Lexic.us

Definition of Os trapezium

1. Noun. The wrist bone on the thumb side of the hand that articulates with the 1st and 2nd metacarpals.

Medical Definition of Os trapezium

1. Origin: NL, fr. Gr. A little table, an irregular four-sided figure, dim. Of a table, for; (see Tetra-) + foot, akin to foot; hence, originally, a table with four feet. See Foot. 1. A plane figure bounded by four right lines, of which no two are parallel. 2. A bone of the carpus at the base of the first metacarpal, or thumb. A region on the ventral side of the brain, either just back of the pons Varolii, or, as in man, covered by the posterior extension of its transverse fibres. Source: Websters Dictionary (01 Mar 1998)

Lexicographical Neighbors of Os Trapezium

Literary usage of Os trapezium

Below you will find example usage of this term as found in modern and/or classical literature:

1. A Manual of Examinations: Upon Anatomy and Physiology, Surgery, Practice of by John Livingston Ludlow (1846)
"—A. The os trapezium is the first external, bone of this row ; it is irregular in shape, and has an oblong eminence on its inner surface for the carpal ..."

2. Demonstrations of anatomy: Being a Guide to the Knowledge of the Human Body by George Viner Ellis (1882)
"These ligaments may be oblique in direction ; and a band may be divided between two, as in the case of the ligament attached to the os trapezium and the ..."

3. The Economy of Nature Explained and Illustrated: On the Principles of Modern by George Gregory (1798)
"The abductor pollicis manus commences from the ligamentum carpi annulare and from the os trapezium, ' and is inferred into the outer fide of the root of the ..."

4. The Elements of Anatomy by Jones Quain (1837)
"It arises from the annular ligament of the wrist, 3, and from the os trapezium, and proceeds outwards and forwards, to be inserted, by a short thin tendon, ..."

5. A Treatise on Dislocations and Fractures of the Joints by Astley Cooper, Bransby Blake Cooper (1851)
"... that it became necessary to remove the thumb at the os trapezium ; but the articular surface of the trapezium projected so far that the integuments ..."

6. Lectures on the Principles and Practice of Surgery by Bransby Blake Cooper (1852)
"... along which he is to pass it (continuing to abduct the thumb as he cuts) until the edge is checked in its course by the os trapezium ; the edge of the ..."

7. Practical Dissections by Richard Manning Hodges (1858)
"... it is flat and narrow, and arises from the annular ligament and the os trapezium; it is inserted into the base of the first phalanx of the thumb; ..."

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