Excretory System Quiz
20 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the primary function of the liver in the excretory system?

  • To transport waste from the kidneys to the bladder
  • To store urine until it is eliminated from the body
  • To filter blood and remove waste
  • To convert ammonia into urea (correct)
  • Which process involves the removal of an amino group from an amino acid?

  • Transamination
  • Decarboxylation
  • Hydrolysis
  • Deamination (correct)
  • What waste product is primarily removed by the kidneys and can precipitate out to form crystals in joints?

  • Urea
  • Uric acid (correct)
  • Creatinine
  • Ammonia
  • What is one of the functions of the kidneys?

    <p>To maintain water balance in the body (A)</p> Signup and view all the answers

    Which organ is responsible for filtering blood and removing waste?

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

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

    <p>To transport urine from kidneys to bladder (C)</p> Signup and view all the answers

    Which part of the nephron is primarily involved in the filtration of blood?

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

    Which substance is primarily reabsorbed during the nephron's reabsorption process?

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

    What is the role of Antidiuretic Hormone (ADH) in the urinary system?

    <p>Increases the permeability of the collecting duct to water (B)</p> Signup and view all the answers

    Which layer of the kidney contains the majority of the nephron?

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

    Which part of the nephron is primarily responsible for the filtration of blood?

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

    What role does Antidiuretic Hormone (ADH) play in the kidneys?

    <p>It increases the permeability of the collecting duct to water (C)</p> Signup and view all the answers

    Which kidney disorder is characterized by excessive urine production due to insufficient levels of ADH?

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

    What function is performed by the distal tubule during nephron activity?

    <p>Secretion of excess wastes (D)</p> Signup and view all the answers

    Which hormone primarily regulates sodium ion reabsorption in the kidney?

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

    Which hormone increases the permeability of the collecting duct to water?

    <p>Antidiuretic Hormone (ADH) (B)</p> Signup and view all the answers

    What is the primary function of reabsorption in the nephron?

    <p>To return useful substances to the blood (B)</p> Signup and view all the answers

    Which of the following conditions results from insufficient production of ADH?

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

    What treatment involves replacing a damaged kidney with a healthy one?

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

    Which of the following is NOT a typical symptom of Bright's Disease (Nephritis)?

    <p>High blood sugar levels (A)</p> Signup and view all the answers

    Flashcards

    Excretory system

    The system responsible for removing waste and excess substances from the body.

    Liver

    The primary organ responsible for removing ammonia from the body, turning it into urea.

    Urea

    A toxic waste product that is converted from ammonia by the liver, and eventually excreted by the kidneys.

    Uric acid

    A waste product that, when built up in the body, can cause pain in the joints. Excreted by the kidneys.

    Signup and view all the flashcards

    Kidneys

    The organs that filter blood, produce urine, and regulate water balance in the body.

    Signup and view all the flashcards

    Nephron

    The functional unit of the kidney, responsible for filtering blood and producing urine.

    Signup and view all the flashcards

    Cortex

    The outer layer of the kidney, containing the glomerulus and Bowman's capsule.

    Signup and view all the flashcards

    Medulla

    The inner layer of the kidney, containing the loop of Henle and collecting duct.

    Signup and view all the flashcards

    Filtration

    The process where blood enters the glomerulus and is filtered into the Bowman's capsule.

    Signup and view all the flashcards

    Antidiuretic Hormone (ADH)

    The process of regulating water balance by adjusting the permeability of the collecting duct.

    Signup and view all the flashcards

    Urine formation

    The process of removing waste products from the blood and forming urine. It involves three main steps: filtration, reabsorption, and secretion.

    Signup and view all the flashcards

    Aldosterone

    A hormone produced by the adrenal glands that regulates sodium reabsorption in the distal tubule and collecting duct, thereby controlling blood pressure and volume.

    Signup and view all the flashcards

    Bright's disease (nephritis)

    A condition where the nephrons become inflamed, leading to blood in the urine and excessive urine production.

    Signup and view all the flashcards

    What happens during filtration in the nephron?

    Blood enters the glomerulus in the nephron, and small molecules like water, glucose, and waste pass through the filter into Bowman's capsule. Larger molecules, like proteins, are retained in the blood.

    Signup and view all the flashcards

    What is reabsorption in the nephron?

    As filtered fluid moves through the renal tubules, useful substances (glucose, salts, amino acids) are reabsorbed back into the bloodstream. This is a vital process to maintain blood solute balance.

    Signup and view all the flashcards

    What is secretion in the nephron?

    Waste products that are not filtered in the glomerulus, or that are actively transported from the blood, are secreted into the nephron's distal tubule. This includes excess drugs and ammonia.

    Signup and view all the flashcards

    What is the role of the collecting duct?

    The collecting duct controls urine concentration by adjusting water reabsorption. This is influenced by hormones like ADH.

    Signup and view all the flashcards

    What does ADH (antidiuretic hormone) do?

    This hormone increases water permeability in the collecting duct. This means more water can be reabsorbed, leading to more concentrated urine.

    Signup and view all the flashcards

    More Like This

    Use Quizgecko on...
    Browser
    Browser