Which metabolic bone disease in young children is caused by a nutritional deficiency of Vitamin D, leading to soft, bowed legs?
Answer and explanation
Correct answer: B. Rickets
- Step 1: Vitamin D promotes intestinal absorption of dietary calcium and phosphate ions. Step 2. Deficiency prevents proper calcification of growth plates in growing pediatric long bones, causing skeletal deformities. Answer: Rickets. Why not the others: Osteomalacia occurs in mature adults after epiphyseal plate closure; osteoporosis involves bone mass reduction; Paget's is localized remodeling.
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