Asked: UPPCS (Pre) 2004, UP Lower Sub. (Pre) 2004medium Level
QUESTION STATEMENT:द्विभाषी / Bilingual
मनुष्य के अंगों में से, हानिकारक विकिरणों से सबसे कम सुप्रभाव्य अंग कौन-सा है?
Among human organs, which one is least susceptible/affected by harmful radiations?
SELECT CORRECT OPTION:
A
आंख
Eye
B
हृदय
Heart
C
मस्तिष्क
Brain
Correct
D
फेफड़े
Lungs
Official Solution & Explanation:
Correct Answer: Option C(मस्तिष्क)
हानिकारक विकिरणों (Ionizing radiation) से सर्वाधिक सुप्रभाव्य (अतिसंवेदनशील) अंग आंख तथा अस्थि मज्जा होते हैं, जबकि सबसे कम सुप्रभाव्य (कम संवेदनशील) अंग मस्तिष्क है क्योंकि मस्तिष्क की तंत्रिका कोशिकाएं विभाजित नहीं होतीं।
Brain cells (neurons) are non-dividing and post-mitotic, making the brain the least radiosensitive organ to harmful ionizing radiations, unlike eyes or bone marrow which are highly vulnerable.
Subject: General Science•Topic: Diseases and Treatment•Subtopic: Diseases and Treatment
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