Areas of lymphocytes suspended by reticular fibers in the spleen are known as __________.

Identify the structures of the lymphatic system in the following diagram.

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a. ___

b. ___

c. ___

d. ___

e. ___

f. ___

g. ___

h. ___

i. ___

j. ___

k. ___

l. ___

m. ___

n. ___

o. ___

p. ___

q. ___

A friend tells you that she has tender, swollen 'glands' along the left side of the front of her neck. You notice that she has a bandage on her left cheek that is not fully hiding a large infected cut there. Exactly what are her swollen 'glands,' and how did they become swollen?

The lymphoid organ that functions primarily during youth and then begins to atrophy is:

a. Spleen

b. Thymus

c. Palatine tonsils

d. Bone marrow

The lymphoid organ that filters the blood is the ______, and the lymphoid organ that filters the lymph is the______.