This fact is from Salivary Gland Anatomy in Oral Anatomy & Histology. It is a commonly tested concept in NEET MDS examinations. Understanding this fact is crucial for answering MCQs correctly.
Submandibular = mixed serous predominant Whartons duct
Sublingual = mixed mucous predominant Bartholins duct duct of Rivinus
Myoepithelial cells present in all glands = contraction
Von Ebner glands = minor salivary = serous = circumvallate papillae
Sialolith = submandibular most common = Whartons duct.