This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Upper limb : Miscellaneous, Subject name: Anatomy
TRUE about blood supply of scaphoid 
Select and explain. 
A. Mainly through ulnar aery, B. Major supply from ventral surface, C. Major supply from dorsal surface, D. Proximal supply in antegrade fashion
C: Major supply from dorsal surface
Answer: C: Major supply from dorsal surface 
Explanation: Major blood supply to the scaphoid is the radial aery. 70-80 % of the intraosseous vascularity and the entire proximal pole is from branches of the radial aery entering through the dorsal ridge.