<prompt> Which muscle does NOT contribute to dorsal digital expansionInterosseiLumbricalsExtensor digitorumAdductor pollicis  <response>: Dorsal digital expansion is a tendinous modification of extensor digitorum and receives attachment of lumbricals, interossei but not adductor pollicis. Lumbricals andinterossei- MCP Flexion IP extension their attachments to dorsal digital Expansion 