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What is the name of the cells in the nephron that respond to ADH and aldosterone?

The cells in the nephron that respond to ADH are called principal cells, while the cells that respond to aldosterone are called intercalated cells. These cells play a crucial role in regulating the reabsorption of water and electrolytes in the kidneys.


What renal-adjusting hormone cannot be stored within the cells where it is synthesized?

aldosterone


What drug blocks the effects of aldosterone?

Caffeine binds to aldosterone sites and thus causes an increase of aldosterone in the blood. This increase causes sodium re-absorption and potassium excretion. Sodium excites nerves as potassium relaxes them. This is why one looses their nerve with too much caffeine.


Excess blood potassium hyperkalemia is removed by increasing secretion of the hormone which stimulates an increase in the secretion of potassium by cells within the?

Excess blood potassium (hyperkalemia) is typically removed by increasing the secretion of aldosterone. Aldosterone stimulates the kidneys to increase the secretion of potassium by cells within the kidney nephrons, promoting the excretion of excessive potassium from the body through urine.


How can steroids cause hypokalemia?

Corticosteroids have some agonistic effects on Mineralocorticoids (aldosterone) thus dumping potassium and absorbing sodium.


What is the purpose of aldosterone?

The major target of aldosterone is the distal tubule of the kidney, where it stimulates exchange of sodium and potassium. Three primary physiologic effects of aldosterone result:Increased resorption of sodium: sodium loss in urine is decreased under aldosterone stimulation.Increased resorption of water, with consequent expansion of extracellular fluid volume. This is an osmotic effect directly related to increased resorption of sodium.Increased renal excretion of potassium.Knowing these effects should quickly suggest the cellular mechanism of action this hormone. Aldosterone stimulates transcription of the gene encoding the sodium-potassium ATPase, leading to increased numbers of "sodium pumps" in the basolateral membranes of tubular epithelial cells. Aldosterone also stimulates expression of a sodium channel which facilitates uptake of sodium from the tubular lumen.


Are the effects of aldosterone and adh similar or antagonistic?

the effects are similar. Both hormones are Na+/H2O regulators in the kidneys, they just perform this function in different ways. ADH contros the H2O in our bodies and how much is released while aldosterone is in control of what is reabsorded.


What are the target cells affected by aldosterone?

The target cells of aldosteron are in the distal convulated tubules. Aldosteron there spreads into the cells, makes complexes with the receptors of the nucleus and codes for genes that are responsible for the proteins (e.g. sodium permease) and ferments (citratsintase, carboanhidrase) that are important for the transfer of sodium ions.


What is the primary stimulus for the secretion of aldosterone?

The primary stimulus for the secretion of aldosterone is low blood pressure or low blood volume, which are detected by special cells in the kidneys. The renin-angiotensin-aldosterone system is then activated to increase aldosterone secretion from the adrenal glands, leading to increased reabsorption of sodium and water by the kidneys to help restore blood pressure and volume.


Aldosterone is a steroid hormone and as a result it will bind to a receptor that?

Aldosterone binds to mineralocorticoid receptors, which are located in the cytoplasm of target cells. Upon binding, the aldosterone-receptor complex translocates to the nucleus where it acts as a transcription factor to regulate the expression of specific genes involved in electrolyte balance and blood pressure regulation.


What is the roleof aldosterone?

Aldosterone will cause Na+ to be absorbed from a filtrate


What is the role of aldosterone?

Aldosterone promotes water retention and reduces urine volume