endolymphatic sac
saccus endolymphaticus
From the posterior wall of the saccule a canal, the ductus endolymphaticus, is given off; this duct is joined by the ductus utriculosaccularis, and then passes along the aquaeductus vestibuli and ends in a blind pouch, the endolymphatic sac, on the posterior surface of the petrous portion of the temporal bone, where it is in contact with the dura mater. Studies suggest that the endolymphatic duct and endolymphatic sac perform both absorptive and secretory, as well as phagocytic and immunodefensive,functions . [WP,unvetted].
| Type | Bone |
| Parent Structure | inner ear epithelium |
| Latin Name | saccus endolymphaticus |
| FMA ID | 75639 |
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