The Urinary System
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Last updated 4:39 AM on 12/16/22
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18 Terms
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the urinary system
the bodily system that is involved in the excretory process
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urinary bladder
stores urine in the body until elimination
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kidneys
the bean-shaped organs in the body that filter blood and help the body pass waste as urine
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ureters
the ducts by which urine passes from the kidney to the bladder
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urethra
the duct where urine is transported to the outside of the body
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renal cortex
the outer layer of the kidney
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renal medulla
the innermost layer of the kidney
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erythropoietin
a hormone produced by the renal cortex that stimulates the production of new red blood cells
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urine
liquid waste excreted by the kidneys
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renal artery
allows oxygenated blood to enter the kidney
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renal vein
allows filtered, deoxygenated blood to leave the kidney
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nephrons
the structural and functional unit of the kidney that removes waste and reabsorbs important molecules and water
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glomerulus
a small, dense capillary network that filters materials (such as water, salt, and amino acids) from the blood
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filtrate
the materials that leave the blood through the walls of the glomerulus
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tubules
the parts of the nephron where glucose and other useful materials are reabsorbed back into the blood
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800 mL
What is the maximum amount of urine the bladder can hold?
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internal and external sphincters
What must relax in order for urine to be excreted from the body?
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renin
a hormone that regulates blood pressure by retaining or removing water and salt
