kidney[kid′nē]

Type:Term

Definitions
1. One of the paired organs that excrete urine, remove nitrogenous wastes of metabolism, reclaim important electrolytes and water, contribute to blood pressure control(renin-angiotensin system) and erythropoiesis (via erythropoietin production). The kidneys are bean-shaped organs about 11-cm long, 5-cm wide, and 3-cm thick, lying on either side of the vertebral column, posterior to the peritoneum, opposite the 12th thoracic and 1st–3rd lumbar vertebrae. In animals, the kidney has variable size and location.

Synonyms
ren , nephros

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