this class refers to the combination of the stylopod and zeugopod of a forelimb. Sometimes (cf FMA), 'arm' denotes the stylopod only; sometimes (cf MA), 'arm' denotes the part of the forelimb covering both (i.e. shoulder to hand). Also note distinction between arm and forelimb: hand is part of forelimb, but not part of arm

http://upload.wikimedia.org/wikipedia/commons/e/ee/Upperarm.jpg

currently declared as overlapping hand, as AOs disagree over whether some wrist parts are in the arm or hand

uberon

brachium, upper extremity

Most anatomists now agree that the three proximal bones of the tetrapod limbs are homologous to the two or three proximal elements of the paired fin skeleton of other sarcopterygians, that is the humerus-femur, radius-tibia, and ulna-fibula.[well established][VHOG]

UBERON:0001460

• forelimb stylopod
• arm nerve
• arm bone
• arm connective tissue
• arm blood vessel
• elbow
• forelimb zeugopod
• arm skin
• musculature of arm