Deep transverse metacarpal ligament

Joints and ligaments · Latin: Ligamentum metacarpeum transversum profundum

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The deep transverse metacarpal ligament (also called the deep transverse palmar ligament) is a narrow fibrous band which runs across the palmar surfaces of the heads of the second, third, fourth and fifth metacarpal bones, connecting them together.

Definition from Wikipedia, CC BY-SA 4.0.