This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Fractures of Metacarpals, Phalanges, Metacarpo-Phalangeal Joints, Subject name: Orthopaedics
1st Carpal bone to ossify: 
Select and explain. 
A. Trapezoid, B. Capitate, C. Lunate, D. Pisiform
B: Capitate
Answer: B: Capitate 
Explanation: (b) CapitateOssification of the Carpal BonesOssification of the carpal bones occurs in a predictable sequence, starting with the capitates and ending with the pisiform.At birth, there is no calcification in the carpal bones. Although there is great individual variability, approximate ossification times are as follows:* Capitate: 1-3 months* Hamate: 2-4 months* Triquetrum: 2-3 years* Lunate: 2-4 years* Scaphoid: 4-6 years* Trapezium: 4-6 years* Trapezoid: 4-6 years* Pisiform: 8-12 years