#knuckle__knucklejoint__metacarpophalangeal_joint__metacarpophalangealjoint  a joint of a finger when the fist is closed
  supertype:  #synovial_joint__articulatio_synovialis  a freely movable joint
  part of:  #finger  any of the terminal members of the hand (sometimes excepting the thumb); "her fingers were long and thin"
     part of:  #manus__manu__hand__mitt__paw  the (prehensile) extremity of the superior limb; "he had the hands of a surgeon"; "he extended his mitt"
        part of:  #human__man__homo__human_being__humanbeing  any living or extinct member of the family Hominidae
        part of:  #arm  a human limb; technically the part of the superior limb between the shoulder and the elbow but commonly used to refer to the whole superior limb
           part of:  #human__man__homo__human_being__humanbeing  any living or extinct member of the family Hominidae
           part of:  #body__organic_structure__organicstructure__physical_structure  the entire physical structure of an organism (especially an animal or human being); "he felt as if his whole body were on fire"

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