17. The Blood

Name the three types of lymphocytes and identify their functions.

Which kinds of WBCs contribute to the body's nonspecific defenses?

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

How do red blood cells differ from white blood cells in both form and function?

Monocytes can differentiate into which types of immune cells?

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?

Two immune cells have very similar functions. Both immune cells release histamine and induce inflammation. However, ______________cells reside in specific tissues, while____________ cells travel through the blood stream.

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

What four characteristics of WBCs are important to their response to tissue invasion or injury?

More than one choice may apply.

Which of the following is not typical of leukocytes?

a. Amoeboid movement

b. Phagocytic (some)

c. Nucleated cells

d. The most numerous cells in the bloodstream

Which of the following immune cells is NOT a professional phagocyte?

If you had a severe infection, would you expect your WBC count to be closest to 5000, 10,000, or 15,000/μl?

What is this condition called?