<prompt> The condition with postmoem cervical disc prolapse at C 6-7 is described as -Battles signAmistane signNutcrackers signUndeakers fracture  <response>: The Essentials Forensic Medicine Toxicology Dr.K.S. Narayana Reddy 32nd edition pg no 106 UNDEAKER;S FRACTURE is caused due to the head falling backward faorcibly after death,which tears open one of the interveebral disc usually around C6-7 due to sublaxation of lower cervical spine occurs. 