Essay on Immune System and Adhesion Molecules

72800 Words Dec 8th, 2013 292 Pages
Questions
1. Th e pediatrician described Jason’s pharynx, uvula, and tonsils as swollen and red. What are the four cardinal signs of inflammation, and how does each relate to changes in the blood vessels at a site of inflammation?

Heat, redness, swelling and pain.

2. The exudate on Jason’s tonsils consisted primarily of neutrophils, and the CBC that was performed indicated that the number of neutrophils in his circulation was increased. What role do neutrophils play in the resolution of a bacterial infection? In the course of your answer explain terms such as adhesion molecules, diapedesis, chemotaxsis, opsonization, and phagocytosis.
3. Jason’s physician noted that Jason’s cervical lymph nodes were enlarged, a condition
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3. Jason’s physician noted that Jason’s cervical lymph nodes were enlarged, a condition referred to as lymphdenopathy. Describe the structure and function(s) of lymph nodes, and list the other organs and tissues that comprise the lymphatic system.
4. Describe the anatomic location and function of tonsils.
5. What is the mechanism by which fever is induced and what are its benefits in terms of combating an infection?
6. What is the mechanism by which the number of circulating white blood cells is increased?

Questions
1. Th e pediatrician described Jason’s pharynx, uvula, and tonsils as swollen and red. What are the four cardinal signs of inflammation, and how does each relate to changes in the blood vessels at a site of inflammation?

Heat, redness, swelling and pain.

2. The exudate on Jason’s tonsils consisted primarily of neutrophils, and the CBC that was performed indicated that the number of neutrophils in his circulation was increased. What role do neutrophils play in the resolution of a bacterial infection? In the course of your answer explain terms such as adhesion molecules, diapedesis, chemotaxsis, opsonization, and phagocytosis.
3. Jason’s physician noted that Jason’s cervical lymph nodes were enlarged, a condition referred to as lymphdenopathy. Describe the structure and function(s) of lymph nodes, and list the

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