Urine Formation: Factors Affecting Glomerular Filtration and Tubular Reabsorption
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Questions and Answers

What is the main factor that determines the filtration pressure in the process of glomerular filtration?

  • Blood pressure (correct)
  • Rate of filtration
  • Amount of blood in the body
  • Constriction of efferent arterioles
  • Which of the following hormones plays a significant role in increasing water reabsorption in the tubular reabsorption process?

  • Thyroxine
  • Insulin
  • Glucagon
  • Antidiuretic hormone (ADH) (correct)
  • What substances are mainly found in the composition of urine?

  • Glucose and amino acids
  • Hemoglobin and lipids
  • Vitamins and minerals
  • Urea and uric acid (correct)
  • In the process of tubular secretion, substances move from __________.

    <p>Blood in peritubular capillaries to renal tubules</p> Signup and view all the answers

    Which of the following processes helps in maintaining the acid-base balance through the secretion of waste products?

    <p>Tubular secretion</p> Signup and view all the answers

    How does the sympathetic nervous system control affect the rate of filtration in urine formation?

    <p>Increases the constriction of afferent arterioles</p> Signup and view all the answers

    What is the main function of the ureters in the urinary system?

    <p>Transport urine from each kidney to the bladder</p> Signup and view all the answers

    During urine formation, what process moves urine down each ureter into the bladder?

    <p>Peristalsis</p> Signup and view all the answers

    Which type of muscle is mainly found in the wall of the bladder?

    <p>Smooth muscle</p> Signup and view all the answers

    What triggers the process of urination in the bladder?

    <p>Stretching of the bladder</p> Signup and view all the answers

    Which part of the nervous system stimulates the detrusor muscle during urination?

    <p>Parasympathetic nerves</p> Signup and view all the answers

    What happens to the external urethral sphincter during the micturition reflex?

    <p>Relaxes</p> Signup and view all the answers

    Which process involves the movement of substances from the blood into the renal tubules?

    <p>Tubular secretion</p> Signup and view all the answers

    What is the primary function of the nephrons in the kidneys?

    <p>Glomerular filtration</p> Signup and view all the answers

    Which condition is characterized by the progressive loss of renal function and may lead to uremia?

    <p>Chronic Renal Failure (CRF)</p> Signup and view all the answers

    What is the term used to describe the tube that moves urine from the bladder to the outside world?

    <p>Urethra</p> Signup and view all the answers

    In kidney failure, what happens when too many nephrons are destroyed?

    <p>Kidney failure</p> Signup and view all the answers

    Which action should a patient take to help prevent urinary tract infections?

    <p>Urinate after intercourse</p> Signup and view all the answers

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