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| Functions of the excretory system |
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Definition
| Collects and removes waste from the body; regulates the amount of fluid and salts in the body, helps maintain blood pH |
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| Bean shaped organ that filters waste from our blood |
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| Functional unit of the kidney - each kidney contains about 1 million nephrons |
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| Tube that carries urine from the kidney to the bladder |
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| Muscular pouch that temporarily stores urine |
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| Tube that carries urine from the bladder out of the body |
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| Liquid waste made as the kidneys filter the blood; contains the waste molecule urea |
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| Small cluster of capillaries in the nephron inside the Bowman's capsule where waste is forced from the blood supply |
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| Rounded, cup shaped end of a tubule that collects filtrate that is forced from the blood in the glomerulus |
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| Long tube in the nephron where useful substances that have been filtered from the blood are reabsorbed back into the blood; filtrate becomes urine here |
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| Tube in the nephron that collects the newly formed urine and directs it to the ureter |
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| Other organs of the excretory system |
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Definition
| Skin - removes some urea, water (sweat), salts; lungs - removes carbon dioxide and some water; kidneys |
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Definition
| Constant internal conditions - this system helps maintain the cleanliness of the blood, maintain constant water level in the body, helps maintain constant blood pH |
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