Histological study of renal corpuscles and juxta glomerular apparatus in Japanese quail (Coturnix coturnix japollica)*

Abstract

The study was conducted on kidneys of 25 adult Japanese quails. Fresh specimens fixed in 10% neutral buffered formalin, Bouin's and Zenker's solutions were processed by routine paraffin embedding technique and sections were stained by Mayer's haemalum-eosin- phloxine and Crossman's modification of Mallory's triple stain methods. Renal corpuscles were of 2 types-smaller and larger. Srnaller renal corpuscles were in large numbers and were distributed towards the periphery of renal cortex. Larger renal corpuscles were seen closer to renal medulla and were only few in numbers. The parietal layer of Bowman's capsule in both types of renal corpuscles was lined by squamous epithelial cells with fusiform nucleus. Visceral layer showed cuboidal podocytes projecting into the capsular space. A juxta glomerular apparatus consisting of macula densa, afferent and efferent arterioles, extra glomerular nlesangial cells or lacis cells or goormaghtigh cells and juxta glomerular cells was also observed in the present study.