Thumb
The 'thumbs up' gesture is a sign of approval in many cultures, and an obscene gesture in many others.
Latin pollex, digitus primus, digitus I
Artery princeps pollicis artery
Lymph infraclavicular lymph nodes[1]
MeSH Thumb
Dorlands/Elsevier p_27/12655361
  1. Template:NormanAnatomy