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
Which muscle does NOT contribute to dorsal digital expansion 
Select and explain. 
A. Interossei, B. Lumbricals, C. Extensor digitorum, D. Adductor pollicis
D: Adductor pollicis
Answer: D: Adductor pollicis 
Explanation: Dorsal digital expansion is a tendinous modification of extensor digitorum and receives attachment of lumbricals, interossei but not adductor pollicis. Lumbricals andinterossei- MCP Flexion & IP extension their attachments to dorsal digital Expansion