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What is the main factor that creates the high osmotic gradient between the cortex and medulla?
Wiki User
∙ 15y ago
A high osmotic gradient between the cortex and the medulla is caused by the running, walking, or jumping of a human person. These simple actions cause the osmotic gradient to rise significantly.
Wiki User
∙ 15y ago
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The mechanism that establishes the medullary osmotic gradient depends most on the permeability properties of the?
loop of Henle
True or false Obligatory water reabsorption involves the movement of water along an osmotic gradient?
false
Which term describes the difference in the concentration of a substance across a cells membrane?
concentration gradient
What is pressure is equal to the tendency of water to enter one solution from another due to a concentration gradient?
Osmotic Pressure
What is osmotic rate?
the change of osmotic pressure over time
The osmotic gradient ____ as it moves deeper into the medulla?
Increases
Where is osmolarity greatest in kidney?
Osmolarity is greatest in the innermost portion of the medulla near the renal pelvis due to the osmotic gradient. As one goes deeper into the renal medulla, the osmotic gradient increase. The osmolarity varies from 300 mOsm at the edge of the medulla to the innermost at approximately 1200-1400 mOsm. Think of the movie, Silence of the Lamb, when Anthony Hopkins eats that kidney, as he eat closer and closer to the kidney, it get salter. The medullary osmotic gradient is used for water reabsorption in the collecting duct, when ADH is present, thus increasing blood volume and result in increasing blood pressure.
Why is it easier to move materials across membranes down a concentration gradient?
osmotic pressure
How does tonicity relate to osmosis?
Tonicity refers to the measure of the effective osmotic pressure gradient between two solutions. The higher the difference in the tonicity between the two solutions, the more osmosis transpires.
The mechanism that establishes the medullary osmotic gradient depends most on the permeability properties of the?
loop of Henle
Which term describes describes the difference in the concentration of a substance across a cells membrane?
This is called the osmotic gradient.
True or false Obligatory water reabsorption involves the movement of water along an osmotic gradient?
false
Is osmotic a diuretic?
Osmotic diuretics are a type of diuretic not a specific drug. Osmotic diuretics work by increasing blood flow to the kidneys and preventing the tubes in the kidneys from making such concentrated urine so that there is no gradient for water to be reabsorbed so you will pee all that water out. An example of an osmotic diuretic is mannitol.
Which term describes the difference in the concentration of a substance across a cells membrane?
concentration gradient
Pressure is equal to the tendency of water to enter one solution from another due to a concentration gradient?
Osmotic Pressure
What acts as a countercurrent exchanger to maintain the osmotic gradient while delivering a nutrient blood supply?
vasa recta
What pressure is equal to the tendency of water to enter one solution from another due to the concentration gradient?
Osmotic Pressure
