Urinary System - Basic

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Urinary System - Basic - Quiz

Are you knowledgeable about the urinary system, and do you think you can pass this quiz? Urine is produced in the kidneys through filtration of blood. The urine is then circulated through the ureters to the bladder, where it is stored. During urination, the urine travels to the bladder. Then, the urine is passed from the bladder through the urethra to the outside of the body. If you want to learn more, take this quiz.


Questions and Answers
  • 1. 

    Which of the following does the urinary system not perform

    • A.

      Regulates Blood Pressure

    • B.

      Regulate pH

    • C.

      Stimulate RBC production in bone marrow

    • D.

      Maintain heart beat

    • E.

      Produce,transport,strore & excrete urine

    Correct Answer
    D. Maintain heart beat
    Explanation
    The urinary system is responsible for the production, transportation, storage, and excretion of urine. It plays a vital role in regulating blood pressure by controlling the amount of water and salt in the body. It also helps in regulating pH levels by controlling the excretion of acids and bases. However, maintaining heart beat is not a function of the urinary system. The heart beat is controlled by the cardiovascular system, specifically the heart and the electrical impulses that regulate its rhythm.

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  • 2. 

    What enzyme does the kidneys release that controls the excretion and rentention of water from the body

    • A.

      Erythropoietin

    • B.

      Renin

    • C.

      Both

    • D.

      Neither

    Correct Answer
    B. Renin
    Explanation
    Renin is the correct answer because it is an enzyme released by the kidneys that plays a crucial role in controlling the excretion and retention of water from the body. Renin helps regulate blood pressure and fluid balance by initiating a cascade of reactions that ultimately leads to the release of aldosterone, a hormone that promotes water and salt retention in the kidneys. This process helps maintain proper hydration levels in the body. Erythropoietin, on the other hand, is an enzyme released by the kidneys that stimulates the production of red blood cells. Therefore, the correct answer is Renin.

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  • 3. 

    The kidneys participate in the activation of which vitamin

    • A.

      A

    • B.

      C

    • C.

      D

    • D.

      E

    • E.

      B1

    Correct Answer
    C. D
    Explanation
    The kidneys participate in the activation of vitamin D. Vitamin D is a fat-soluble vitamin that plays a crucial role in calcium absorption and bone health. The inactive form of vitamin D is converted into its active form by enzymes in the kidneys. This active form of vitamin D helps in the absorption of calcium and phosphorus from the intestines, regulates calcium levels in the blood, and promotes bone mineralization. Therefore, the correct answer is D.

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  • 4. 

    The kidneys synthesis glucose from

    • A.

      Fatty Acids

    • B.

      Carbohydrates

    • C.

      Amino acids

    Correct Answer
    C. Amino acids
    Explanation
    The correct answer is amino acids. The kidneys have the ability to convert amino acids into glucose through a process called gluconeogenesis. This is especially important during periods of fasting or low carbohydrate intake when the body needs a steady supply of glucose for energy. The kidneys play a crucial role in maintaining blood glucose levels by synthesizing glucose from amino acids.

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  • 5. 

    The deepest layer of tissue that surrounds the kidney is known as

    • A.

      Renal fascia

    • B.

      Adipose capsule

    • C.

      Renal capsule

    Correct Answer
    C. Renal capsule
    Explanation
    The correct answer is renal capsule. The renal capsule is the deepest layer of tissue that surrounds the kidney. It is a tough fibrous layer that provides protection and support to the kidney. The renal capsule helps maintain the shape and structure of the kidney and also prevents the spread of infection or inflammation to other organs.

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  • 6. 

    Which is the superficial or outer layer of the kidney

    • A.

      Renal Medulla

    • B.

