URINARY SYSTEM 15-05-12 • Students should able to describe the general and comparative anatomical features of kidney, ureters, urinary bladder and urethra (Male & Female). • Kidneys • Ureters • Urinary Bladder • Urethra Kidneys • Retroperitoneal • Pressed against the dorsal abdominal wall • on either side of the vertebral column • Predominantly in the lumber region – May extend into the intrathoracic part of the abdominal cavity • Right kidney further cranial in position • Left kidney is more mobile » Ruminants = rumen pushes it towards right half of abd. • Dorsal & ventral surfaces • Lateral & Medial borders • Cranial & caudal poles Form & Position H O • Right kidney > Heart shaped • Right > elongated, Elliptical, • Under last 2 ribs & L1 Tx Flattened dorsoventrally. Proc. – Last rib & L1, L2 or L3 Tx Proc. • Left Kinney > Pyramidal • Left > three sided shaped – Rumen filled > caudal & • Last rib & L1 or L2 Tx Proc. ventral to the right kidney , L3, L4 & L5.