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[[Image:sagkidlabelled.jpg|right|thumb|250px|<small><center>A labelled saggital section of a lamb kidney(Courtesy of Donal McNally - University of Nottingham)</center></small>]]

[[Image:lambpigkidcombDM.jpg|right|thumb|250px|<small><center>A picture showing a typical lamb and pig kidney. (Courtesy of Donal McNally - University of Nottingham</center></small>]]

==Introduction==

==Introduction==

The urinary system includes the [[Macroscopic Renal Anatomy - Anatomy & Physiology|kidneys]], the [[Ureters - Anatomy & Physiology|ureters]] which join the kidneys to the [[Urinary Bladder - Anatomy & Physiology|bladder]], the bladder itself and the [[Urethra - Anatomy & Physiology|urethras]] which permit urine collecting in the bladder to be excreted - a process termed [[Process of Micturition - Anatomy & Physiology|micturition]]. Understanding the physiology of kidney function is key when looking at the diseases  that occur in this organ, and the anatomy of all the structures within the urinary sytem is significant as a foundation to understanding the [[Urinary System - Pathology| pathology]] which affects them. The kidneys also play a vital role in the excretion of many different types of veterinary drug; [[Kidney Function and Age - Physiology|newborn and aged]] animals have altered kidney functional capacity and this is an important factor in drug excretion rates.  

The urinary system includes the [[Macroscopic Renal Anatomy - Anatomy & Physiology|kidneys]], the [[Ureters - Anatomy & Physiology|ureters]] which join the kidneys to the [[Urinary Bladder - Anatomy & Physiology|bladder]], the bladder itself and the [[Urethra - Anatomy & Physiology|urethras]] which permit urine collecting in the bladder to be excreted - a process termed [[Process of Micturition - Anatomy & Physiology|micturition]]. Understanding the physiology of kidney function is key when looking at the diseases  that occur in this organ, and the anatomy of all the structures within the urinary sytem is significant as a foundation to understanding the [[Urinary System - Pathology| pathology]] which affects them. The kidneys also play a vital role in the excretion of many different types of veterinary drug; [[Kidney Function and Age - Physiology|newborn and aged]] animals have altered kidney functional capacity and this is an important factor in drug excretion rates.