scholarly journals The external ear morphology and presence of tragi in Australian marsupials

2020 ◽  
Vol 10 (18) ◽  
pp. 9853-9866
Author(s):  
Hayley J. Stannard ◽  
Kathryn Dennington ◽  
Julie M. Old
Keyword(s):  
External Ear ◽  
Ear Morphology

scholarly journals Ear morphology and morphometry as potential forensic tools for identification of the Hausa, Igbo and Yoruba populations of Nigeria

2021 ◽  
Vol 45 (1) ◽  
Author(s):  
Samson Taiwo Fakorede ◽  
Khalid Olajide Adekoya ◽  
Taiwo Peter Fasakin ◽  
Joshua Odubambo Odufisan ◽  
Bola Oboh
Keyword(s):  
Personal Identification ◽  
Stepwise Discriminant Analysis ◽  
External Ear ◽  
Sex Estimation ◽  
Ethnic Populations ◽  
Ear Morphology ◽  
Left And Right ◽  
Morphology And Morphometry ◽  
Forensic Tools ◽  
The Right

Abstract Background The human external ear is unique in every individual in terms of shape, size and dimension making it suitable in forensic anthropology for sex estimation and personal identification purposes. The study aimed to evaluate sexual dimorphism and ethnic specificity of the external ear in major Nigerian ethnic populations. Results There was variation in the morphological features of the external ear of the sampled subjects. The external ear features vary in the right and left ears in both sexes of the ethnic groups. All variables were statistically significant (p < 0.05) except ear width. Univariate discriminant function gave sex prediction accuracies between 56.4 and 57.3% for left and right ears, respectively. Population-specific sex prediction accuracy using stepwise discriminant analysis of left ear variables ranged 58–69.7% and 57.5–74.2% for right ear. Conclusion The ear parameters showed potential for sex estimation, but cannot be solely relied upon for personal identification.

scholarly journals External Ear Features: Role in Tracing Inheritance

2020 ◽  
Vol 16 (4) ◽  
pp. 201-207
Author(s):  
Bhima Neupane ◽  
Brihaspati Sigdel ◽  
Chacchu Bhattarai ◽  
Kanaklata Iyer
Keyword(s):  
Morphological Variation ◽  
Morphological Character ◽  
Morphological Characteristics ◽  
External Ear ◽  
Medical Sciences ◽  
Genetic Inheritance ◽  
Helpful Tool ◽  
Ear Morphology

Background: The external ear is unique in shape, size and orientation. It has symmetry and asymmetry among generations. Its morphological variation helps to trace genetic inheritance. The objective of this study was to identify this morphological variation among parents and siblings. Methods: The study was conducted in Manipal colleges of medical sciences. Images were procured from 147 families. The morphological character of external ears including, shape of pinnae, concha, tragus, ear lobule and attachment of lobule to cheek were matched among Parents and offspring. Results: This study included 882 pinnae in 147 families. Total 4410 morphological characteristics have been analyzed. Tragus was the most common matching character between parents and offspring Kappa measuring coefficient was statistically significant for shape of pinna, concha, ear lobule, ear lobule attachment to cheek. Conclusions: The most of external ear morphology matches between parents and offspring which may be a helpful tool in tracing hereditary inheritance.

Injuries of the External Ear

1990 ◽  
Vol 23 (5) ◽  
pp. 1003-1018 ◽  
Author(s):  
Jerry Templer ◽  
Gregory J. Renner
Keyword(s):  
External Ear

Is the Acidic pH of the External Auditory Canal Playing a Significant Role in the Treatment of Acute Otitis Externa?

2018 ◽  
Vol 69 (8) ◽  
pp. 2304-2305
Author(s):  
Oana Ruxandra Iana ◽  
Dragos Cristian Stefanescu ◽  
Viorel Zainea ◽  
Razvan Hainarosie
Keyword(s):  
External Auditory Canal ◽  
Otitis Externa ◽  
Proton Pumps ◽  
Acidic Ph ◽  
External Ear ◽  
Ph Values ◽  
The World ◽  
Subcutaneous Tissues ◽  
Low Levels ◽  
Value Changes

Variable pH values for skin have been reported in the literature, all within the acidic range, varying from 4.0 up to 7. 0. The origin of the acidic pH remains conjectural, and several factors have been incriminated with this role, such as eccrine and sebaceous secretions as well as proton pumps. Keeping low levels of pH prevents microbial dispersal as well as multiplication. The skin in the external auditory canal is also covered with this acidic mantle with antimicrobial value. Changes of pH in the external ear can lead to acute otitis externa. This condition is defined by the inflammation and infection of the cutaneous and subcutaneous tissues of the external auditory canal. 10% of the world�s population may suffer from acute otitis externa at least once in their lifetime. This paper aims to consolidate the relevance of an acidic pH in the healthy external ear and its relation to the pathogenesis and treatment of otitis externa through a prospective and interventional clinical study on 80 patients who presented to the outpatient department at Prof. Dr D. Hociota ENT Institute in Buch

Rhabdomyosarcoma of the External Ear Canal Treated with Brachytherapy

2016 ◽  
Vol 2016 (1) ◽  
Author(s):  
Mahvish Qureshi MD ◽  
◽  
Sana Farooki MD ◽  
Chibuzo O’Suoji MD ◽  
◽  
...  
Keyword(s):  
External Ear ◽  
Ear Canal ◽  
External Ear Canal

Congenital deformities of the middle and external ear

1977 ◽  
Vol 50 (598) ◽  
pp. 714-727 ◽  
Author(s):  
P. D. Phelps ◽  
G. A. S. Lloyd ◽  
P. W. E. Sheldon
Keyword(s):  
External Ear ◽  
Congenital Deformities
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