Which of the following is the largest lymphatic organ?

More than one choice may apply.

Where exactly does an antigen bind to an antibody molecule?

Once almost a rite of childhood, tonsillectomy (surgical removal of the tonsils) is now rarely performed. Similarly, while ruptured spleens were once routinely removed, they are now conserved whenever possible. Why should these lymphoid organs be preserved when possible?

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. ___