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Urinary System and Dehydration Quiz

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Questions and Answers

What hormone causes Na+ secretion in diabetic kidney disease?

Natriuretic hormone (correct)
Parathyroid hormone
Aldosterone
Renin

Which hormone increases Ca++ reabsorption and blocks phosphate reabsorption in the kidneys?

Parathyroid hormone (correct)
Natriuretic hormone
Erythropoietin
Aldosterone

Where are the baroreceptors located that check blood pressure?

Kidneys
Pancreas
Liver
Aorta and carotid sinuses (correct)

What is the primary function of renin?

Increases red blood cell production (A) Signup and view all the answers

Which solute must be balanced with water in the blood vessels and interstitial spaces?

Osmolarity (B) Signup and view all the answers

What is the primary function of the kidneys in relation to hydrogen ions?

Balances hydrogen ions for proper pH regulation (D) Signup and view all the answers

What is the main purpose of the kidney?

Maintain homeostatic balance of plasma and excrete potential toxins (C) Signup and view all the answers

What does oliguria indicate?

Dehydration, blood loss, or kidney disease (D) Signup and view all the answers

Where does the reabsorption of sodium occur in the kidney?

Proximal Convoluted Tubule (PCT) (C) Signup and view all the answers

What does the presence of ketones in urine indicate?

Diabetes or high fat diet (D) Signup and view all the answers

How much fluid triggers the micturition reflex?

$150$ mL (A) Signup and view all the answers

What is the function of the macula densa in the kidney?

Regulate renin release (B) Signup and view all the answers

What can cause polyuria?

Diabetes insipidus or excess water consumption (B) Signup and view all the answers