Frae Wikipedia, the free beuk o knawledge
A thoum

In human anatomie, the thoum is the first deegit on a haund. The human thoum is full opposable tae the tips o the ither fingers, sae it micht poseetion itsel, an be fauldit in-weys, tae the lave o the haund an fingers. It birls roond at the carpometacarpal jynt an can dae delicate tasks like hyntin objects bi pressin thaim against the lave o the haund or finger(s).

See an aw[eedit | eedit soorce]