This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Bone, Subject name: Orthopaedics
Most vascular part of a bone is: 
Select and explain. 
A. Epiphysis, B. Metaphysis, C. Diaphysis, D. Epiphyseal cartilage
B: Metaphysis
Answer: B: Metaphysis 
Explanation: Ans: b (Metaphysis) Ref: Maheswari, 3rd ed, (Rev)p. 157Metaphysis is the most vascularised zone of boneDue to which it becomes a favourite site for In metaphysis vessels are arranged in the form of loops(hairpin arrangement)|Blood stasis -- bacteria settle|Most common site for osteomyelitisosteomyelitis.Thus metaphysis becomes the most common site prone for osteomyelitis.Note:Strongest part of bone- diaphysis