Which nerve provides sensation to the soft palate when blocked?

Which nerve provides sensation to the soft palate when blocked?

• A. Lesser palatine nerve
• B. Greater palatine nerve
• C. Nasopalatine nerve
• D. Lingual nerve

Answer: (A)

The soft palate gets its sensory supply mainly from the lesser palatine nerves, branches of the maxillary division that run through the lesser palatine foramina to innervate the mucosa of the soft palate, uvula, and surrounding palatal tissues. Blocking this nerve provides anesthesia to the soft palate specifically. In contrast, the greater palatine nerve supplies the hard palate and palatal gingiva; the nasopalatine nerve covers the anterior hard palate and nasal septum; the lingual nerve supplies the anterior two-thirds of the tongue and the floor of the mouth rather than the soft palate.

The soft palate gets its sensory supply mainly from the lesser palatine nerves, branches of the maxillary division that run through the lesser palatine foramina to innervate the mucosa of the soft palate, uvula, and surrounding palatal tissues. Blocking this nerve provides anesthesia to the soft palate specifically. In contrast, the greater palatine nerve supplies the hard palate and palatal gingiva; the nasopalatine nerve covers the anterior hard palate and nasal septum; the lingual nerve supplies the anterior two-thirds of the tongue and the floor of the mouth rather than the soft palate.