1. Ear and Eye

2. External Ear
Internal Ear
Middle Ear
External acoustic meatus
(Auditory canal)
Eustachian Tube
Tympanum
Pinna

3. Function of Some Ear Structures
Eustachian tube (function is to equalize pressure on both sides of the tympanic membrane)
Semi-circular canal (function is for balance)
Cochlea (function is for hearing)

5. Vestibulocholear nerve
Semicircular canals
Chochlea

6. Sclera
Cornea

8. Iris
Pupil

9. Choroid layer
Iris
Pupil
Sclera
Cornea (clear area)

11. Posterior Cavity
Anterior Cavity (not anterior chamber)
(not posterior chamber)
Lens

13. Ora Serrata
Retina
Lens
Optic nerve
Optic disc
Fovea centralis
(where light focuses)

16. Sclera
Cornea
Optic nerve

17. Sclera
Retina
Choroid layer
Cornea
Optic nerve
Lens (fell out of place)

20. Eye
Retina
Sclera
Choroid

21. Eye
Retina
Choroid
Sclera