Assignment 14

Answer any three of the first six questions and two of the  last five questions. Due date is next class period.

  1. Why are people with nephrotic syndrome, in which plasma proteins are lost into the urine, more susceptible to infectious diseases? How does the loss of plasma proteins into the urine affect NFP?

  2. If the blood pressure of a patient who is in shock as a result of a severe injury decreases greatly, how would you expect the volume of urine to change? Why?

  3. Urinary excretion is based on glomerular filtration, tubular secretion, and tubular reabsorption. Compare and contrast what is going on in each of these stages. What three mechanisms regulate glomerular filtration rate?

  4. Explain how the kidneys produce dilute urine. Describe the countercurrent mechanism. When during a normal day (24 hours) would you expect the urine to be most dilute and why?

  5. Define urinalysis and explain what a normal urinalysis would reveal. Include what the normal values would likely be.

  6. A 35-year old female on a high calcium diet has complained of dull persistent pain in the lower back and flank for several days. She exercises daily but fails to replenish water lost through urination and perspiration on a regular basis. This morning she awakened with intense pain in the abdomen. A routine urinalysis reveal a significant hematuria but no WBCs. What is hematuria? What may be a likely diagnosis? Describe a treatment.

  7. Name and describe the locations and major parts of the digestive system. Include the general functions of each digestive organ and accessory organ.

  8. List in a table the digestive enzymes, their sources, and their actions.

  9. Why is it advisable to relax after eating a meal? Involve in your answer the effects of the autonomic nervous system and the circulatory system on digestion.

  10. Describe the four basic tissue layers of the GI tract. Include in your answer their structure and function.

  11. Assume that you have labeled a fat in a glass of milk. Also assume that you have the technology available to tract that fat fat throughout the body. Describe the path that would be taken by the fat particle from the mouth to the aorta. In your answer be sure to indicate how the fat particle moves from one area to the next.