1) What is the primary function of lymph nodes? a) Produce red blood cells b) Transport oxygen c) Filter lymph and house immune cells d) Break down food 2) What do swollen lymph nodes indicate? a) A high production of red blood cells b) An ongoing immune response to infection or stress c) A decrease in body temperature d) Increased oxygen intake 3) Which gland produces T-lymphocytes (T-cells)? a) Thymus b) Spleen c) Appendix d) Tonsils e) Throid f) Thalamus 4) What is the function of Peyer’s patches? a) Filter blood in the spleen b) Prevent bacterial growth in the small intestine c) Produce stomach acid d) Control the body’s heat regulation 5) What is a function of the spleen? a) Absorb nutrients from food b) Produce insulin c) Remove old or damaged red blood cells d) Create antibodies 6) Which part of the immune system acts as the first line of defense before the virus enters the body? a) T-cells and B-cells b) Skin, hair, and mucous membranes 7) Where are the palatine tonsils located? a) In the stomach lining b) On the lateral walls of the pharynx c) Near the kidneys d) On the surface of the lungs 8) What happens when lymph nodes become swollen? a) They stop functioning entirely b) They show that the lymphatic system is responding to illness c) They produce excess red blood cells d) They lose all their lymph fluid 9) What happens to the thymus as a person ages? a) It becomes larger and produces more T-cells b) It remains the same size throughout life c) It shrinks and becomes less active in adulthood d) It moves from the chest to the abdomen 10) What tissue is found in the appendix? a) Cartilage b) Lymphoid tissue c) Muscle tissue d) Connective tissue 11) Why might a spleen be removed after it is ruptured? a) Because it contains harmful bacteria b) Because it cannot be easily repaired after a rupture c) Because it grows back after removal d) Because it no longer produces hormones 12) What is one reason lymphatic vessels have thin walls? a) To allow oxygen exchange b) To store extra nutrients c) To facilitate the easy flow of lymph fluid d) To support bone growth

Immune System Intro

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