Studies On Morphological And Histochemical Seasonal Changes On The Lacrimal Apparatus Of The One-Humped Camel (Camelusdromedarius)

Subscribe to access this work and thousands more

INTRODUCTION

The scientific classification of the animal species in this issue (Camelus dromedarius) Wilson, (1984) is as follows: Class : Mammalia. SubClass : Eutheria. Superorder : Paraxonia. Order :Artiodactyla. Suborder: Tylopoda. Family: Camelidae. Subfamily: Camelinae Genus : Camelus. Species : Dromedarius. : Bactrianus. There are two species of camels: the one-humped (Camelus dromedarius), and the two-humped camel (Camelus bactrianus) (Al-Ramadan and Ali, 2012). The one-humped camel (Camelus dromedarius) is found in Iran, Iraq, Arabia, Egypt, Sudan, NorthAfrica, Somaliland, India, and many other countries (Sadegh et al., 2007). This animal is adapted to the hot climate of the desert where it is subject to the high temperature and scorching sun rays. The lacrimal apparatus system consists of lacrimal gland, excretory ducts, lacrimal ducts, lacrimal sac and nasolacrimal duct. It provides a passage for tear drainage from the eye to the nasal cavity. The system for each eye in most species consists of dorsal and ventral lacrimal puncta (openings) through which the excess lacrimal secretion is drained from the eye into the lacrimal ducts, lacrimal sac, and the nasolacrimal duct (Abdalla et al., 1970; Sisson and Grossman, 1975; Ibrahim et al., 2006; Alsafy, 2010)

Subscribe to access this work and thousands more