. Nacken; ligamentum Poupartii, Leistenband, s. Leistengegend; l.… …   Meyers Großes Konversations-Lexikon

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  • Ligament — A ligament is a tough band of connective tissue that connects various structures such as two bones. Ligament is a fitting term; it comes from the Latin ligare meaning to bind or tie. * * * 1. A band or sheet of fibrous tissue connecting two or… …   Medical dictionary

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