saccule; vestibular saccule

Function

• otolith organ involved in vertical movement & sensing gravitational change

Structure

• the smaller of the 2 membranous sacs in the vestibula of the labyrinth, lying in the spherical recess
• it is connected with the cochlear duct by the ductus reunion & with the utricle by the ductus endolymphaticus & the ductus utriculosaccularis

Pathology

• association between high-frequency hearing loss in elderly & diminished saccular function

More general terms

• ear structure

More specific terms

• conjunctival sac
• lacrimal sac (dacryocyst)
• laryngeal saccule; Hilton sac; laryngeal pouch

Component of

• vestibular
• vestibule