part_of part of part of superior olivary complex http://upload.wikimedia.org/wikipedia/commons/4/46/Gray713.png The SOC displays a significant interspecies variation, being largest in bats and rodents and smaller in primates. In mice, the superior olivary nucleus is a small cylindrical mass on the dorsal surface of the lateral part of the trapezoid body of the pons, and it is situated immediately above the inferior olivary nucleus. It receives projections from the cochlear nucleus and thus is involved in the perception of sound[GO:0021718] pontine tegmentum nuclear complex of neuraxis auditory system gray matter of hindbrain