week 7, 8, 9

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  1. Which of the following statements are incorrect.
    a. Aldosterone primarily acts on the efferent arteriole.
    b. GFR is largely controlled by constriction of the collecting ducts.
    c. The efferent arteriole supplies oxygenated blood to the glomerulus. 
    d. the ureters connect the bladder to the urethra.
    e. all of the above.
    e
  2. Which of the following statements is correct.Select one:
    a. The ureters plays an important role in filtration and reabsorption.
    b. Vasopressin is released from the kidneys.
    c. Secretion occurs primarily in the Bowman’s Capsule.
    d. The collecting ducts are important sites for filtration of water.
    e. None of the following are correct.
    e
  3. An increase in aldosterone secretion would normally act toSelect one:
    a. increase renin secretion in the lungs.
    b. decrease Na+ reabsorption, leading to a decrease in arterial blood pressure.
    c. increase Na+ reabsorption, leading to an increase in arterial blood pressure. 
    d. increase K+ absorption in the ureters.
    e. increase heart rate and and usually increase K+ secretion in the proximal convoluted tubule.
    c
  4. A fisherman has had no water for 2 days. What would you expect to find in the blood stream of the fisherman?Select one:
    a. Low levels of renin and high vasopressin.
    b. High levels of renin but low vasopressin.
    c. High levels of renin and low aldosterone.
    d. Low levels of Renin and low aldosterone.
    e. High levels of Renin and high vasopressin
    e
  5. A man consumed a large volume (2 litres) of water over a 1 hour period. Which of the following would you expect to occur soon after drinking the waterSelect one:
    a. increased renin release.
    b. no change aldosterone release.
    c. increased vasopressin release.
    d. reduced vasopressin release. 
    e. A and B are correct.
    d
  6. A patient has a sudden loss of plasma Na+ concentration due to blood loss following a boating accident. Which of the following would you expect to occur in that patient soon after the blood loss to compensate for the low Na+ levels ?Select one:
    a. Increased renin and aldosterone secretion. 
    b. Increased secretion of Na+ into the proximal tubule.
    c. Decreased renin and aldosterone secretion.
    d. Increased vasopressin release from the lungs.
    e. Both B & C are correct.
    a
  7. Hypophysiotropic hormones refer toSelect one:
    a. hormones synthesized by the hypothalamus that are released specifically into the hypothalamic-hypophyseal portal system.
    b. hormones released from the hypothalamus that either increase or decrease the release of other hormones in the anterior pituitary.
    c. are produced in neurons of the hypothalamus.
    d. enter the hypothalamic capillaries that lead to the anterior pituitary.
    e. all of the above are correct
    e
  8. Follicle Stimulating Hormone (FSH) stimulates:Select one:
    a. Hair follicle growth
    b. Ova and sperm production 
    c. Sex hormone secretion
    d. Anterior pituitary
    e. Hypothalamus
    b
  9. The enzyme adenylyl cyclase is responsible for the conversion ofSelect one:
    a. fats into proteins.
    b. ATP into cyclic AMP. 
    c. ADP into ATP.
    d. both A and B.
    e. none of the above.
    b
  10. Which of the following hormones is secreted by the posterior pituitary?Select one:
    a. Oxytocin
    b. Thyroid stimulating hormone (TSH).
    c. Vasopressin
    d. A and C 
    e. None of the above
    d
  11. Which of the following is characteristic of lipophilic hormones?Select one:
    a. They cross the plasma membrane to cause changes in mRNA and protein synthesis.
    b. They act on plasma membrane receptors to increase uptake of other hormones.
    c. They act only on neuronal membranes.
    d. A and B are correct. 
    e. none of the above
    a
  12. Hypophysiotropic hormones from the hypothalamusSelect one:
    a. control the release of hormones from the posterior pituitary.
    b. travel via nerve axons from the hypothalamus to the kidney.
    c. are carried in the hypothalamo-hypophyseal portal system. 
    d. always act to stimulate, but not inhibit the release of anterior pituitary hormones.
    e. none of the above
    c
  13. One of the major roles of lung macrophages is to:Select one:
    a. recycle pulmonary surfactant.
    b. to stimulate mucus secretion.
    c. to stimulate the beating of cilia in the conducting region.
    d. to clear debris from the alveolus.
     e. all of the above are true
    d
  14. In restrictive lung diseases you would typically find:Select one:
    a. a lower total lung capacity and a lower vital capacity 
    b. a lower total lung capacity and a lower residual volume
    c. a larger total lung capacity and larger residual volume
    d. a larger total lung capacity and a lower residual volume
    e. a lower total lung capacity and a larger vital capacity
    a
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321460
Card Set
week 7, 8, 9
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physiology
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