Difference between revisions of "Kidney"
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===About the Kidneys=== | ===About the Kidneys=== | ||
: The [[kidney]]s are responsible for [[osmoregulation]] as well as the removal of [[urea]] from the [[blood]]. | : The [[kidney]]s are responsible for [[osmoregulation]] as well as the removal of [[urea]] from the [[blood]]. | ||
| − | : As [[blood]] passes through the [[kidney]]s [[water]], [[urea]], [[glucose]] and [[salt]]s [[Diffusion|diffuse]] into the kidney tubules. [[Glucose]] is completely reabsorbed into the [[blood]] while [[water]] is selectively reabsorbed depending on the [[water]] [[concentration]] in the [[blood]]. | + | : As [[blood]] passes through the [[kidney]]s [[water]], [[urea]], [[glucose]] and [[salt]]s [[Diffusion|diffuse]] from [[capillaries]] into the kidney tubules at in a structure called a [[nephron]]. [[Glucose]] is completely reabsorbed into the [[blood]] while [[water]] is selectively reabsorbed depending on the [[water]] [[concentration]] in the [[blood]]. |
: The selective re-absorption of [[water]] is affected by [[Anti-diuretic Hormone|anti-diuretic hormone]]. When the levels of [[Anti-diuretic Hormone|anti-diuretic hormone]] are high most of the [[water]] is reabsorbed into the [[blood]]. When the levels of [[Anti-diuretic Hormone|anti-diuretic hormone]] are low the [[water]] is not re-absorbed and is passed down the [[ureter]]s to the [[bladder]]. | : The selective re-absorption of [[water]] is affected by [[Anti-diuretic Hormone|anti-diuretic hormone]]. When the levels of [[Anti-diuretic Hormone|anti-diuretic hormone]] are high most of the [[water]] is reabsorbed into the [[blood]]. When the levels of [[Anti-diuretic Hormone|anti-diuretic hormone]] are low the [[water]] is not re-absorbed and is passed down the [[ureter]]s to the [[bladder]]. | ||
===Extra Information=== | ===Extra Information=== | ||
{{#ev:youtube|https://www.youtube.com/watch?v=9i7kAt97XYU}} | {{#ev:youtube|https://www.youtube.com/watch?v=9i7kAt97XYU}} | ||
Revision as of 19:57, 24 June 2019
Contents
Key Stage 3
A drawing of a kidney.
Meaning
Kidneys are organs in the excretory system that removes urea and excess water from the blood.
About the Kidneys
- The kidneys are linked to the bladder by ureters.
- The kidneys filter the blood to remove some toxic substances.
Key Stage 4
Meaning
Kidneys are organs in the excretory system that removes urea and excess water from the blood.
About the Kidneys
- The kidneys are responsible for osmoregulation as well as the removal of urea from the blood.
- As blood passes through the kidneys water, urea, glucose and salts diffuse from capillaries into the kidney tubules at in a structure called a nephron. Glucose is completely reabsorbed into the blood while water is selectively reabsorbed depending on the water concentration in the blood.
- The selective re-absorption of water is affected by anti-diuretic hormone. When the levels of anti-diuretic hormone are high most of the water is reabsorbed into the blood. When the levels of anti-diuretic hormone are low the water is not re-absorbed and is passed down the ureters to the bladder.