It is important for the body to maintain a constant internal environment, called homeostasis. Water homeostasis, or osmoregulation, is the way the body makes sure that the right level of water is in the body. In this title, we will see how the brain and the kidneys keep water levels balanced. The kidney is the organ responsible for filtering our blood and making sure that the right amounts of salts stay in the body, or are excreted. We will look at the structure of the kidney and understand how filtration takes place, before moving on to seeing how the urinary system works. If the kidneys stop working then urea affects the skin, making it turn yellow. There are two solutions to this: undergoing a kidney transplant or kidney dialysis. We will look at the risks and benefits of each.
|Author:||Dr. Eliot Attridge||Publisher:||GCSEPod®|
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Curriculum and Exam Board Information
- appreciate the advantages and disadvantages of dialysis and kidney transplants
- Body water content and body temperature as examples of homeostasis
- Homeostasis - maintenance of a constant internal environment
- know how these toxic products of metabolism are removed by ultrafiltration from the blood at the kidneys
- recall that the kidney has a role in maintaining the internal environment (homeostasis) in humans limited to osmoregulation
- Structure and function of the urinary system
- Structure and functions of a nephron
- The role of ADH in controlling the water content of blood
- understand that dialysis is a life supporting mechanism using an artificial method of filtration in cases of kidney failure
- Urea - made in liver from excess amino acids
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