Question

question 2 of 10
why do doctors check for swollen lymph nodes?
a. memory cells are stored in the lymph nodes.
b. bacteria and viruses mostly attack the lymph nodes.
c. it is impossible to immunize the lymph nodes.
d. lymph nodes are the site of white blood cell production.

Explanation:

Lymph nodes are an important part of the immune - system. They filter lymph fluid and contain immune cells. Swollen lymph nodes can indicate an infection or other immune - related problem as bacteria and viruses can be trapped and fought off in the lymph nodes. Memory cells are stored in lymph nodes and are ready to respond to pathogens.

Answer:

A. Memory cells are stored in the lymph nodes.