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

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Anatomy of the Pediatric Ear

Pediatric ear: frontal section

Prominence of lateral semicircular canal

Incus

Auricle

Tegmen tympani

Malleus (head)

Epitympanic recess

Limbs of stapes

Facial nerve (CN VII) (cut)

Base of stapes in vestibular window

Vestibule

Semicircular ducts, ampullae, utricle, and saccule

Facial nerve (CN VII) (cut)

Vestibular nerve

Cochlear nerve

Internal acoustic meatus

Vestibulocochlear

nerve (CN VIII)

Tympanic

membrane

External

acoustic

meatus

Promontory

Tympanic cavity

Cochlear (round) window

Adult

Auditory tube (eustachian)

Child

Helicotrema

Scala vestibuli

Cochlear duct

containing

spiral organ

(of Corti)

Scala tympani

Cochlea

Note: Arrows indicate

course of sound waves.

Nasopharynx

Auditory tube is shorter

and more horizontal

Auditory tube

Plate BP28

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