18 Questions
Which of the following are major salivary glands?
Submandibular gland
What type of cells line the intercalated ducts in the duct system of salivary glands?
Low cuboidal cells
Which salivary gland is predominantly mucous?
Sublingual gland
What is the composition of the secretion produced by serous acini?
Serous and enzyme-rich secretion
5
"Parotid and Submandibular"
Which salivary gland produces the highest percentage of salivary output?
Submandibular gland
Which type of salivary gland is not capsulated?
Labial gland
Which type of acini secretes serous secretion rich in enzymes?
Serous Acini
What is the function of mucous acini with a cap?
Lubricate food bolus
What is the supporting element of the salivary glands' microscopic structure?
(Supporting element) Parenchyma
Which gland is considered a major salivary gland?
(Capsulated) Parotid gland
What percentage of salivary output do minor salivary glands produce?
5%
What is the structure that divides the salivary glands into lobes and lobules?
C.T. septa
Which type of acini contains small, spherical, and demilunes cells?
Serous Acini
What is the function of mucoserous (mixed) acini?
Secrete both serous and mucous secretions
What is the function of seromucous glands?
Secrete serous secretion rich in enzymes such as amylase.
What do most minor salivary glands produce?
Pure mucous or seromucous secretion.
What is the functional element of the salivary glands' microscopic structure?
(functional element) C.T. capsule.
Study Notes
Salivary Glands
- Major salivary glands include:
- Parotid gland
- Submandibular gland
- Sublingual gland
- Intercalated ducts in the duct system of salivary glands are lined with cuboidal cells.
Composition of Secretions
- Serous acini produce secretion rich in enzymes, specifically:
- Water
- Electrolytes
- Enzymes (e.g., amylase, lipase)
- Mucous acini produce mucin, a thick, protective substance.
Functions and Characteristics
- The parotid gland produces the highest percentage of salivary output.
- The sublingual gland is not capsulated.
- Serous acini secrete enzymes, while mucous acini secrete mucin.
- Mucous acini with a cap (demilunes) function in mucin production.
- The functional element of the salivary glands' microscopic structure is the acinus.
- The supporting element of the salivary glands' microscopic structure is the connective tissue.
Minor Salivary Glands
- Minor salivary glands produce a small percentage (about 10%) of salivary output.
- Most minor salivary glands produce mucous secretions.
Salivary Gland Structure
- The structure that divides the salivary glands into lobes and lobules is the connective tissue.
- Mucoserous (mixed) acini contain both mucous and serous cells, and function in producing both mucin and enzymes.
- Seromucous glands produce both serous and mucous secretions.
- The functional element of the salivary glands' microscopic structure is the acinus, which contains serous or mucous cells.
Test your knowledge of the microscopic structure and function of the major salivary glands with this quiz. Topics include duct system, cell types, and acini of salivary glands.
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