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Salivary Gland Anatomy & Histology

Oral Anatomy, Histology & Embryology • NEET MDS Study Guide • AI-Generated Notes

⭐ High-Yield Facts for Exam

  • Parotid = largest, purely serous, Stensen's duct.
  • Submandibular = mixed (serous-predominant), Wharton's duct.
  • Sublingual = mucous-predominant, Bartholin's duct.
  • Myoepithelial cells aid secretion.
  • Ducts: intercalated → striated → excretory.

Salivary Gland Anatomy & Histology

  • Parotid — largest; purely serous; drains via Stensen's duct (opposite the maxillary second molar); facial nerve passes through it.
  • Submandibular — mixed, serous-predominant; Wharton's duct (floor of mouth).
  • Sublingual — smallest major gland; mixed, mucous-predominant; drains via ducts of Rivinus and Bartholin's duct.

Histology

Serous acini (watery, enzyme-rich) vs mucous acini (viscous). Myoepithelial cells surround acini/ducts to aid secretion. Duct system: intercalated → striated → excretory.

Exam Tips ⭐

Parotid = serous (Stensen's); submandibular = mixed serous-predominant (Wharton's); sublingual = mucous-predominant.

📝 Practice MCQs — Salivary Gland Anatomy & Histology

Q1. The parotid gland secretion is:
A. Purely mucous
B. Purely serous
C. Mucous-predominant
D. Equal mix
Show Answer
✅ Answer: B
The parotid is a purely serous gland.
Q2. Wharton's duct drains the:
A. Parotid
B. Submandibular gland
C. Sublingual gland
D. Lacrimal gland
Show Answer
✅ Answer: B
Wharton's duct is the submandibular duct.
Q3. Which cells aid expulsion of saliva from acini?
A. Goblet cells
B. Myoepithelial cells
C. Chief cells
D. Parietal cells
Show Answer
✅ Answer: B
Myoepithelial cells contract to help secretion.
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