Renal System

    Renal System
    Which one of the statements about the collecting ducts is true? The collecting duct absorbs:
    ADH causes aquaporins (water channels) to be inserted into the collecting duct walls. The collecting duct is impermeable to the other substances.
    Renal System
    Complete the following sentence correctly. Angiotensin II:
    Aldosterone is produced by the adrenal cortex in response to angiotensin II. Angiotensin II also stimulates thirst.
    Renal System
    Through which structure must the filtrate move to enter the Bowman’s capsule from the glomerulus?
    Together these three structures form the filtration membrane
    Renal System
    What part of the nephron performs the majority of the reabsorption of materials from the filtrate?
    The proximal convoluted tubule (the first part or the renal tubule) absorbs most of the required material.
    Renal System
    What is the collective term applied to the proximal and distal convoluted tubules, the loop of Henle (i.e. the nephron loop) and the glomerular capsule?
    The nephron includes the glomerulus, whereas the tubule does not.
    Renal System
    From which part of the nephron is the greatest proportion of Na + absorbed from the filtrate?
    The PCT absorbs about 65% of the sodium from the filtrate.
    Renal System
    Solutes move from the blood in the glomerular capillaries into the Bowman’s capsule due to which of the following influences?
    The efferent (outgoing) arteriole has a smaller diameter than the afferent arteriole; hence, the glomerulus is a high pressure area. This aids the movement of dissolved substances through the filtration membrane.
    Renal System
    Which list has the blood vessels of the nephron in the correct order of blood flow?
    Afferent arteriole bring blood into the glomerulus, and then glomerular capillaries are next.
    Renal System
    What part of the renal tubule is NOT able to reabsorb water?
    The ascending limb is impermeable to water.
    Renal System
    The nephron of the kidney consists of which of the following structures?
    The glomerulus and renal tubule together constitute the nephron.