ATI RN
Lymphatic and Immune System Test Questions Questions
Question 1 of 5
Antigen sequestration is
Correct Answer: C
Rationale: Sequestration isolates antigens (e.g., brain); not phagocytosis , lymphocyte removal , or Peyer's .
Question 2 of 5
In bacterial infections, T cytotoxic cells do not seem to be very important. This is because:
Correct Answer: B
Rationale: Bacteria lack MHC I, needed for cytotoxic T cells; they're extracellular, not resistant or MHC II-related .
Question 3 of 5
What is the primary source of lymphocytes in the lymphatic system?
Correct Answer: A
Rationale: Bone marrow produces lymphocytes; liver makes blood in fetus, spleen filters, and kidneys excrete.
Question 4 of 5
What is the primary component of lymph?
Correct Answer: C
Rationale: Water is the main component of lymph; RBCs and platelets are minimal, WBCs are present but less.
Question 5 of 5
Which lymphatic vessel drains the intestines?
Correct Answer: A
Rationale: The thoracic duct drains intestines via cisterna chyli ; right duct is upper right, capillaries collect.