Salivary Glands Flashcards
What are the 3 major Salivary gland pairs?
Parotid
Submandibular
Sublingual
Where is the Parotid Gland located?
On the masseter muscle posterior to ramus, anterior and inferior to the ear
Where does the parotid gland open into the oral cavity and what is the name of this duct?
At Parotid papilla opposite to max 2nd molars
Stensons Duct
What % of the total salivary volume does the Parotid gland produce?
25%
What is a common viral infection of the parotid gland?
Mumps
What % of the total salivary volume does the submandibular gland produce?
60-65%
Why is the submandibular gland called a mixed gland?
It contains both serous and mucous cells
Why is the submandibular gland secretion more viscous than that of the parotid gland?
Mucous cells - mucins thicken saliva
Where is the submandibular gland located?
Occupies the submandibular fossa - most superficial to the mylohyoid muscle but a small deep lobe wraps around the posterior border
Which duct supplies the oral cavity with saliva from the submandbular gland?
Whartons duct
At the sublingual carnucle at base of lingual frenum
What % of the total salivary volume does the sublingual gland produce?
10% of volume, mostly mixed mucous
What type of cells predominate the sublingual gland?
Mucous
Where is the sublingual gland located and where is the duct open up into the oral cavity?
Located: floor of the mouth, adjacent to the canines, above the mylohyoid, under the tongue.
Ducts: enters at Bartholins duct, exits at carnucles along with whartons duct
What are 3 major differences between the major salivary glands and the minor salivary glands?
Size
Ducts: location, size and number
Number of secretory end units / acini
What is the primary function of the minor salivary glands?
mainly to keep mouth moist (lubrication)
Are minor salivary gland cells mucous, serous, or both?
both, but mostly mucous
Where is the Labial gland located?
labial mucosa
Where is the Buccal gland located?
Buccal mucosa
Where is the Palatine gland located?
soft palate, and posterior lateral of hard palate
Where is the glossopalatine gland located?
anterior pillar and posterior of the hard palate
What are the 3 groups of lingual minor salivary glands and where they located?
Anterior: located at tip of tongue
Glands of Von Ebner: located beneath and around the circumvallate papilla in troughs
Posterior: located around lingual tonsils posterior to 1/3 of the tongue
Approximately how much saliva is secreted in a 24-hour period?
about 2-3 pints
Do normal salivary amounts vary from person to person?
yes
What may cause and increase or decrease in salivary flow?
Decrease: Emotional / fear anxiety
Increase
What are the functions of saliva
lubrication natural rinsing/cleansing aids in digestions increases taste acuity buffers bacterial acids antibacterial properties
Ropey Saliva
- generally due to a higher mucosa content
- persons with excess carbs in diet may have increase mucous
- extreme nervousness may produce less serous and more mucous type
- some people have naturally viscous/mucosa type saliva
Alterations in Saliva
- drugs
- emotional reaction (fear, stress, etc)
- surgery/disease (radiation treatment-destroys gland tissue)
What is Xerostomia? And what are the problems related to oral health with Xerostomia?
-lack of saliva producing ability causing oral dryness
-recall what may cause alterations in salivary flow
-may decrease with age
Problems:
-plaque retention
-predisposition to caries
-problems with denture wearing
-discomfort when eating
What is Sialagove and Antisialagove?
Sialagove: agents that increase or stimulate saliva flow, ex: artificial replacements such as gums, mints, drops, pills
Antisialagove: agents that decrease saliva flow such as tranquilizer sir antidepressants. Sometimes used in surgery and a bodies reaction to stress is a natural Antisialagove
Ranula
Type of mucocele found on FOM. Swelling due to collected mucin from a ruptured salivary gland duct usually caused by local trauma.
Mucocele: collection of mucin that can not escapes the duct. This is caused by trauma (biting cheek/lip).
