17. The Blood

Match the following leukocytes with the correct definition. 

__Basophil      

__B lymphocyte      

__Neutrophil      

__Monocyte       

__T lymphocyte      

__Eosinophil 

a. Destroys bacteria; directly phagocytoses bacteria

b. Responds to parasitic worm infection and mediates the allergic response

c. Activates all parts of the immune response; directly kills cancer or virally infected cells

d. Secretes inflammatory mediators

e. Agranulocyte that matures into macrophage

f. Agranulocyte that secretes antibodies

Lymphocytes are derived from the _____ cell line, whereas the other leukocytes are derived from the _____ cell line.

A blood sample from your patient shows that she has decreased numbers of neutrophils. Predict the effects of this condition. How would it differ if numbers of T lymphocytes were decreased instead?

Lymphocytes continuously circulate through the body using blood and lymph as their transport vehicles. What is the importance of this recirculation behavior?