Sensory of angle of jaw is through:
**Core Concept**
The sensation of the angle of the jaw is mediated by the trigeminal nerve, specifically through its auriculotemporal and buccal branches. This is an example of somatic sensation, which is the perception of external stimuli by specialized sensory receptors.
**Why the Correct Answer is Right**
The auriculotemporal nerve, a branch of the mandibular division of the trigeminal nerve (cranial nerve V3), provides sensory innervation to the external auditory meatus, the temporomandibular joint, and the angle of the jaw. The buccal nerve, another branch of the mandibular division, also contributes to the sensory innervation of the angle of the jaw. The convergence of sensory inputs from these nerves allows for the perception of sensations such as touch, pressure, and temperature at the angle of the jaw.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is not provided.
**Option B:** This option is not provided.
**Option C:** This option is not provided.
**Clinical Pearl / High-Yield Fact**
The trigeminal nerve is responsible for sensory innervation of the face, including the skin, muscles of mastication, and blood vessels. Damage to this nerve can result in numbness or pain in the face, as well as difficulties with chewing and swallowing.
**Correct Answer:** D.