Flashcards L1: Histology of Mouth and Salivary Glands | Quizlet

What are the three major pairs of salivary glands?

The parotid, submandibular, and sublingual glands.

Which major salivary gland is characterized by a purely serous secretion?

The parotid gland.

What is the predominant secretion type of the submandibular gland?

A mixed secretion that is predominantly serous.

Which salivary gland is the smallest and produce a mostly mucous secretion?

The sublingual gland.

What is a serous demilune?

A crescent-shaped cap of serous cells found on a mucous acinus in mixed salivary glands.

What is the function of myoepithelial cells in the salivary glands?

To contract and squeeze secretions out of the acini into the duct system.

Which duct is the first part of the salivary ductal system?

The intercalated duct.

What is the primary function of striated ducts?

To modify the electrolyte composition of saliva, making it hypotonic.

Where are interlobular ducts located?

In the connective tissue septa between the lobes of a salivary gland.

What type of epithelium typically lines the masticatory mucosa?

Keratinized or parakeratinized stratified squamous epithelium.

Where is masticatory mucosa located in the oral cavity?

On the gingiva and the hard palate.

What characterizes the lining mucosa of the oral cavity?

Non-keratinized stratified squamous epithelium found on the lips, cheeks, and soft palate.

What is specialized mucosa?

The mucosa on the dorsal surface of the tongue that contains papillae and taste buds.

Which lingual papillae are the most numerous?

Filiform papillae.

Which lingual papillae are small and mushroom-shaped?

Fungiform papillae.

Where are the circumvallate papillae located?

Arranged in a V-shaped row along the sulcus terminalis at the back of the tongue.

What are Von Ebner's glands?

Serous glands associated with circumvallate papillae that help wash away food particles.

Where are foliate papillae found?

On the lateral margins of the posterior part of the tongue.

What are the three cell types found within a taste bud?

Sensory (taste) cells, supporting (sustentacular) cells, and basal cells.

What is the lamina propria?

The layer of connective tissue supporting the oral epithelium.

What is the most common epithelial type in the oral cavity?

Stratified squamous epithelium.

What is parakeratinization?

A process where the superficial layers of squamous cells are keratinized but retain their nuclei.

What is the vermilion border?

The transition zone between the skin of the lip and the oral mucous membrane.

What structure forms the anterior portion of the roof of the mouth?

The hard palate.

What type of secretion do Von Ebner's glands produce?

A purely serous secretion.