      Renal cortex

    Correct Answer
    B. Renal cortex
    Explanation
    The renal cortex is the correct answer because it is the outer layer of the kidney. It contains the glomeruli, which are responsible for filtering the blood, and the proximal and distal convoluted tubules, which are involved in reabsorption and secretion. The renal cortex also houses the renal columns, which are extensions of the cortex that project into the medulla. Therefore, the renal cortex is the superficial or outer layer of the kidney.

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  • 7. 

    The renal pyraminds are in which area

    • A.

      Renal Medulla

    • B.

      Renal cortex

    Correct Answer
    A. Renal Medulla
    Explanation
    The renal pyramids are located in the renal medulla. The renal medulla is the innermost part of the kidney, consisting of a series of triangular-shaped structures called the renal pyramids. These pyramids contain the nephrons, the functional units of the kidney, which help in the filtration and reabsorption of waste materials and water. The renal cortex, on the other hand, is the outer layer of the kidney and contains the glomeruli, which are responsible for the initial filtration of blood. Therefore, the correct answer is Renal Medulla.

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  • 8. 

    The fuctional units of the kidneys are

    • A.

      Glomerulus

    • B.

      Loops of henle

    • C.

      Nephrons

    Correct Answer
    C. Nephrons
    Explanation
    The correct answer is nephrons. Nephrons are the functional units of the kidneys. They are responsible for filtering the blood, reabsorbing essential substances, and excreting waste products in the form of urine. Each kidney contains millions of nephrons, which consist of a glomerulus and a tubule. The glomerulus filters the blood, while the tubule reabsorbs water, electrolytes, and other substances back into the bloodstream. The remaining waste is then excreted as urine. The loops of Henle are a part of the nephron, responsible for concentrating the urine and maintaining water balance in the body.

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  • 9. 

    The nephron receives blood from

    • A.

      Efferent arteriole

    • B.

      Afferent arteriole

    • C.

      Glomerulus

    Correct Answer
    B. Afferent arteriole
    Explanation
    The nephron receives blood from the afferent arteriole. The afferent arteriole is a small blood vessel that brings blood into the glomerulus, which is the filtration unit of the nephron. The glomerulus filters waste products and excess water from the blood to form urine. After filtration, the blood leaves the glomerulus through the efferent arteriole, which then branches out into the capillaries surrounding the nephron. Therefore, the afferent arteriole is responsible for delivering blood to the nephron for filtration.

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  • 10. 

    The ball shape capillary network that the afferent arteriole flows into is called the

    • A.

      Loop of henle

    • B.

      Efferent arteriole

    • C.

      Glomerulus

    • D.

      Proximal convoluted tubule

    Correct Answer
    C. Glomerulus
    Explanation
    The ball-shaped capillary network that the afferent arteriole flows into is called the glomerulus.

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  • 11. 

    The nephron consists of which two parts the renal corpuscle and the renal tubule which of these parts is where the blood plasma is filtered

    • A.

      Renal corpuscle

    • B.

      Renal tubule

    Correct Answer
    A. Renal corpuscle
    Explanation
    The correct answer is the renal corpuscle. The renal corpuscle is the part of the nephron where the blood plasma is filtered. It consists of the glomerulus and the glomerular capsule. The glomerulus is a network of capillaries that allows for the filtration of waste products, excess water, and other substances from the blood. The glomerular capsule surrounds the glomerulus and collects the filtered fluid, which then enters the renal tubule for further processing.

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  • 12. 

    The glomerulus is in which part of the nephron

    • A.

      Renal corpuscle

    • B.

      Renal tubule

    Correct Answer
    A. Renal corpuscle
    Explanation
    The glomerulus is located in the renal corpuscle. The renal corpuscle is the initial part of the nephron, which is responsible for filtering blood and forming urine. It consists of the glomerulus, a network of capillaries, and the Bowman's capsule, which surrounds the glomerulus. Together, they play a crucial role in the filtration process of the kidneys. The renal tubule, on the other hand, is the second part of the nephron, where reabsorption and secretion of substances occur.

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  • 13. 

