The etymology derives from the Greek trapezion which means "irregular quadrilateral;" literally, "a little table," from trapeza meaning table. Also, from tra- "four" and peza "foot" or "edge."
The dorsal surface is rough.
The palmar surface is narrow and rough. At its upper part is a deep groove, running from above obliquely downward and medialward; it transmits the tendon of the Flexor carpi radialis, and is bounded laterally by an oblique ridge. This surface gives origin to the Opponens pollicis and to the Abductor and Flexor pollicis brevis; it also affords attachment to the transverse carpal ligament.
The lateral surface is broad and rough, for the attachment of ligaments.
New Findings from Isfahan University of Medical Sciences in the Area of Oral and Maxillofacial Surgery Reported
May 12, 2013; By a News Reporter-Staff News Editor at Medical Devices & Surgical Technology Week -- Investigators publish new report on Oral...