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': 'All the following are true regarding 5th cranial (Trigeminal) nerve except: \nSelect and explain. \nA. Arises from midbrain, B. Innervate muscles of mastication, C. Carries parasympathetic fibres to salivary glands, D. Provides sensory innervation to face', 'role': 'user'}, {'content': 'Answer: A \nExplanation: (Refer: Richard S. Snell’s Clinical Anatomy by Regions, 9th edition, pg no: 607- 610)\nTrigeminal nerve\n\nMesencephalic nucleus is situated in midbrain, spinal nucleus of trigeminal it extends from pons to C3 segments.\nIt carries parasympathetic fibres to salivary glands.\nFour peripheral parasympathetic ganglia (Ciliary, otic, pterygopalatine and submandibular) are topographically connected with 3 divisions of 5th cranial nerve, but they are not functionally related to it.\nPterygopalatine ganglia connected with maxillary nerve (supplies minor salivary glands-pharyngeal and palatine glands).\nOtic ganglia connected with mandibular nerve (supplies parotid gland).\nSubmandibular ganglia connected with lingual nerve (branch of mandibular)-(supplies submandibular and sublingual gland).\nTrigeminal nerve (mixed nerve) has large sensory root laterally and small motor root medially.\nMandibular division (has both motor and sensory) of trigeminal nerve innervate muscles of mastication.\nOphthalmic division and maxillary division are purely sensory.\nAll 3 division-ophthalmic, maxillary and mandibular division provides sensory innervation of face.', 'role': 'assistant'}]