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: Unknown
[{'content': 'Muscles of mastications are derived from - \nSelect and explain. \nA. 1st Arch, B. 2nd Arch, C. 3rd Arch, D. 4th Arch', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., 1st arch o Special visceral efferent fibers of the glossopharyngeal nerve arise in the nucleus ambiguous and supply the stylopharyngeus muscle.o It is the only muscle supplied by the glossopharyngeal nerve.ArchMuscles of the archNerve of the archIMuscles of mastication (masseter. temporalis, medial and lateral pterygoids, tensor veli palatine, tensor tympani, the mylohyoid.anterior belly of digastric)Mandibular division of trigeminalnMuscles of facial expression, occipitofrontalis, platysma, stapedius, stylohyoid, posterior belly of digastricsFacialmStylopharyngeusGlossopharyngealNCricothyroidConstrictors of the pharynx (3), Levator veli PlatiniExternal laryngeal nerve Vago accessory' complexVIAll other muscles of the larynxRecurrent laryngeal nerve", 'role': 'assistant'}]