Dental Of the total amount of saliva secreted by all the salivary glands in a day, more than half is secreted by: A Parotid gland. B Submandibular gland. C Sublingual gland. D Combined secretion from minor salivary glands. 💡 Explanation Of the total amount of saliva secreted by all the salivary glands in a day, more than half is secreted by: ✓ Correct Answer: B. Submandibular gland.