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Anatomy of the Ear

Anatomy of the Ear

Auditory sensation, commonly called hearing, involves the transformation of sonic waves into neural impulses facilitated by the structures of the auditory organ. The prominent, flesh-like structure on the side of the head, called the auricle, directs sound waves towards the auditory canal. The auricle is often mislabeled as the pinna, a term more aligned with mobile structures like a feline's external ear. The auditory canal penetrates the cranium via the external auditory meatus of the...

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Related Experiment Video

Updated: Jul 12, 2026

Endaural Endoscopic Atticoantrotomy Retrograde Mastoidectomy using a Constant Suction Bone-drilling Technique

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Reconstructive Surgery of Auricular Defects: An Overview.

Ali Ebrahimi¹, Alireza Kazemi², Hamid Reza Rasouli¹

¹Trauma Research Center, Baqiyatallah University of Medical Sciences, Tehran, IR Iran.

|February 4, 2016

Summary

Auricular reconstruction is a complex plastic surgery challenge. Cartilage stem/progenitor cells show promise for elastic tissue restoration in craniofacial defect repair.

Keywords:

Auditory Prosthesis Auricular Appendage Cosmetic Reconstructive Surgical Procedures External Ear Reconstructions

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Area of Science:

Plastic Surgery
Regenerative Medicine
Bioengineering

Background:

Auricular reconstruction presents significant challenges in plastic surgery.
Acquired auricular defects result from trauma, tumor ablation, and burns.
Management strategies for defects in all thirds of the ear are reviewed.

Purpose of the Study:

To review management options for auricular defects.
To explore current and future techniques in auricular reconstruction.

Main Methods:

Systematic review of original research papers.
Literature search from January 1995 to December 2014.
Focus on approaches by plastic surgeons, otolaryngologists, and maxillofacial surgeons.

Main Results:

Autologous stem cell populations are a promising area for craniofacial defect treatment.
Cartilage stem/progenitor cells (CSPCs) demonstrate high chondrogenicity.
CSPCs can yield elastic reconstructive material for long-term tissue restoration.

Conclusions:

Auricular reconstruction demands significant surgical expertise and knowledge of diverse techniques.
Reconstructive bioengineering and regenerative medicine offer promising novel approaches.
Further research is necessary for widespread clinical application of new techniques.