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Dentistry · Oral histology and anatomy: TMJ sensory supply
Sample itemA patient with temporomandibular joint pain has referred pain in front of the ear. Which nerve is the principal sensory supply of the joint?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
D. Auriculotemporal nerve
The TMJ is supplied mainly by the auriculotemporal nerve with additional twigs from the masseteric nerve. This explains the preauricular pain pattern of joint disorders.
Option by option
A. Facial nerve
The facial nerve is motor to the face and not the sensory nerve of the joint.
B. Greater auricular nerve
The greater auricular nerve supplies skin over the angle of the mandible and lower ear.
C. Glossopharyngeal nerve
The glossopharyngeal nerve supplies the pharynx and back of the tongue.
D. Auriculotemporal nerve (correct)
Correct. The auriculotemporal branch of the mandibular nerve supplies the joint capsule.
Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.
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