FINAL EXAM PAPER 2026 CHAPTERS 20-
22 FULL QUESTIONS AND VERIFIED
ANSWERS
⩥ Percentage of tissue fluid reabsorbed by blood capillaries. Answer:
85%
⩥ Cytotoxic T cells. Answer: Cells that kill virus-invaded body cells and
cancerous body cells; involved in transplant rejection.
⩥ B lymphocytes response to a foreign antigen. Answer: Producing
antibodies.
⩥ Long-term immunity. Answer: Mainly a function of Memory
lymphocytes.
⩥ Thoracic duct. Answer: Empties lymph into the Left subclavian vein.
⩥ Fluid found in lymphatic vessels. Answer: Lymph.
⩥ IgG passing from mother to fetus. Answer: Naturally acquired passive
immunity.
, ⩥ Lymphatic organ that shows involution with age. Answer: Thymus.
⩥ Main site of B-cell maturation. Answer: Bone marrow.
⩥ Cells that perform phagocytosis. Answer: Macrophages.
⩥ Disease-causing organism. Answer: Pathogen.
⩥ First line of defense. Answer: Skin and mucous membranes.
⩥ Specific immune defense. Answer: Antibodies.
⩥ Humoral immunity. Answer: Mainly a function of B-lymphocytes (B-
cells).
⩥ Lymphatic tissue guarding body openings. Answer: MALT.
⩥ Lymphatic organ producing thymosins. Answer: Thymus.
⩥ Highly vascular and trauma-vulnerable lymphatic organ. Answer:
Spleen.