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Prenatal Development of the Eye Tunics in the Dromedary Camel ( C amelus dromedarius )
Author(s) -
Abdo M.,
Hosaka Y. Z.,
Erasha A.,
Nada M.,
Ali S.,
Uehara M.
Publication year - 2014
Publication title -
anatomia, histologia, embryologia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.34
H-Index - 35
eISSN - 1439-0264
pISSN - 0340-2096
DOI - 10.1111/ahe.12069
Subject(s) - cornea , anatomy , biology , prenatal development , rump , ophthalmology , fetus , medicine , pregnancy , genetics
Summary Studies of ocular development in the dromedary camel ( C amelus dromedarius ) have not been reported previously. The aim of the present investigation was therefore to document the major landmarks and the time course in the prenatal development of the eye tunics in dromedary camel and its accommodation with the surrounding hard environment of the desert. Serial histological sections of dromedary camel embryos and foetuses were used. Age estimation was made on the basis of gestational size, crown vertebral‐rump length ( CVRL ), which ranged 1.2–110 cm. The eye of the dromedary camel developed in a similar manner to that of the human and domestic animals eyes; the principal differences were in the time of occurrence of certain developmental events, pigmented peripheral cornea near the limbus, a remarkably thickened D escemet's membrane and pigmentation in the corneo‐scleral junction, which represent an adaptive modification in relation to a severe environment.