Superficial transverse ligament of the fingers

The Superficial Transverse Ligament of the Fingers (or superficial transverse metacarpal ligament) is a thin band of transverse fasciculi; it stretches across the roots of the four fingers, and is closely attached to the skin of the clefts, and medially to the fifth metacarpal bone, forming a sort of rudimentary web.

Beneath it the digital vessels and nerves pass to their destinations.