Which nerve carries taste from the anterior two-thirds of the tongue?

Explore the Hemispheres 3.0 Level I Brain Anatomy and Physiology Test. Study with detailed questions, answers, and hints. Enhance your knowledge and boost your preparation for success!

Multiple Choice

Which nerve carries taste from the anterior two-thirds of the tongue?

Explanation:
Taste from the anterior two-thirds of the tongue is carried by special fibers that ride with the chorda tympani, a branch of the facial nerve. These taste fibers travel with the lingual nerve to reach the anterior tongue mucosa, and the chorda tympani also carries parasympathetic signals to submandibular and sublingual glands. This is why the facial nerve is responsible for sensation of taste in that region. For contrast, taste from the posterior one-third is carried by the glossopharyngeal nerve, and other regions of taste involve the vagus nerve.

Taste from the anterior two-thirds of the tongue is carried by special fibers that ride with the chorda tympani, a branch of the facial nerve. These taste fibers travel with the lingual nerve to reach the anterior tongue mucosa, and the chorda tympani also carries parasympathetic signals to submandibular and sublingual glands. This is why the facial nerve is responsible for sensation of taste in that region. For contrast, taste from the posterior one-third is carried by the glossopharyngeal nerve, and other regions of taste involve the vagus nerve.

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