<prompt> Hand deformity presennting as hyper-extension at the metcarpo phalaogeal joint and flexion at inter-phalanngeal joint, occurs due to paralysedFlexor digitorum profundusLumbricalsLumbricals and interosseiExtensor digitorum  <response>: Interossei and lumbricalsflexes MCP metacarpophallangeal joint and extend IP interphallangeal joint. Injury to interossei and lumbricals leads toclaw hand extended MCP and flexed IP 