Abductor pollicis longus muscle Abductor pollicis longus muscle In human anatomy, the abductor pollicis longus (APL) is one of the extrinsic muscles of the hand. As the name implies, its major function is to abduct the thumb at the wrist. Its tendon forms the anterior border of the anatomical snuffbox. The abductor pollicis longus lies immediately below the supinator and is sometimes united with it. It arises from the lateral part of the dorsal surface of the body of the ulna below the insertion of the anconeus, from the interosseous membrane, and from the middle third of the dorsal surface of the body of
Anatomical fugitive sheet survived. Jean Ruel, a French botanist and physician, published his own anatomical sheets in 1539. Andreas Vesalius published his anatomical work on the human body, ""De humani corporis fabrica"", four years later in 1543. His ""Tabulae anatomicae sex"" had appeared in 1538 showing skeletons and viscera, and differ substantially from the Ruel plates. Thomas Geminus, a pseudonym for Thomas Lambrit, was another engraver and printer, who freely copied the anatomical drawings of Vesalius, a practice which infuriated him into denouncing 'extremely inept imitators'. Geminus did however redraw and rearrange Vesalius' woodcut illustrations, choosing to use engraved copperplates, with which he