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Question #46557
The Question
A chronic opioid addict abruptly ceases drug use and experiences severe withdrawal syndrome, characterized by extreme physiological and psychological stress. Shortly after, the patient develops recurrent opportunistic infections specifically in the respiratory and gastrointestinal tracts. Which of the following best explains the neuro-endocrine-immune mechanism responsible for this specific susceptibility?
Options
- A.
Hyperactivation of the Hypothalamic-Pituitary-Adrenal (HPA) axis causes a surge in glucocorticoids, which suppresses the immune surveillance of Mucosa-Associated Lymphoid Tissue (MALT).
- B.
Stress-induced hypersecretion of mineralocorticoids from the adrenal cortex reduces the inflammatory response, thereby downregulating the phagocytic activity of macrophages.
- C.
Withdrawal-induced sympathetic nervous system activation releases catecholamines that directly inhibit the maturation of T-lymphocytes in the thymus.
- D.
The physiological stress depletes humoral immunity by inhibiting the direct production of antibodies from T-helper cells in the secondary lymphoid organs.
Check Your Answer
Correct Answer
Step-by-Step Solution
Explanation
How the Examiner Thinks
Regulatory_Failure
Understand how NOT, EXCEPT, and logical constraints are used to manipulate exam results.
Concepts Behind This Question
MALT_Structure|Glucocorticoids|Cortisol_Spike
Why This Question Is Tricky
Common Mistakes
Conceptual Pivot: This question requires the integration of three distinct NCERT concepts: 'Drug Withdrawal' and 'MALT' (Human Health and Disease) with 'HPA-axis/Glucocorticoid function' (Chemical Coordination and Integration).
The primary trap relies on Functional Confusion (Glucocorticoids vs.
Mineralocorticoids) and a fundamental biological error (T-cells producing antibodies) to test if the student truly understands the mechanism of stress-induced immunosuppression rather than just memorizing facts in isolation.
Quick Facts About This Question
Question Information
| Subject | Biology |
| Chapter | Human Health and Disease - Class 12 |
| Concept | Drug Withdrawal Syndrome |
| Difficulty | 8 |
| Cognitive Load | 5 |
| Target Solve Time | 120 sec |
| Access | Free |