The cartilage of the third eyelid: a comparative macroscopical and histological study in domestic animals

Annals of Anatomy = Anatomischer Anzeiger : Official Organ of the Anatomische Gesellschaft
T SchlegelW M Amselgruber

Abstract

The purpose of this comparative study was to evaluate morphological differences between the cartilages of the third eyelid in dogs, cats, pigs, cows, small ruminants and horses. For that reason a total of 83 third eyelids were investigated. By the aid of a modified maceration technique, the three-dimensional form of the cartilage could be demonstrated for the first time. Generally, the cartilage consists of a long narrow appendix which is followed by a variable crossbar. In dogs the appendix is cone shaped in the basal end and extends to form a triangular plate. The former is crescent-like in shape and has a marked bulge. The cartilage of the cat consists of an appendix which is enlarged in the proximal end as compared to the dog. The crossbar resembles a reverse s-form with ends tapering off to a point. In contrast pig and cow cartilage possess a typical anchorform whereas the cartilage of small ruminants starts with a thin rod which extends in a slightly curved form ending in an oval plate. The crossbar is crescent-like in these animals. In the horse the base of the cartilage is surrounded by a massive fatty tissue and the crossbar has a characteristic hook-form. Moreover, there are significant differences in regard to the qu...Continue Reading

References

Jan 1, 1994·Annals of Anatomy = Anatomischer Anzeiger : Official Organ of the Anatomische Gesellschaft·U SchrammC Keeler

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Citations

Sep 2, 2010·Experimental Eye Research·Yasuyoshi UmedaAkira Murakami
Nov 5, 2011·Veterinary Ophthalmology·David WilliamsAdele Caldwell
Nov 29, 2012·Veterinary Ophthalmology·Rachel A Allbaugh, Charles M Stuhr
Jul 17, 2004·Annals of Anatomy = Anatomischer Anzeiger : Official Organ of the Anatomische Gesellschaft·Gunna Arends, Uda Schramm
Oct 22, 2016·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·Xiaodan YuYasuhiko Kawakami
Nov 21, 2007·Anatomia, histologia, embryologia·J Klećkowska-Nawrot, P Dziegiel
Feb 24, 2006·Developmental Dynamics : an Official Publication of the American Association of Anatomists·Tamara A Franz-Odendaal, Matthew K Vickaryous
Apr 2, 2021·Integrative Organismal Biology·S P Collin, H B Collin
Nov 5, 2021·Ophthalmic Plastic and Reconstructive Surgery·Yohaann A GhoshJonathan R Clark

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