Understanding the Glomerulus and Urine Composition
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Questions and Answers

What is the term for the absence of urine production?

  • Polyuria
  • Oliguria
  • Anuria (correct)
  • Diuresis

What does the presence of leukocytes in the urine indicate?

  • Diabetes
  • Osteomalacia
  • Urinary tract infection (correct)
  • Kidney stones

What is the function of the glomerulus in the nephron?

  • Filtration (correct)
  • Secretion
  • Absorption
  • Excretion

Which food group tends to lower urine pH?

<p>Meats (D)</p> Signup and view all the answers

What does the presence of ketones in urine indicate?

<p>Fat being used for energy (C)</p> Signup and view all the answers

What does polyuria refer to?

<p>Overproduction of urine (A)</p> Signup and view all the answers

What is the active form of vitamin D that regulates calcium in the blood?

<p>Calcitriol (B)</p> Signup and view all the answers

Which hormone is primarily responsible for increasing erythrocyte production when oxygen concentration is low?

<p>Erythropoietin (EPO) (C)</p> Signup and view all the answers

What could inadequate vitamin D levels potentially lead to?

<p>Osteoporosis (B)</p> Signup and view all the answers

Which of the following hormones does not play a role in regulating blood pressure through the kidneys?

<p>Erythropoietin (EPO) (B)</p> Signup and view all the answers

How do the kidneys help maintain the body's blood pH level?

<p>By recovering electrolytes like sodium, potassium, and calcium (C)</p> Signup and view all the answers

What is the function of the Loop of Henle in the nephron?

<p>Reabsorb water and some sodium (D)</p> Signup and view all the answers

What role does urea play in the nephron?

<p>Rids the body of nitrogen (B)</p> Signup and view all the answers

Which hormone increases the number of sodium pumps in the DCT?

<p>Parathyroid hormone (A)</p> Signup and view all the answers

What is the final area in the kidney to adjust water balance and osmolarity?

<p>Collecting ducts (B)</p> Signup and view all the answers

How does anti-diuretic hormone (ADH) affect water reabsorption in the kidneys?

<p>Stimulates water reabsorption (A)</p> Signup and view all the answers

What is the role of norepinephrine in kidney function?

<p>Causes vasoconstriction (D)</p> Signup and view all the answers

How do baroreceptors help regulate blood pressure?

<p>Respond to changes in blood pressure with sympathetic or parasympathetic responses (B)</p> Signup and view all the answers

What is the function of endothelins in kidney physiology?

<p>Promote vasoconstriction (A)</p> Signup and view all the answers

Which substance increases water content in urine for a person with uncontrolled diabetes?

<p>Glucose (D)</p> Signup and view all the answers

What is the main function of aldosterone in kidney regulation?

<p>Promote sodium reabsorption (A)</p> Signup and view all the answers

What is the medical term for urination?

<p>Micturition (B)</p> Signup and view all the answers

Which part of the nephron has many microvilli to absorb and secrete solutes?

<p>Proximal convoluted tubule (PCT) (B)</p> Signup and view all the answers

What is the Glomerular Filtration Rate (GFR) a measure of?

<p>Filtrate production per minute (B)</p> Signup and view all the answers

What causes aquaporin channel proteins to pull water back into interstitial spaces for reabsorption?

<p>ADH (A)</p> Signup and view all the answers

What happens if osmolarity is high in the body?

<p>Cells contract to form less urine (D)</p> Signup and view all the answers

Where does most water reabsorption occur along the nephron?

<p>Proximal convoluted tubule (PCT) (C)</p> Signup and view all the answers

What is the main function of nephrons in the kidney?

<p>Produce urine (D)</p> Signup and view all the answers

Which part of the kidney is responsible for regulating renin release and influencing blood volume?

<p>Macula densa (D)</p> Signup and view all the answers

What causes smooth muscle contraction if blood pressure increases?

<p>Low blood pressure (C)</p> Signup and view all the answers

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