Each structure in the temporal bone displays a resident macrophage population. Left: In this maximal intensity projection, the rat inner ear atlas is used to segment annotated regions (8cn: cochlear nerve, SpG: spiral ganglion; d: dendrites; OoC: Organ of Corti; Co,slg: cochlear spiral ligament; Co,slm: cochlear spiral limbus). Note that macrophages (here labeled with anti-Iba1 antibody from WAKO) display different shapes in different structures. Right: maximal intensity projection of rat cochlear macrophages, shown in false color to identify the region they belong to. Red: spiral ligament; green: spiral ganglion dendrites; cyan: spiral ganglion; magenta: spiral limbus.