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Function of the kidneys in blood pressure control

Evaluation: Blood Pressure Control

Sometimes during traumatic injury, the kidneys must take action to regulate blood pressure in order for the individual to survive. When would this action necessary?

Explain in detail how the kidneys regulate blood pressure.

Some people have high blood pressure. How do the drugs (called diuretics) taken for high blood pressure, affect the kidneys?

Solution Preview

Sometimes during traumatic injury, the kidneys must take action to regulate blood pressure in order for the individual to survive. When would this action necessary?

The actions taken by the kidney to regulate blood pressure are especially important during traumatic injury, when they are necessary to maintain blood pressure and conserve the loss of fluids.

Explain in detail how the kidneys regulate blood pressure.

The kidney influences blood pressure by:
?Causing the arteries and veins to constrict.
?Increasing the circulating blood volume.

How the Kidney Causes Blood Vessels to Constrict

Specialized cells are located in a portion of the distal tubule located near and in the wall of the afferent arteriole.
The distal tubule cells (macula densa) sense the Na in the filtrate, and the arterial cells (juxtaglomerular cells) sense the blood pressure.
When the blood pressure drops, the amount of ...

Solution Summary

This solution provides the function kidneys play in the regulation and control of blood pressure. It then explains how the drugs (called diuretics) taken for high blood pressure, affect the kidneys.

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