A vestibule

B utricle

1. Vestibule
2. Lateral canal
3. Anterior canal
4. Posterior canal
5. Cochlea
6. Anterior duct
7. Posterior duct
8. Utricle
9. Saccule
10. Utricular branch of the endolymphatic duct
11. Sacccular branch of the endolymphatic duct
12. Cochlear nerve
13. Cochlear ganglion (spiral ganglion of cochlea)

14. Vestibular nerve

a. Oval window

c. Round window

d. Ampullae

g. Cochlea

h. Heliocotrema/ cupula of cochlea

i. Cochlear nerve

j. Cochlear duct

k. Membranous labyrinth

L. cochlear ganglion

m. Semicircular duct

n. Basilar membrane

o. Vestibular membrane

p. Scala tympani (perilymph fluid)

q. Scala vestibuli (perilymph fluid)