Albino Rat Research Paper

The kidney of the albino rat is a paired organ bean shaped, smooth and possess convex and concave borders. Each kidney has dorsal and ventral surface, medial and lateral borders. The lateral border is convex while, the medial border is concave, indented hilus, and an upper and lower pole. The hilus and sides of the kidney of albino rat are surrounded by adipose tissue. Anatomically, the rat kidneys lay alongside the vertebral column in the abdominal cavity and suprarenal glands situated above their poles (David, 2000).
The mean weight of the right kidney is 1.1 gm while, the left one is 0.96 gm. The mean length, width and thickness of the right kidney is 1.28 cm, 0.88 and 0.81 cm respectively while those of the left is 1.23 cm, 0.85 and 0.79 cm (El-gammal et al., 2010).
The rat kidneys are reddish-brown in color and are covered by a thin connective tissue capsule that is adherent to sub capsular connective tissue. The kidney of albino rat consists of two regions, the outer cortex and the inner medulla. The cortex and medulla are arranged into renal pyramids. The apex of the each pyramid is called …show more content…
Type I was divided into four subtypes according to the occurrence of small extra branches of either the dorsal or ventral divisions of the renal artery directed to the renal poles. Type Ia. Extra branches were absent. Type Ib. The ventral or dorsal division, after its origin, gave off an extra branch to cranial pole. Type Ic. The dorsal or ventral division sent two extra branches to cranial pole which was supplied by extra branches. Type Id. The dorsal or ventral division gave off an extra branch to caudal pole. Type II. The ventral division sent a branch to the opposite of the dorsal surface or dorsal division sent a branch to opposite of the ventral surface (Yoldas and Dayan ,