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When the body uses food for energy, carbon dioxide, water, and heat are produced as waste products. Carbon dioxide and water are given off when you exhale from the ______.
As the body breaks down extra proteins, it forms a waste called urea. Salt is also given off as a waste product. Small amounts of urea and salt are released from the skin when you sweat, but most of it is released from the main organs of excretion in the body, the _______.
The two kidneys are at the back of the body, just above the hips. They form a liquid called ____,which is made up of wastes and water. THE LIQUID EXCRETED BY THE KIDNEYS, STORED IN THE BLADDER, AND PASSED THROUGH THE URETHRA TO THE OUTSIDE OF THE BODY.
Each kidney contains millions of tiny tubes called _____ which have capillaries wrapped around them. These tiny tubes filter and cleanse the blood and balance the supply of water and salt in the body. THE FUNCTIONAL UNIT OF THE KIDNEY.
Water from the blood goes into the nephrons along with urea, salt, and wastes. Urine forms from these waste products inside of the nephrons and then flows to a collecting area in the kidney. The urine leaves each kidney through a tube called the ____.
After leaving the kidney through the ureters, the urine is collected in a sac-like organ called the ____where it is stored until it is ready to be released from the body.
When urine is released from the body, it passes from the bladder through another tube called the , _______which carries it out of the body.
the principal nitogenous product of the metabolism of proteins that forms n the liver from amino acids and from compounds of ammonia and that is found in urine and other body fluids.
Osmotic and pH balance
By removing wastes and toxic chemicals, excretion enables the body to maintain its ______ and ____ _____
2.4 L (2.5 qt)
A healthy person should drink at least _______ of water every day to replace the water lost through excretion.
pair of fist-sized
The kidneys are a ____ ___ ___ ____, beanshapped, reddish brown organs that are located in the lower back.
_____ _______ are removed from the body through the formation and excretion of urine.
1.5 L (1.6 qt) to 2.3 L (2.3 qt)
A healthy adult eliminates from about ________ to ________ of urine a day, depending on the volume of fluids consumed.
The most common causes of _____ _____ are infection, diabetes, high blood pressure, and damage to the kidneys by the body's own immune system.
Kidneys are vital to maintaining ______, so damage to the kidneys may eventually become life threatening.
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