# Limbs for PAFs in OpenPose

What limbs are used in openpose for the PAF? If you look at the skeletal reconstruction one would assume it is $$ears - eyes$$, $$eyes - nose$$, $$nose-neck$$, $$neck - hips$$, $$shoulders - elbows$$, $$elbows- wrists$$, $$hips - knees$$, and $$knees - ankles$$ but this would only give 34 PAFs while openpose has 38 so what are the missing two PAFs?