The Inner or Deep Part of an Animal or Plant Structure is an official DVD released by Björk on August 31, 2004. It is a 45 minute film about the making of the Medúlla album. The DVD features clips of the studio performances by Dokaka, Shlomo, Rahzel and Mike Patton that formed the beats for many of the songs on the album. It was originally issued as a bonus feature on the multichannel DVD-A of 'Medulla' and then later reissued by itself as a separate disc.
The title of the DVD is the actual definition of the word "Medúlla".