This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: FMGE 2017, Subject name: Anatomy
Cutaneous supply over parotid gland is by 
Select and explain. 
A. Auriculotemporal nerve, B. Greater auricular nerve, C. Greater occipital nerve, D. Facial nerve
B: Greater auricular nerve
Answer: B: Greater auricular nerve 
Explanation: 3 main salivary glands include parotid gland, submandibular gland and sublingual gland. The skin over the parotid gland is supplied by the greater auricular nerve and auriculotemporal nerve. Greater auricular nerve supplies the greater pa of auricle& the auriculotemporal nerve supplies the anterior pa of auricle and temporal area, also carries secretomotor fibers to the parotid gland and sensory innervation of parotid gland Preganglionic parasympathetic fibers to the oticGanglion come from the glossopharyngeal nerve. Facial nerve (VII) exits the skull through stylomastoid foramen & then passes into parotid gland, where it usually divides into upper & lower trunk.