Phalanx bone
![Thumb and index finger of right hand during pad-to-pad precision grasping in ulnar view.[5]](/uploads/202502/02/Distal-phalanges-thumb-index_Journal.pone.0011727.g0013641.png)
The phalanges /fəˈlæŋdʒiːz/ (singular: phalanx /ˈfælæŋks/) are digital bones in the hands and feet of most vertebrates. In primates, the thumbs and big toes have two phalanges while the other digits have three phalanges. The phalanges are classed as long bones.