Endolymphatic Duct

**Definition:** The part of the membranous labyrinth that traverses the bony vestibular aqueduct and emerges through the bone of posterior cranial fossa (CRANIAL FOSSA, POSTERIOR) where it expands into a blind pouch called the endolymphatic sac.

**Tree numbers:** - A09.246.300.909.957.360 - A09.923.500.957.360