A quick method to expose the structures and relations of the middle ear and inner ear by cadaveric dissection.
Morphologie
; 106(353): 107-114, 2022 Jun.
Article
em En
| MEDLINE
| ID: mdl-33947629
ABSTRACT
INTRODUCTION:
The temporal bone contains structures related to hearing and balance, and is a valuable learning resource for medical students and trainee surgeons. The middle ear and inner ear are difficult to demonstrate by cadaveric dissection as the structures are closely contained in a small space in the dense temporal bone. Consequently, the teaching and learning of the ear are largely relegated to virtual and theoretical images, and models, which has resulted in a knowledge gap in medical students and prospective surgeons. The present study aimed to elucidate a technique that exposes the structures and relations of the middle and inner ear by cadaveric dissection. MATERIALS ANDMETHODS:
Forty-seven adult formalin-fixed cadaveric specimens were dissected by the proposed technique. The method was evaluated based on the extent of the structures exposed and time taken for dissection.RESULTS:
The method exposed all the contents and relations of the middle and inner ear, including the course of the facial nerve in the petrous temporal bone, in a few minutes, without use of specialized instruments like saw, drill, endoscope, operating microscope or electric trephine.CONCLUSION:
This dissection method combines maximal exposure of the structures and relations of the middle and inner ear with a short dissection time, sans use of specialized tools. It can be incorporated in the gross anatomy curriculum for medical studentsdue to the short dissection time and completeness of structures exposed. The prosected specimen can also be plastinated for use as a teaching-learning resource for medical students and surgeons.Palavras-chave
Artère carotide interne; Cochlea; Cochlée; Dissection; Ear ossicles; Enseignement; Eustachian tube; Facial nerve; Inner ear; Internal carotid artery; Mastoid; Mastoïde; Membrane tympanique; Middle ear; Nerf facial; Oreille interne; Oreille moyenne; Osselets de l'oreille; Teaching materials; Trompe auditive; Tympanic membrane
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Orelha Média
/
Orelha Interna
Tipo de estudo:
Observational_studies
Limite:
Adult
/
Humans
Idioma:
En
Revista:
Morphologie
Assunto da revista:
ANATOMIA
Ano de publicação:
2022
Tipo de documento:
Article