Medical association – disease and affected body part: “Ophthalmia” is related to the “eye” in the same way that “rickets” is related to which body part?

Introduction / Context:
This GK question tests recognition of diseases and their primary sites of effect. “Ophthalmia” refers to inflammation of the eye; we need the analogous target tissue or structure for “rickets.”

Given Data / Assumptions:

• Ophthalmia → eye inflammation.
• Rickets → disorder due to vitamin D deficiency (often with calcium/phosphate imbalance).
• We must name the primary body system/part affected by rickets.

Concept / Approach:
Rickets leads to defective mineralization of the growing skeleton, causing bone deformities (bowed legs, delayed growth). Therefore, the core affected part is the bones. Options naming other organs (kidney, nose, heart, liver) do not match the classic pathology of rickets.

Step-by-Step Solution:

Verification / Alternative check:

Why Other Options Are Wrong:

• Kidney/Heart/Liver/Nose: Not the primary target in rickets.

Common Pitfalls:
Confusing rickets with scurvy (vitamin C deficiency affecting connective tissues) or general malnutrition affecting multiple systems. Remember: rickets → bones.

Final Answer:
Bone