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Functions of Kidneys - lecutre

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Questions and Answers

Which of the following ions are regulated by the kidneys in the blood?

Mg2+ and Ca2+

Na+ and Cl- (correct)

Fe2+ and Cu2+

Zn2+ and Mn2+

How do the kidneys regulate blood volume?

By increasing blood flow

By decreasing blood flow

By conserving water in urine (correct)

By eliminating water in urine

What is the role of the kidneys in regulating blood pH?

Excreting H+ and conserving HCO3- (correct)

Excreting HCO3- and conserving H+

Excreting Na+ and conserving Cl-

Excreting Cl- and conserving Na+

Which hormone is secreted by the kidneys to help regulate blood pressure?

Renin Signup and view all the answers

What is the normal blood osmolarity maintained by the kidneys?

300 mOsm/liter Signup and view all the answers

Which hormones are produced by the kidneys?

Calcitriol and erythropoietin Signup and view all the answers

What are some of the wastes excreted by the kidneys in urine?

Ammonia and urea Signup and view all the answers

What foreign substances are excreted by the kidneys in urine?

Drugs and environmental toxins Signup and view all the answers

How do the kidneys help maintain homeostasis in the body?

All of the above Signup and view all the answers

Which of the following is not regulated by the kidneys?

Blood glucose levels Signup and view all the answers

What is the main function of the hormone erythropoietin produced by the kidneys?

Stimulating red blood cell production Signup and view all the answers

Which of the following is not a function of the kidneys?

Digesting food Signup and view all the answers

Study Notes

Kidneys regulate blood ionic composition (Na+, K+, Ca2+, Cl-, HPO42-)
Kidneys regulate blood volume by conserving or eliminating water in urine
Kidneys regulate blood pH by excreting H+ and conserving HCO3-
Kidneys help regulate blood pressure by secreting renin
Kidneys maintain blood osmolarity close to 300 mOsm/liter
Kidneys produce hormones calcitriol and erythropoietin
Kidneys excrete wastes and foreign substances in urine
Wastes include ammonia, urea, and bilirubin
Foreign substances include drugs and environmental toxins
Kidneys play a vital role in maintaining homeostasis in the body.

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Description

Test your knowledge on the vital role of kidneys in maintaining homeostasis in the body! This quiz covers various functions of the kidneys, including regulation of blood ionic composition, pH, volume, and pressure, as well as production of hormones and elimination of wastes and foreign substances. Sharpen your understanding of the intricacies of kidney function with this informative quiz.