has part has part characteristic of part of inheres in part of has modifier Abnormal foot morphology Abnormality of the tarsal bones UMLS:C1862136 Abnormal tarsals Abnormal ankle bones An abnormality of the tarsus are the cluster of seven bones in the foot between the tibia and fibula and the metatarsus, including the calcaneus (heel) bone and the talus (ankle) bone. HP:0001850 Abnormal lower limb bone morphology quality abnormal tarsal bone