Human Physiology, 14th edition (2016)

(Tina Sui) #1
The Immune System 531

diseases? Relate this to the function of regulatory T
lymphocytes.


  1. People with peanut allergies could go into anaphylactic
    shock (chapter 14, section 14.7) if they are exposed to
    peanuts in any form. Explain what this means and how it
    occurs.

  2. Identify some immunologically privileged sites in the body
    and explain how immunological privilege is produced. How
    does this relate to cancer, and what does it suggest about
    possible treatments for cancer?


Test Your Quantitative Ability
Use figure 15.6 to answer the following questions regarding the
arrival of leukocytes to the site of a local inflammation.


  1. Which leukocytes are the first and last to arrive?

  2. About how long does it take for the number of monocytes to
    peak?

  3. About how long does it take for neutrophils to reach half
    their final number?

  4. About how long does it take for T lymphocytes to peak in
    number?


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