This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Head and neck, Subject name: Anatomy
[{'content': 'Uncinate process is a pa of which bone \nSelect and explain. \nA. Nasal, B. Ethmoid, C. Maxilla, D. Frontal', 'role': 'user'}, {'content': 'Answer: B \nExplanation: In the ethmoid bone, a curved lamina, the uncinate process, projects downward and backward from this pa of the labyrinth; it forms a small pa of the medial wall of the maxillary sinus, and aiculates with the ethmoidal process of the inferior nasal concha. Ref - medscape.com', 'role': 'assistant'}]