The Ear

External Ear

Auricle

External auditory meatus

Middle Ear

Auditory (Eustacian) tube

Internal Ear

Lateral viewOuter (external) ear

Inner (internal) ear

Middle ear

Lateral view

Auricle/pinna

Semicircular canals

Cochlea

Malleus(hammer)

Vestibulocochlearnerve (VIII)(cochlear branch)

External auditorycanal

Pharyngotympanic/Auditory tube

Tympanic membrane

Lateral view

Pinna

External auditory

Semicircular canals Vestibulocochlearnerve (VIII) (cochlearbranch)

CochleaExternal auditorycanal

Tympanic membrane

Cochlea

Malleus

Auditorytube

Tympanic membrane

Auditory ossicles

Malleus

Incus

Stapes

Superior view

Semicircular canalsVestibulocochlear nerve(VIII) (cochlear branch) Vestibule

Pinna

Tympanic membrane

Malleus (hammer)

Incus (Anvil)

Cochlea

Superior viewVestibulocochlear nerve (VIII)(cochlear branch)Semicircular canals

CochleaVestibulePinna

Vestibulocochlear nerve(VIII) (cochlear branch)

Semicircularcanals

Inner and Middle Ear - Superiorview

Cochleacanals

Incus (anvil)

Malleus (hammer)Tympanic

membrane

Stapes (stirrup)

Round window

Semicircular canal

Ampulla

Vestibule (space)

Saccule

Utricle

Vestibulocochlear (Auditory) nerve

Inner EarSemicircularcanals withmembranoussemicircularducts

Vestibule

Stapes (covers oval window)

Cochlea

Middle Ear

TympanicIncus(Anvil)Tympanic

membrane

Malleus(Hammer)

(Anvil)

Inner Ear

Roundwindow

Vestibulocochlear nerve(VIII) (cochlear branch)

Ovalwindow

Cochlea

Semicircularcanals Stapes

(stirrup)

Osseous labyrinth – outer bonywhite layer

Membranous labyrinth – inner gray layer

Cochlea

Oval window

Scala vestibuli

Scala tympani

Cochlear duct

Organ of Corti

Cochlea

Vestibularmembrane

Tectorialmembrane

Scalamedia*

Scala vestibuli(Vestibular duct)

Organ ofCorti

Basilar membrane

Scala tympani(Tympanic duct)

*Cochlear duct

"Cochlea" means snail in latin

Cochlea - Slide

ScalaOrgan of

Scala vestibuli(Vestibular duct)

Vestibularmembrane

Scalamedia*

Organ ofCorti

Scala tympani(Tympanic duct)

membrane

Tectorialmembrane

Basilar membrane

*Cochlear duct

Tuning Fork and Mallet

References

http://biology.clc.uc.edu/fankhauser/Labs/Anatomy_&_Physiology/A&P202/Special_Senses/Histology_Ear.htm