This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Anatomy
[{'content': 'Which of the following is not a voluntary extraocular muscle \nSelect and explain. \nA. Superior rectus, B. Superior oblique, C. Superior tarsal muscle, D. Levator palpebrae superioris', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Voluntary Muscles:\n1. Four Recti ⇒\n→ Superior rectus.\n→ Inferior rectus.\n→ Medial rectus.\n→ Lateral rectus.\n2. Two obliques ⇒\n→ Superior oblique.\n→ Inferior oblique.\n3. Levator palpebrae superioris ⇒ Elevates the upper eyelid.\nInvoluntary Muscles:\n1. Superior tarsal muscle\xa0 ⇒ Elevates upper eyelid.\n2. Inferior tarsal muscle\xa0 ⇒ Depresses lower eyelid.\n3. Orbitalis muscle.', 'role': 'assistant'}]