Manual of general, descriptive, and pathological anatomy (Volume 2).

  • Meckel, J. F. (Johann Friedrich), 1781-1833.
Date:
1832
Catalogue details

Licence: Public Domain Mark

Credit: Manual of general, descriptive, and pathological anatomy (Volume 2). Source: Wellcome Collection.

Provider: This material has been provided by the National Library of Medicine (U.S.), through the Medical Heritage Library. The original may be consulted at the National Library of Medicine (U.S.)

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    hind the sigmoid cavity it forms a circle, lined by the synovial membrane of the elbow-joint, in which the head and the neck of the radius move. Its fibres interlace above with those of the anterior, posterior, and ex- ternal lateral ligaments ; but it terminates downward in a loose edge. This ligament strengthens the synovial capsule ; it confines the motions of the upper part of the radius and keeps it in place. II. ROUND LIGAMENT. § 894. The round or oblique ligament, called also, but very im- properly, the transverse ligament (Lig. antibrachii, s. cubili teres, s. membrana obliqua, s. transversa), is a thin but strong band, broadest at its upper part, situated on the anterior face of the bones of the fore-arm : it descends obliquely from the tubercle of the ulna to the internal face of the radius, and is attached below its tubercle. Its uses are to limit the motion of supination in the radius. Hi MIDDLE REGION. INTEROSSEOUS LIGAMENT. § 895. The interosseous ligament {Lig., s. membrana antibrachii interossea) unites the two bones of the fore-arm in most of their length. It occupies the deepest region of the fore-arm, being situated between the extensor and the flexor muscles. Its upper part commences below the tubercle of the radius. It is attached in its whole extent to the external edge of the ulna, and to the internal edge of the radius, and extends almost to the lower extremity of the bones of the fore-arm ; so that its lower part is much broader than its upper. It is formed of parallel fibres ; these descend from the radius to the ulna, and are much stronger at its upper than at its lower part. In several places, particularly above and below, we observe foramina for the passage of the interosseous vessels. III. INFERIOR REGION. SYNOVIAL CAPSULE. § 896. The inferior extremities of the bones of the fore-arm are united by a very loose and very broad synovial capsule (membrana capsularis sacciformis extremitatum inferiorum cubiti), which is strengthened only by some straight and isolated fibres. This capsule arises on the ulna from the semilunar cavity and on the radius from the corresponding eminence. &