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- Title
Anatomía e histología de las articulaciones de la laringe canina. Un modelo experimental.
- Authors
Mateo, Alejandra G.; Silva, Liliana B.; Sánchez, Hilda L.
- Abstract
The aim of this study was to describe the normal anatomy of the joints of the larynx and adjacent structures in dogs with a histological correlation. seven bodies of dogs from private veterinary donated by the owners and Necropsy Service of the Faculty of Veterinary Sciences of the UNLP were used. The animals used were of different ages, race and sex. Two males, a mestizo term unborn and one boxer eight years. Five female mestizo 1 month, another two months, greyhound six years old and a German shepherd twelve years old. The larynx were extracted from fresh corpses, by dissecting the macroscopic anatomical observation of the characteristics of their cartilages, identifying joints that make up the body, the joint surfaces and their mobility was made. For the observation of the larynx and unborn puppies laboratory magnifying glass was used. joint photographs were taken with a digital camera. For microscopic observation, organ samples were taken fresh joint of adults, for the unborn and the completas. All larynges puppies were processed samples were fixed for 48-72 hours in neutral buffered formalin 6% to processing with conventional histological techniques. Samples were decalcified adults with EDTA. Entacadas and sectioned sheet 5-7 microns thick. Slides were mounted and stained with hematoxylin and eosin. The gross anatomy of the laryngeal joints of adult dogs revealed that these joints presented their own joint synovial type characteristics, tiroepiglótica exception was the joint where we note the presence of fibro-elastic tissue. The microscopic anatomy of samples of the animals studied demonstrated that tiroepliglótica joint has abundant amount of fibrous connective tissue and elastic between the joint surfaces. this was not observed in the presence of a joint synovium. The epiglottic cartilage showed in its constitution adipose tissue and elastic great quantity, in the younger animals. According to our findings the larynx of the dog may be homologous to the human larynx. By the structural similarities level joints could be a good model for experimental studies; however they lacking functional studies regarding differences, which would be considered to implement using traditional techniques human phonosurgery to be applied in the dog.
- Publication
Revista Argentina de Anatomia Online, 2016, Vol 7, Issue 2, p64
- ISSN
1853-256X
- Publication type
Article