Volume 14
Issue 2
Biology
JOURNAL OF
POLISH
AGRICULTURAL
UNIVERSITIES
Available Online: http://www.ejpau.media.pl/volume14/issue2/abs-12.html
ANATOMICAL CONDITIONS OF STRENGTHENING OF THE ACOUSTIC WAVE IN THE MIDDLE EAR IN SELECTED SPECIES OF MAMMALS
Anna Charuta, Jarosław Wysocki, Urszula Wieczorek
Vertebrates Morphology Department
of University of Humanities and Sciences in Siedlce, Poland
ABSTRACT
The aim of the research was to analyze anatomical bases for the effect of sound strengthening. Lenghts of the arm of the lever created by the auditory bones were also measured. The research was conducted on the temporal bones of 9 species of mammals: humans, Macaques, dogs, cats, American Minks, cattle, guinea pigs and rats. Twenty bones of each species were observed: 10 males and 10 females. The calculations were made with the use of a computer programme – Multi Scan. The research showed that carnivore (cats, Minks and dogs) had the best anatomical conditions for sound strengthening in the middle ear.
Key words: middle ear, measurements, strengthening of acoustic wave, mammals.
Anna Charuta
Vertebrates Morphology Department
of University of Humanities and Sciences in Siedlce, Poland
B. Prusa Str. 14, 08-110 Siedlce, Poland
email: anna.charuta@neostrada.pl
Jarosław Wysocki
Vertebrates Morphology Department
of University of Humanities and Sciences in Siedlce, Poland
B. Prusa Str. 14, 08-110 Siedlce, Poland
Urszula Wieczorek
Vertebrates Morphology Department
of University of Humanities and Sciences in Siedlce, Poland
B. Prusa Str. 14, 08-110 Siedlce, Poland
Responses to this article, comments are invited and should be submitted within three months of the publication of the article. If accepted for publication, they will be published in the chapter headed 'Discussions' and hyperlinked to the article.