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
All of the following muscles are derived from pharyngeal arches except: 
Select and explain. 
A. Tensor tympani, B. Levator palpebrae superioris, C. Palatine tensor, D. Orbicularis oculi
B: Levator palpebrae superioris
Answer: B: Levator palpebrae superioris 
Explanation: Levator palpebrae superioris is a somatic muscle that develops from the mesoderm. Tensor tympani & palatine tensor (tensor veli palatine) develops from first pharyngeal arch while orbicularis oculi (muscles of facial expression) develops from the second pharyngeal arch (facial nerve)