proximal phalanxGo to external page http://purl.obolibrary.org/obo/UBERON_0004302
Proximal-most phalanx within a digit.
Proximal phalanges are bones found in the limbs of most vertebrates. In humans, they are the bones at the base of a toe or finger, the prominent, knobby ends of which are often called the knuckles. In other vertebrates, proximal phalanges have a similar placement in the corresponding limbs, be they paw, wing or fin. In many species, they are the longest and thickest phalanx ('finger' bone)