Chapter 33 review

T/ The submandibular gland provides about 25% of the resting saliva

False. It provides 60% - 65% of the resting volume

T/F Mumps becomes more painful when he parotid gland decreases it's secretion

False. Mumps is more painful when the glands secrete

T/F The duct of the parotid gland is located opposite of the maxillary 2nd premolar

False. Opposite 2nd maxillary molar

T/F The glands of Von Ebner are found around the base of the fungiform papillae

False.They are found at the base of the circumvallate papillae

Which of the following is not true of minor salivary glands

Fewer duct openings

Decribe the sublingual gland

It is the smallest of the three pairs of glands and contributes only 10% of the total salivary volume. It is composed of mostly mucous cells with some serous cells; therefore, the secretion of this gland is even more viscous than that of the submandibular gland.

Is the glands of Von Ebner Purely serous Mostly Mucous or Mostly Serous

Purely Serous

Is the Parotid Gland Purely serous Mostly Mucous or Mostly Serous

Purely serous

What is the function of saliva, as discussed in this chapter?

Saliva mixes with food to make it easy to swallow. ➢ Begins to break down starches into smaller carbohydrate units ➢ Keeps mucosa in the oral cavity from drying out ➢ Aids in swallowing and speech

what gland is wrapped around the mylohyoid muscle in the neck.

Submandibular gland

The submandibular gland is also called

Submaxillary

the duct leading from the parotid gland travels __________ ______ ___ ______ muscle and pierces the __________ muscle to open into the ____ ______ opposite the _________ ______ molar via _________duct

anteriorly across the master; buccinator; oral cavity;maxillary second ; Stenson's

Why is the submandibular gland called an mixed gland? How many accounts for 2/3s of the cells in this gland?

because it includes both serous and mucous cells. Almost two-thirds of the cells in the submandibular gland are serous.

Stimulation of the sympathetic nervous system does what to the production of saliva?

decreases the flow of blood to the glands and slows the production of saliva.

Salivary glands are classified as what?.

exocrine, merocrine, compound tubuloalveolar, serous, mixed, or mucous

Where can you see the serous demilunes capping the mucous acini in the sublingual gland?

in the anterior floor of the mouth next to mandibular canines.

Salivary glands are innervated by the what system and primarily by the what cranial nerve?

innervated by the autonomic nervous system by cranial nerve VII (CN VII)

Where are the parotid glands located?

on the surface of the masseter muscle, behind the ramus of the mandible on the medial side of the ramus

What plays a role in the control of blood flow, which is important in saliva production.

sympathetic nervous system

All of these glands, whether major or minor, are controlled by what?

the autonomic nervous system.

Where does the submandibular duct extends to? Where is this then located?

the deep part of the glandto the floor of the mouth to open onto a small elevation called the sublingual caruncle. This is located at the base of the lingual frenum,

T/F Most minor salivary glands are purely or mostly mucous in nature.

True

T/F The parasympathetic nervous system controls salivary gland secretion

True.

List the three groups of lingual salivary glands.

-Anterior Lingual Glands-found near the tip of the tongue and open onto the under or ventral surface. -Lingual Glands of von Ebner- located beneath the vallate papillae and open into the trough around the gland. -Posterior Lingual glands- located around the lingual tonsils on the posterior third of the tongue.

What are the minor salivary glands, and where do their ducts open? What type of mucus do they secrete?

-Labial glands-In maxillary and mandibular lips, opening onto the inner surface. These are mixed glands but mostly mucous -Buccal glands- same as labial but on inner cheek -palatine glands- Located in the soft palate and in the posterior and lateral parts of the hard palate. They are purely mucous. -Glossopalatine glands- posterior lateral parts of the palate down into the anterior fold of tissue in front of the palatine tonsil. These are also mucous. -lingual glands are divided into several groups: anterior lingual glands, lingual glands of von Ebner, and posterior lingual glands

What are sublingual glands? Where do they open into? What are they mainly in nature of?

-Sublingual glands are small individual glands that surround the major sublingual gland. -They open into a row of ducts running back along the sublingual fold in the floor of the mouth. -They are mainly mucous in nature.

Do minor salivary glands have a ductal system? why? Where would they be located?

-They do not have a long ductal system; -thus there are many clusters of these glands throughout the mouth, each with its own ductal opening. -They are located labially, buccally, palatally, glossopalatally, and lingually.

What are the classifications and functions of the minor salivary glands

-classifications are size, the number of secretory units or acini, and the number of ducts. -The function of the minor glands is not to produce saliva for mixing with food but, rather, to secrete minor amounts of saliva onto the surface to keep the mucosa moist

Which structure does not have minor salivary glands

Anterior hard palate

The opening for the duct of the parotid gland is in the ________ muscle

Buccinator

Describe the one major duct of the sublingual gland.

It opens with the submandibular duct, and several smaller ducts, which open in a line along the fold of tissue beneath the tongue, known as the sublingual fold.

Describe Lingual Glands of von Ebner .

Lingual glands of von Ebner are pure serous glands located beneath the vallate papillae and open into the trough around the gland. These glands function to wash off the taste buds so that they can perceive new tastes

Is the anterior lingual gland Purely serous Mostly Mucous or Mostly Serous

Mostly mucous

Is the sublingual gland Purely serous Mostly Mucous or Mostly Serous

Mostly mucous

Is the Submandibular Gland Purely serous Mostly Mucous or Mostly Serous

Mostly serous

Mumps

Mumps is a viral infection of the parotid gland, and possibly of other glands, which causes pain during secretion. For a person with mumps, eating is sometimes quite painful because it causes stimulation of the gland.

Where does the duct for the submandibular duct open into the mouth?

Onto the sublingual caruncle

The _________ Gland is located lateral, posterior,and medial to the ramus

Parotid

Although these _____________ glands are the largest of the salivary glands, the pair produces only about __% of the total resting salivary volume.

Parotid 25%

What are the major salivary glands, and where do their ducts open?

Parotid gland- opens into the oral cavity opposite the maxillary second molar via Stenson's duct. The submandibular (submaxillary) gland-onto the sublingual caruncle, at the base of the lingual frenum. The sublingual gland- open along the sublingual fold.

What is the main stimulus for salivation.

The parasympathetic nervous system

Describe Posterior Lingual Glands

The posterior lingual glands are located around the lingual tonsils on the posterior third of the tongue. They are purely mucous in nature.

Why is the soft tissue on the anterior hard palate more keratinized than that on the soft palate?

There are no minor salivary glands in the anterior part of the hard palate to keep it moist

Describe Anterior Lingual Glands

These glands are found near the tip of the tongue and open onto the under or ventral surface. They are mostly mucous in nature.

T/F Major salivary glands are compound tubuloalveolar glands.

True