connected to phalanx metapodium bone proximal phalanx 1 AAO:0010680 EMAPA:35716 MA:0002916 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) Proximal-most phalanx within a digit. UBERON:0004302 phalanx 1 phalanx I proximal-most phalanx uberon