anatomy of - library catalog | college of dupage library part ear.pdf · 2014. 8. 6. · anatomy of...
TRANSCRIPT
Anatomy of
Semicircular canals
Helix
Crura ofantihelix
Externalacousticmeatus -
Antihelix
Antitragus
Ear lobe
1 I 2
K l
Posterior LateralI
Anterior
Internal View
1. Malleus (hammer)2. Incus (anvil)3. Tympanic ring4. Tympanic membrane
(eardrum)
| :
Tympanicmembrane(eardrum)
Temporal bone
Styloid process
11
L
Internal carotid artery
-Tensor tympani muscle
10
Eustachian tube
Cartilaginous portion ofeustachian tube
Membraneous Labyrinth
1. Malleus2. Incus
3. Stapes in oval vestibular window4. Vestibule5. Ampullae6. Lateral semicircular canal7. Posterior semicircular canal8. Anterior semicircular canal9. Common bony limb10. Cochlear nerve (VIII cranial)11. Cupula
External View
1. Incus (anvil)2. Malleus (hammer)3. Tympanic membrane
(eardrum)
Anterolaterai View
1. Posterior semicircular canal2. Anterior semicircular canal3. Lateral semicircular canal4. Ampulla of anterior canal5. Ampulla of lateral canal6. Stapes7. Vestibule8. Cupula9. Cochlear nerve (VIII cranial)
Photography of Denoyer-Geppert models
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1.2.3.4.5.6.7.8.9.10.
14.15.16.17.18.19.20.21.22.23.24.25.26.
THREE PART EAR
Auricle (or pinna)Cartilage and skinExternal auditory canalWax-producing glandsEarlobeCartilage of external auditory meatusTemporal boneStyloid processTympanic (fibrocartilaginous) ringTympanic membrane (eardrum)
Auditory Ossicles:
11.12.13.
Anterior ligament of malleusPosterior ligament of incusTensor tympani muscleStapedius muscleTympanic cavityEustachian tubeAnterior semicircular canalAmpulla of superior canalPosterior semicircular canalAmpulla of posterior canalLateral semicircular canalAmpulla of lateral canalVestibule
27.
28.29.
30.31.32.33.34.35.36.
Incus (anvil)Malleus (hammer)Stapes (stirrup)
Oval window (located under stapes)(Vestibular window)Round window (cochlear window)Cochlea, first turn
Scala vestibuli (orange)Scala media (white)Scala tympani (blue)
Cochlea, second turnCupulaVestibular nerve (VIII Cranial)Cochlear nerve (VIII Cranial)Facial nerve (VII Cranial)Internal carotid arteryCartilaginous portion of Eustachian tube
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