Liu Lei, Zhaxi Yin-Pai and Wang Wen-hui
College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu, P.R. China
ABSTRACT
The macroscopic and microscopic structure of the mucosal-associated lymphoid tissue of the oesophagus and stomach of bactrian camel were observed by histological and histochemical methods. The results showed that a plenty of lymphoid tissues were mainly distributed in the lamina propria of the glandular areas of stomach by diffuse lymphatic tissues, solitary lymphoid nodules and aggregated lymphoid nodules. Camel’s stomach is not only a digestion organ but also an important organ of immunity with special structure, because there are a large number of lymphoid tissues in the stomach due to the existence of unique glandular sacs, developed mucosal duplicature, and especially the aggregated lymphoid nodules.
Key words: Bactrian camel, lymphoid tissue, oesophagus, stomach