Comparative histological study of liver in male Anas crecca

Abstract

The current study was conducted in the laboratory of histology for Graduate Studies in the Department of biology/ College of Education for women / University of Kufa . The study included, histological study to the liver in male ten birds Anas crecca. The aims of this study were achieved to estimate histological charecterstic and structers in Anas crecca. The results of the current study showed Histological study explained the liver in Anas crecca surrounded by a thin layer of dense connective tissue called Glissons capsule. The liver is divided into unclear and irregular lobules. The central vein represent the core of each lobule. From the central vein , the hepatic laminae which consist of one to two hepatic cell layer were branched, anastomosing, and radially extend to the periphery of the lobule. Blood sinusoids lining with endothelium and few number of large, irregular Kupffer cells in their sinusoids lumen. The hepatocyte which have one or two nucleus in each cell made the skeleton of paranchyma of liver. The lobules surrounded perpherally by portal area which made from dense connective tissues , it constituetes of portal vein, hepatic artrey, and bile duct, in addition to lymphatic vesseleswhich lining by endothelium. These structures are wide and have high density of connective tissue and the three structures have wide diameter near the liver hilum from that in the center of the liver.

Keywords

Liver, Anas crecca