PNS Final: The Ear Exam Questions And
Answers |Latest 2025 | Guaranteed Pass
What is the name of the Ectodermal thickening on the lateral "head" of the ear -
Answer✔Placode
When the Placode invaginates, it gives rise to what structures - Answer✔Auditory Pit and
Auditory Vesicle
What does the Auditory Vesicle give rise to - Answer✔Membranous Inner Ear
What is the Auditory Tube and Tympanic Cavity derived from - Answer✔First Pharyngeal Pouch
What is the Malleus derived from - Answer✔Dorsal End of the Ventral Mandibular Cartilage
What does the Incus develop from - Answer✔Dorsal end of the First Pharyngeal Arch
What does the Stapes derive from - Answer✔Dorsal End of the Second Pharyngeal Arch
What does the Tympanic Membrane develop from - Answer✔Interstitial Mesoderm
What does the External Acoustic Canal develop from - Answer✔First Pharyngeal Groove
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What does the Auricle develop from - Answer✔A groove next to the First Pharyngeal Groove
What two parts make up the external ear - Answer✔Auricle and External Acoustic Meatus
Which of the extrinsic ear muscles is the smallest and inserts on the front of the helix -
Answer✔Anterior Auricular
Which of the extrinsic ear muscles is the largest and inserts on the superior side of the auricle -
Answer✔Superior Auricular
Which part of the External Acoustic Meatus is within the Temporal Bone - Answer✔The medial
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What is produced by the modified sweat glands in the External Acoustic Meatus -
Answer✔Cerumen
Where does the External Acoustic Meatus terminate - Answer✔Tympanic Membrane
In which direction should you pull on the lobule to do an otoscopic exam - Answer✔Out, down
and forward
The Posterior Auricular Artery is a branch of what major artery - Answer✔External Carotid
The Anterior Auricular Artery is a branch of which major artery - Answer✔Superficial Temporal
The Auricular Artery is a branch of which major artery - Answer✔Occipital
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