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2014 Kidney
Kidney Termns
| Term | Definition |
|---|---|
| renal pelvis | structure that funnels the urine flowing from the nephrons to the ureter |
| renal cortex | outer portion of the kidney, filtration happens here. |
| renal medulla | inner layer of the kidney, contains the nephrons |
| renal vein | vein that drain the kidney |
| renal artery | arterie that arise from the descending aorta and feed blood to the kidneys |
| nephron | the processing unit of the kidney, filtration, reabsorption and secretion happen here. |
| ureter | tube of smooth muscle that carries urine to the bladder. |
| Bowmans Capsule | Receives filtrate from the glomerulus- fluid is then filtered |
| Glomerulus | structure that receives blood from the renal artery, extracts wastes from it. |
| Distal Tubule | K, Na and Cl is reabsorbed into the blood in this tubule. Hormones control the amount of reabsorption. |
| Loop of Henle | Water is reabsorbed in this area, the level of water retained in the blood is controlled by hormones. |
| Arterial Capillaries | capillaries that deliver “dirty” blood to the nephron, substances pass from the blood to the kidney at this location |
| Venous Capillaries | capillaries that drain cleaned blood from the kidney and return it to veins for return to the heart. |
| Collection Duct | Creatinine and some drugs are secreted into the urine in this location. Cells in the collection duct complete this process. Finished urine leaves this structure. |
| Ureter | tube that delivers urine from kidney to bladder |
| Bladder | muscular sac that stores urine prior to elimination from the body. |
| Urethra | muscular tube that delivers urine from the bladder to the external environment. |
| Internal urethral sphincter | controls movement of urine into the urethra. |
| External urethral sphincter | controls the movement of urine from the urethra into the outside environment. |