Free Salivary Glands MCQs with Answers

• A. Striated duct
• B. Intercalated & terminal duct
• C. Serous cells
• D. Mucous cells

Explanation: Myoepithelial cells lie between the basement membrane and secretory or intercalated duct cells, where their contraction helps expel…

• A. PAP stain
• B. H & E stain
• C. Mucicarmine stain
• D. Mallory stain

Explanation: Mucicarmine specifically stains epithelial mucin a rose-red colour, making it useful for demonstrating mucous secretions.

• A. Lysozyme
• B. Phosphate
• C. Bicarbonate
• D. Trypsin

Explanation: Saliva contains antimicrobial lysozyme and the buffers phosphate and bicarbonate, but it does not normally contain the digestive enzyme…

• A. The posterior lingual glands
• B. The palatine glands
• C. The glossopalatine glands
• D. The anterior lingual glands located near the apex of tongue

Explanation: The glands of Blandin and Nuhn are anterior lingual glands situated near the apex and ventral surface of the tongue.

• A. Glosso palatine & palatine glands
• B. Labial and buccal glands
• C. Vonebners glands
• D. Lingual glands

Explanation: The glossopalatine and palatine glands are predominantly or purely mucous glands.

• A. glands at apex of tongue
• B. Posterior lingual mucous glands
• C. Posterior lingual serous glands
• D. Glosso palatine glands

Explanation: Von Ebner glands are purely serous posterior lingual glands associated with the circumvallate papillae.

• A. Also known as basket cell
• B. Structure is similar to smooth muscle and contains actin & myosin
• C. The cell expel secretions by contraction
• D. All of the above

Explanation: Myoepithelial cells are also called basket cells, contain contractile actin and myosin, and contract around acini or ducts to help expel…

• A. Sublingual duct
• B. Submandibular glands
• C. Parotid duct
• D. Lacrimal duct

Explanation: Bartholin's duct is the greater sublingual duct, draining much of the sublingual gland and opening near the submandibular duct.

• A. Pancreas
• B. Submandibular gland
• C. Lacrimal gland
• D. Parotid

Explanation: Wharton's duct is the excretory duct of the submandibular gland and opens beside the lingual frenulum.

• A. Mucous gland
• B. Serous gland
• C. Mixed gland
• D. Present in root of tongue

Explanation: The sublingual gland is a mixed gland, although its secretion is predominantly mucous.

• A. Parotid glands
• B. Sublingual glands
• C. None of the above
• D. Submandibular glands

Explanation: The submandibular glands provide approximately 60 to 70% of unstimulated or resting saliva, whereas the parotids contribute more during…

• A. Minor salivary glands (Retromolar)
• B. Major salivary glands
• C. Minor salivary gland ( lingual)
• D. Taste Buds

Explanation: Carmalt's glands are minor mucous salivary glands located in the retromolar region. They are not major glands or taste buds.

• A. Initiating contraction
• B. Support for the end piece during active secretion of saliva
• C. All of the above
• D. Provide signals to the acinar secretary cells for structure organization

Explanation: Myoepithelial cells contract around acini and ducts, helping expel saliva while also supporting the secretory end pieces.

• A. Hyaluronidase
• B. Peroxidase
• C. Lactoferin
• D. Lysozhyme

Explanation: Lysozyme breaks down bacterial peptidoglycan in the cell wall, giving saliva an antibacterial action.

• A. Bicarbonate
• B. Carbonate
• C. NH3
• D. Chlorides

Explanation: Bicarbonate is the principal buffering substance in saliva and neutralizes acids produced by oral bacteria.

• A. 750 ml
• B. 450 ml
• C. 1500 ml
• D. 1000 ml

Explanation: The submandibular glands secrete roughly 500 to 700 mL of saliva per day, making 450 mL the closest listed estimate.

• A. Liver
• B. Pancreas
• C. Salivary glands
• D. Gastric glands

Explanation: Serous demilunes are crescent-shaped serous cells around mucous acini in mixed salivary glands, especially the submandibular and…

• A. None of the above
• B. Antibacterial action by secreting lysoenzymes and lactoferrin
• C. Synthesis of secretory glycoproteins by Kallidrein an enzyme in striated duct cells
• D. To convey the saliva secreted by the terminal secretory units to oral cavity

Explanation: The basic role of a salivary duct is to carry saliva from the terminal secretory units toward the oral cavity, while duct cells also…

• A. All of the above
• B. They contain secretory granules in the apical Cytoplasm and the secretion of granule content occurs by exocrytosis
• C. Serous cells are pyramidal in shape
• D. They are specialized for the synthesis, storage and secretion of proteins

Explanation: Serous cells are pyramidal protein-secreting cells with apical zymogen granules released by exocytosis, so all three statements describe…

• A. Major salivary glands
• B. Major & minor salivary glands
• C. Minor salivary glands
• D. Parotid gland

Explanation: Saliva is produced by both major glands, such as the parotid, submandibular, and sublingual glands, and numerous minor salivary glands.