ATI RN
Immune System Questions and Answers Quizlet Questions
Question 1 of 5
Lymphatic vessels play a crucial role in the absorption of dietary fats. Which vessel is responsible for transporting absorbed fats to the bloodstream?
Correct Answer: A
Rationale: The thoracic duct transports dietary fats (chyle) to the bloodstream.
Question 2 of 5
Place the events of inflammation in chronological order. Clotting and swelling walls off the injured area from the rest of the body. Fluid and clotting factors escape into tissues. Release of histamine leads to dilation of blood vessels. Macrophage phagocytize pathogens and stimulate immune responses. Monocytes and neutrophils migrate into injured tissue.
Correct Answer: C
Rationale: Histamine dilates vessels, fluid escapes, clotting occurs, phagocytes migrate, then macrophages act.
Question 3 of 5
Perforins are secreted by:
Correct Answer: B
Rationale: Cytotoxic T cells secrete perforins to kill targets.
Question 4 of 5
Lymph from the left arm would return to the heart through the:
Correct Answer: B
Rationale: Thoracic duct drains left arm lymph into the left subclavian vein; inferior vena cava is venous, right duct drains right side, and aorta is arterial.
Question 5 of 5
Regarding hypersensitivity reactions
Correct Answer: D
Rationale: Type III deposits complexes in vessels ; complexes alone don't imply disease , it's exogenous , Pemphigus is antibody-mediated , and TH2 drives IgE .