Head,ear,Nose,Throat

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Head,ear,Nose,Throat
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Contents
Head & Ear
1
Nose
2
Neck
3
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HEAD & EAR
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The skull
Head
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The face
Head
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Head
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Ear
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External Ear
Auricle(pinna)
Cartilage and skin
Main functions
Collection and focus of sound waves
Location of sound
Protection of the external ear from water and dirt
External auditory ear canal
S-shaped pathway
(From out ear to TM)
Cartilaginous framework
Hair follicles
Sebaceous glands : secrete cerumen
Protect middle and inner ear
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External Ear
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Middle And Inner Ear
An air-filled cavity by the TM
Function is amplification of sound
Sound waves cause the TM to vibrate
Vibration is …(생략)