Gross anatomical and micromorphological studies on the esophagus of the camel( camelus dromedarius ) during its ontolgenetic development

In 19 camel fetusee (Came1us dromedarius) ranging from 20 - 100 cm CRL,•one young camel and two adult onesthe esophagus was studied anatomically and in 10 camel fetuses, ranging from 2 - 95 cm ORL, one young camel and one adult camelhistologically By thiscovered. The position of the esophagus is unchanged durd ng all the developmental stages. At the pharyngo-esophageal junction, it lies dorsal to the larynx, atthe cervi”cal part on the dorsa-lateral aspect of thetrachea, at the thoracic inlet on the left side of the trachea and at the thoracic part dorsal to the trachea.The lengtht the diameter and the thickness of the esophageal wall increase wIth the increasing age. Thelength of the esophagus in the adult camel is about 175 em, the diameter about 21 mm in the adult camel.The esophagus of the camel can be divided into a pharyngo- esophageal junction, a cervical and a thoracic part.