5.5 Review Questions

Which of the following cells is phagocytic?

1. plasma cell
2. macrophage
3. B cell
4. NK cell

Which structure allows lymph from the lower right limb to enter the bloodstream?

1. thoracic duct
2. right lymphatic duct
3. right lymphatic trunk
4. left lymphatic trunk

Which of the lymphoid nodules is most likely to see food antigens first?

1. tonsils
2. Peyer’s patches
3. bronchus-associated lymphoid tissue
4. mucosa-associated lymphoid tissue

The elimination of self-reactive thymocytes is called ____.

1. positive selection.
2. negative selection.
3. tolerance.
4. clonal selection.