The TMJ receives sensory innervation from branches of which division of the trigeminal nerve?

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Multiple Choice

The TMJ receives sensory innervation from branches of which division of the trigeminal nerve?

Explanation:
The sensory input to the TMJ comes from branches of the mandibular division of the trigeminal nerve. The auriculotemporal nerve, a branch of this division, wraps around the joint and provides sensory fibers to the joint capsule and articular disc. That makes V3 the source of TMJ sensation. The ophthalmic (V1) and maxillary (V2) divisions don’t supply the TMJ’s sensory innervation, and the facial nerve (VII) isn’t involved in the joint’s general sensory supply. So, the mandibular division is the correct source.

The sensory input to the TMJ comes from branches of the mandibular division of the trigeminal nerve. The auriculotemporal nerve, a branch of this division, wraps around the joint and provides sensory fibers to the joint capsule and articular disc. That makes V3 the source of TMJ sensation. The ophthalmic (V1) and maxillary (V2) divisions don’t supply the TMJ’s sensory innervation, and the facial nerve (VII) isn’t involved in the joint’s general sensory supply. So, the mandibular division is the correct source.

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