HEAD NECK
SCALP FACE TEMPLE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Ophthalmic nerve
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Mandibular nerve
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Maxillary nerve
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None of the above
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Detailed explanation-1: -The mandibular nerve is the only branch of the trigeminal nerve with a motor component (V3). This branch supplies motor innervation to the facial muscles involved in mastication, which include the masseter, temporalis muscle, and lateral and medial pterygoids.
Detailed explanation-2: -The mandibular nerve carries sensory information from the lower lip, the lower teeth, gums, the chin and jaw (except the angle of the mandible, which is supplied by C2-C3), parts of the external ear, and parts of the meninges. The mandibular nerve carries touch/position and pain/temperature sensations from the mouth.
Detailed explanation-3: -The ophthalmic nerve is the first branch of the trigeminal nerve (CN V). It is joined by filaments from the cavernous plexus of the sympathetic, and communicates with the oculomotor, trochlear, and abducent nerves. It gives off a recurrent (meningeal) filament which passes between the layers of the tentorium.