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Arteries of Urinary System
Cardiovascular System

Arteries of Urinary System

Arteriae systematis urinarii

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Description

The urinary system consists of the kidneys, ureters, urinary bladder and urethra. The kidneys are supplied directly from the abdominal aorta via the renal arteries. The ureters receive their blood supply through a series of small ureteric branches arising from the abdominal aorta and renal, gonadal, and common iliac arteries. The bladder receives blood via the superior and inferior (male) vesical arteries.

The urethra which is the most sexually dimorphic component of the urinary system has slightly different supply between both sexes. In the female, the arterial supply to the urethra is derived from the internal pudendal and the vaginal arteries. In the male, it is supplied by the inferior vesicle, middle rectal and internal pudendal arteries.

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Urinary System

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In the urinary system, urine exits the body via the urethral meatus, a distinct structure incorporating features that defend the opening against local and/or ascending infections, emptying into the vaginal vestibule in females and the fossa navicularis in males.

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