Update ) Anatomy and
Physiology IV with Lab | Questions &
Answers | 100% Correct | Grade A -
Chamberlain
1. The primary function of the lymphatic system is to:
A. Transport oxygen
B. Maintain fluid balance and immunity
C. Digest fats only
D. Store glucose only
Correct Answer: B
Rationale: Lymphatic vessels return interstitial fluid to the
bloodstream and filter pathogens.
2. Lymph is:
A. Plasma only
B. Interstitial fluid collected by lymphatic vessels
C. RBCs only
D. Platelets only
Correct Answer: B
Rationale: Contains water, solutes, and immune cells traveling
through lymphatics.
,3. Lymph nodes function to:
A. Filter lymph and trap pathogens
B. Store glucose only
C. Transport oxygen only
D. Digest fats only
Correct Answer: A
Rationale: House lymphocytes and macrophages for immune
defense.
4. The spleen functions to:
A. Filter blood and remove old RBCs
B. Produce insulin only
C. Digest food only
D. Store oxygen only
Correct Answer: A
Rationale: Contains red pulp for RBC recycling and white pulp for
immune surveillance.
5. Tonsils are:
A. Lymphoid tissues that protect the pharynx
B. RBC-producing organs only
C. Platelet storage only
D. Digestive enzymes only
Correct Answer: A
Rationale: Trap and destroy pathogens entering via mouth or nose.
,6. Thymus gland is responsible for:
A. T cell maturation
B. RBC production only
C. Platelet formation only
D. Antibody production only
Correct Answer: A
Rationale: Produces mature T lymphocytes essential for adaptive
immunity.
7. The thoracic duct drains lymph from:
A. Most of the body into the left subclavian vein
B. Right arm only
C. Brain only
D. Liver only
Correct Answer: A
Rationale: Largest lymphatic vessel returning lymph to circulation.
8. Lymphatic capillaries are:
A. Blind-ended vessels that absorb interstitial fluid
B. Continuous with blood capillaries
C. Produce RBCs only
D. Store platelets only
Correct Answer: A
Rationale: Allow one-way flow of fluid and large particles like
proteins and pathogens.
, 9. Lymphocytes include:
A. B cells and T cells
B. RBCs only
C. Platelets only
D. Neutrophils only
Correct Answer: A
Rationale: Key cells in adaptive immunity.
10. B cells function to:
A. Produce antibodies
B. Destroy virus-infected cells only
C. Carry oxygen only
D. Form clots only
Correct Answer: A
Rationale: Differentiate into plasma cells that secrete specific
antibodies.
11. T cells function to:
A. Mediate cell-mediated immunity
B. Produce antibodies only
C. Transport oxygen only
D. Form clots only
Correct Answer: A
Rationale: Attack infected, abnormal, or transplanted cells directly.