Middle ear ear and throat. The primary function of the middle ear is to efficiently transfer acoustic energy from compression waves in air to fluid–membrane waves within the cochlea. The middle ear contains three tiny bones known as the ossicles: "malleus", "incus", and "stapes". The ossicles were given their Latin names for their distinctive shapes; they are also referred to as the "hammer", "anvil", and "stirrup", respectively. The ossicles directly couple sound energy from the ear drum to the oval window of the cochlea. While the stapes is present in all tetrapods, the malleus and incus evolved from lower and upper jaw
Anvil of Doom was recruited on the vocal role to replace Kvoraph after his decision to quit the band in September 2009. In summer 2009, Anvil of Doom resumed touring, taking part in several festivals around Andalusia included in the so-called Re(TOUR)synthesis. In 2011, AOD released an EP entitled "Turn Your Back", along with a videoclip of the title track. This release was supported by an extensive Spanish tour, which saw the band playing next to international legends like Malevolent Creation and Pestilence. In summer 2012, Anvil of Doom starts pre-production for their long-expected second full-length, in order to begin recording by fall.