Project #74449 - Human Physiology

 

  1. What are the two types of nephrons? What is the function of each?
  2. How is blood flow to and from the glomerulus unique?
  3. What is the order of filtrate flow through the nephron?
  4. How is the glomerulus designed to allow filtration of only small substances from the blood (the three layers)?  What substances should not be in the filtrate because they are too large?
  5. What are the inward and outward pressures that affect filtration? What is the net filtration pressure (inward or outward)? How does the GFR change with constriction and/or dilation of the afferent and efferent arteriole?
  6. What is tubular reabsorption? Which part of the nephron is most active in reabsorption?
  7. What is tubular secretion? Which part of the nephron is most active in secretion?
  8. What mechanisms are used for the reabsorption of Na+ and K+ across the three membranes in the PCT?
  9. What effect do atrial natriuretic protein, aldosterone, ADH, and parathyroid hormone have on reabsorption/secretion? How is aldosterone released? How do sympathetic innervation, intrarenal baroreceptors, and macula densa regulate renin release?
  10. Explain how water is reabsorbed independent of Na+ in the presence of ADH.
  11. How does PCO2 and H+ levels change during respiratory acidosis and alkalosis? How does HCO3- concentration change during metabolic acidosis and alkalosis? Be sure you if given normal ranges for PCO2, HCO3-, and pH, you can determine what is the primary cause of a pH problem and if it is being compensated.

 

 

 

 

 

Subject Medicine
Due By (Pacific Time) 06/20/2015 12:00 am
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