| kidney | | |
| n. (body) | 1. kidney | either of two bean-shaped excretory organs that filter wastes (especially urea) from the blood and excrete them and water in urine.; "urine passes out of the kidney through ureters to the bladder" |
| ~ nephron, uriniferous tubule | any of the small tubules that are the excretory units of the vertebrate kidney. |
| ~ adrenal, adrenal gland, suprarenal gland | either of a pair of complex endocrine glands situated near the kidney. |
| ~ excretory organ, urinary organ | an organ that separates waste substances from the blood and discharges them. |
| ~ arcuate artery of the kidney | curved arteries of the kidney. |
| ~ arteria renalis, renal artery | an artery originating from the abdominal aorta and supplying the kidneys and adrenal glands and ureters. |
| ~ arcuate vein of the kidney, vena arcuata renis | veins that receive blood from interlobular veins of kidney and rectal venules. |
| ~ renal vein, vena renalis | veins that accompany renal arteries; open into the vena cava at the level of the 2nd lumbar vertebra. |
| ~ venae interlobulares renis | interlobular veins of the kidney; receive blood from the arcuate vein and empty into the renal veins. |
| ~ venae renis | veins of the kidney; drain the kidney into the renal vein. |
| ~ renal cortex | the cortex of the kidney containing the glomeruli and the convoluted tubules. |
| ~ urinary tract | the organs and tubes involved in the production and excretion of urine. |
| ~ renal pelvis, pelvis | a structure shaped like a funnel in the outlet of the kidney into which urine is discharged before passing into the ureter. |
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