PATHOLOGY

Detailed explanation-1: -Taste to the anterior two-thirds of the tongue is achieved through innervation from the chorda tympani nerve, a branch of the facial nerve (CN VII).

Detailed explanation-2: -The chorda tympani provides taste sensation from the anterior 2/3 tongue and also carries preganglionic parasympathetic nerve fibers that innervate the submandibular and sublingual salivary glands.

Detailed explanation-3: -Trigeminal sensory ganglion. The mandibular part of the trigeminal nerve supplies sensation to the lower third of the face, the anterior two-thirds of the tongue, the oral mucosa of the mouth, and the lower teeth.