ATI RN
Immune System Quiz Questions Questions
Question 1 of 5
Identify the structure indicated by an arrow. Classify the tissue composing the structure.
Correct Answer: A
Rationale: The arrow indicates a trabeculum, made of dense irregular connective tissue, providing structural support.
Question 2 of 5
when spleen Contract, circulation is closed, while when spleen relax. Circulation open
Correct Answer: B
Rationale: Open-closed theory describes spleen circulation: closed when contracted, open when relaxed.
Question 3 of 5
Control multiplication of helper, suppresser T-cell
Correct Answer: B
Rationale: Thymic factor controls helper and suppressor T-cell multiplication.
Question 4 of 5
Identify the following organ & choose the correct statement:
Correct Answer: D
Rationale: Context suggests thymus (CD4+ and CD3+ T-cell production, D); spleen degrades RBCs , lymph nodes have vessels , tonsils produce antibodies .
Question 5 of 5
What is the function of cytokines produced by macrophages?
Correct Answer: C
Rationale: Cytokines from macrophages signal and coordinate immune responses ; they don't destroy pathogens directly , form vesicles , or primarily affect blood flow .