    The loop of Henle is in which part of the nephron

    • A.

      Renal corpuscle

    • B.

      Renal tubule

    Correct Answer
    B. Renal tubule
    Explanation
    The loop of Henle is located in the renal tubule. The renal tubule is a long, coiled structure that follows the renal corpuscle in the nephron. It consists of several segments, including the proximal convoluted tubule, the loop of Henle, and the distal convoluted tubule. The loop of Henle is a U-shaped portion of the renal tubule that plays a crucial role in the reabsorption and concentration of urine. It is responsible for creating a concentration gradient in the medulla of the kidney, which is essential for water reabsorption and the regulation of urine volume and concentration.

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  • 14. 

    Is the loop of henle is the renal cortex or the renal medulla

    • A.

      Renal cortex

    • B.

      Renal medulla

    • C.

      Both

    Correct Answer
    C. Both
    Explanation
    The loop of Henle is located in both the renal cortex and the renal medulla. It starts in the cortex, descends into the medulla, and then ascends back into the cortex. This loop plays a crucial role in the concentration of urine and the reabsorption of water and solutes in the kidneys.

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  • 15. 

    The capsule that surrounds glomerulus is called the glomerular capsule.  It is also called the

    • A.

      Batmans capsule

    • B.

      Bowmans capsule

    • C.

      Distal capsule

    Correct Answer
    B. Bowmans capsule
    Explanation
    The capsule that surrounds the glomerulus is called Bowman's capsule. It is named after Sir William Bowman, an English physician who first described it in the mid-19th century. This capsule is a cup-shaped structure located at the beginning of the nephron in the kidney. It plays a crucial role in the filtration of blood and the formation of urine. The glomerular capsule collects the filtrate from the glomerulus and allows it to pass into the renal tubule for further processing.

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  • 16. 

    The Glomerular capsule (bowmans) consists of which two layers

    • A.

      Visceral

    • B.

      Parietal

    • C.

      Renal

    • D.

      A & B

    Correct Answer
    D. A & B
    Explanation
    The Glomerular capsule (Bowman's capsule) consists of two layers: visceral and parietal. The visceral layer is in direct contact with the glomerulus and is made up of specialized cells called podocytes. The parietal layer is the outer layer of the capsule and is composed of simple squamous epithelium. Both layers play important roles in the filtration process of the kidneys.

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  • 17. 

    The visceral layer consists of modified simple squamous epithelial cells called

    • A.

      Podocytes

    • B.

      Pedecytes

    • C.

      Pidlecytes

    Correct Answer
    A. Podocytes
    Explanation
    These cells form the inner wall of the capsule and have foot like projections that wrap around the single layer of cells that form the walls of the flomerular capillaries

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  • 18. 

    Between these two layers visceral and pariental is a fluid filled space called the _______ space

    • A.

      Filtration space

    • B.

      Gomerular space

    • C.

      Capsular space

    Correct Answer
    C. Capsular space
    Explanation
    The correct answer is "Capsular space." This is the space between the visceral and parietal layers of a membrane, which is filled with fluid. It is called the capsular space because it is located within a capsule-like structure.

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  • 19. 

    The filtration membrane does what

    • A.

      Allows substances such as water and small solutes to move across into capsular space

    • B.

      Stops larger substances from passing across capsular space such as porteins, blood cells and platelets

    • C.

      Both A & C

    • D.

      Neither

    Correct Answer
    C. Both A & C
    Explanation
    The filtration membrane in the kidneys allows substances such as water and small solutes to move across into the capsular space. This is important for the filtration process in the kidneys, as it allows waste products and excess substances to be removed from the blood. Additionally, the filtration membrane also stops larger substances from passing across the capsular space, such as proteins, blood cells, and platelets. Therefore, the correct answer is Both A & C.

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  • Current Version
  • Mar 20, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Oct 27, 2009
    Quiz Created by
    Jmstyles
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