Urinary System Functioning and Urinalysis Quiz

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Questions and Answers

What is the term for the absence of urine production?

  • Diuresis
  • Polyuria
  • Oliguria
  • Anuria (correct)

What does the presence of leukocytes in the urine indicate?

  • Dehydration
  • Urinary tract infection (correct)
  • Normal condition
  • High protein intake

What does the specific gravity of urine measure?

  • Amount of solutes (correct)
  • Color of urine
  • Temperature of urine
  • Volume of urine produced

What can ketones in the urine indicate?

<p>Body using fat for energy (C)</p> Signup and view all the answers

What does an overproduction of urine refer to?

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

What is the function of the urethra?

<p>Transport urine from bladder outside the body (A)</p> Signup and view all the answers

What is the active form of vitamin D?

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

Which hormone is primarily responsible for increasing erythrocyte production?

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

What process ensures the recovery of electrolytes such as sodium and potassium by the kidneys?

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

What is the main reason why vitamin D is sometimes referred to as a hormone instead of a vitamin?

<p>Its role in regulating calcium (A)</p> Signup and view all the answers

Which of the following is NOT involved in regulating blood pressure?

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

What is the medical term for urination?

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

What is the function of aquaporin channel proteins?

<p>Pull water out of the interstitial spaces (D)</p> Signup and view all the answers

Which structure regulates renin release to influence blood volume?

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

What happens if osmolarity is high in the nephrons?

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

What is the primary function of nephrons in the kidneys?

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

What is the approximate capacity of the bladder?

<p>~600 mL (C)</p> Signup and view all the answers

Which structure is responsible for absorbing and secreting solutes in the nephrons?

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

What is the primary method by which filtrate enters Bowman's Capsule?

<p>Filtration Slits (C)</p> Signup and view all the answers

Which structure is responsible for releasing ATP and adenosine in response to flow rate or sodium disturbances?

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

What occurs if blood pressure falls below a mean arterial pressure of 60 mm Hg?

<p>Impaired renal function and potential shock (B)</p> Signup and view all the answers

What is the role of Urea in the Loop of Henle?

<p>Rid the body of nitrogen (D)</p> Signup and view all the answers

Which hormone increases the number of sodium pumps in the DCT (Distal Convoluted Tubule)?

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

What is the function of ADH (Anti-diuretic hormone) in the collecting ducts?

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

What is the function of natriuretic hormones in the kidney?

<p>Inhibit aldosterone and allow sodium excretion (D)</p> Signup and view all the answers

What effect do diuretics have on urine volume?

<p>Increase urine volume (B)</p> Signup and view all the answers

How do the kidneys regulate acids and bases compared to the lungs?

<p>Lungs are faster (B)</p> Signup and view all the answers

Which substance increases water in the urine if present, especially in uncontrolled diabetes?

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

What happens when blood pressure drops in relation to renin production?

<p>Promotes aldosterone release (D)</p> Signup and view all the answers

What is the main effect of Endothelins in the kidneys?

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

What is the effect of progesterone on water retention in women?

<p>It increases water retention (B)</p> Signup and view all the answers

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