FMA15900Urinary
The paired retroperitoneal organ on the left side that filters blood to regulate fluid, electrolyte, and acid–base homeostasis.
Filters systemic blood to form urine and regulate systemic fluid balance.
Left retroperitoneal space of the posterior abdominal wall, inferior to the spleen.
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Renal arteries deliver a high volume of systemic arterial blood to the kidneys for continuous filtration.
Filtered blood exits the kidneys via the left and right renal veins to return to the inferior vena cava.
The adrenal glands sit directly superior to the kidneys, and endocrine hormones regulate renal water and electrolyte reabsorption.