This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Upper Extremity, Subject name: Anatomy
[{'content': 'Card test is done for- \nSelect and explain. \nA. Plamar interossei, B. Dorsal interossei, C. Abductor pollicis brevis, D. Palmaris longus', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Plamar interossei * Card Test: This is for palmar interossei (adductors) of the fingers. In this test, the examiner inserts a card between two extended fingers and the patient is asked to hold it as tightly as possible while the examiner tries to pull the card out. The power of adductors can thus be judged. In case of weak palmar interossei, it is easy to pull out the card. First dorsal interosseous muscle can be separately examinated by asking the patient to abduct the index finger against resistance.", 'role': 'assistant'}]