Surgery While performing a submandibular sialography the cannula is inserted in the following direction to prevent damage to Wharton’s duct. A Upward and medial B Medial to lateral C Lateral to medial D Lateral and downward 💡 Explanation While performing a submandibular sialography the cannula is inserted in the following direction to prevent damage to Wharton's duct. ✓ Correct Answer: B. Medial to lateral