The saccule is the smaller sized vestibular sac (the utricle being the other larger size vestibular sac); it is globular in form, and lies in the recessus sphæricus near the opening of the scala vestibuli of the cochlea.
In the context of the inner ear, the saccule is a smaller vestibular sac with a spherical shape, located in a recessed area close to the opening of the scala vestibuli within the cochlea.