title: Prenatal development of the eye tunics in the dromedary camel (Camelus dromedarius).
abstract: Studies of ocular development in the dromedary camel (Camelus 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 Descemet's membrane and pigmentation in the corneo-scleral junction, which represent an adaptive modification in relation to a severe environment.
authors.affiliation: Department of Veterinary Anatomy, Faculty of Agriculture, Tottori University, 101 minami 4-chome Koyama-cho Tottori-shi Tottori 680-8553, Japan; Department of Anatomy and Embryology, Faculty of Veterinary Medicine, Menoufyia University Sadat City Branch, Sadat City 32897, Egypt.
authors.forename: M
authors.initials: M
authors.lastname: Abdo
authors.forename: Y Z
authors.initials: YZ
authors.lastname: Hosaka
authors.forename: A
authors.initials: A
authors.lastname: Erasha
authors.forename: M
authors.initials: M
authors.lastname: Nada
authors.forename: S
authors.initials: S
authors.lastname: Ali
authors.forename: M
authors.initials: M
authors.lastname: Uehara
mesh_terms: D000818:Animals; D002162:Camelus / Q000196:embryology* / Q000254:growth & development; D047108:Embryonic Development; D005123:Eye / Q000196:embryology* / Q000254:growth & development; D047109:Fetal Development; D005865:Gestational Age