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(Netter Basic Science) Frank H. Netter - Atlas of Human Anatomy-Elsevier (2018)

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Ear and Course of Sound in Cochlea

Frontal section

Limbs of stapes

Prominence of lateral semicircular canal

Tegmen tympani

Incus

Malleus (head)

Epitympanic recess

Auricle

Facial nerve (CN VII) (cut)

Base of stapes in vestibular (oval) window

Vestibule

Semicircular ducts, ampullae, utricle, and saccule

Arcuate

eminence

Facial nerve (CN VII) (cut)

Vestibular nerve

Cochlear nerve

Internal acoustic

meatus

Vestibulocochlear

nerve (CN VIII)

External

acoustic meatus

Nasopharynx

Tympanic membrane

Parotid gland

Helicotrema

Tympanic cavity

Scala vestibuli

Promontory

Cochlear (round) window

Internal jugular vein

Auditory tube (eustachian)

Cochlear duct

containing

spiral organ

(of Corti)

Cochlea

Scala tympani

Adult

Child

Auditory tube

(eustachian)

Auditory tube

(eustachian) is shorter

and more horizontal

Plate 105

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Ear

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