Chapter 11-1a Head Neck structure Flashcards
What is a gland
a structure that produces secretion necessary for normal body functioning
What is an exocrine gland
gland having a duct associated with it
What is a duct
passageway that allows the glandular secretion to be emptied directly into the location where secretion is to be used
What is an endocrine gland
ductless gland with secretions conveyed directly into blood; carried to distant location
What does salivary glands produce
saliva; spit
What does saliva contain
minerals, electrolytes, proteins buffers, enzymes, immunoglobulins (secretory IgA), and metabolic wastes
What system is the secretion of the salivary gland controlled
automatic nervous system
What does the saliva do for the oral mucosa
lubricates and cleanses
What does saliva help with and serve as?
Helps with digestion of food enzymatic activity
Serves as buffer by its bicarbonate and phosphate ions by salivary proteins and byproducts
What is saliva involved in?
antibacterial activity through lysozyme content
Saliva helps maintain… because of what?
tooth integrity because it is involve in posteruptive maturation of enamel
Due to its salivary pellicle formation what is salivary glands also involved in?
First step in dental biofilm formation
Salivary glad is involved in the first steps of what
dental biofilm formation
What does salivary glands supply
minerals for supragingival calculus formation
What is supragingival calculus
calculus that you can see
What type of glands is salivary glands
exocrine glands with associated ducts
Major salivary glands have/do not have ducts
have
Minor salivary glands have/do not have ducts
do not have
What is the connective tissue of the salivary gland divided into?
capsule and septa
Each septum (septa) divides the glands into…
lobes and lobules
Epithelial cells that produce saliva are what type of cells
secretory cells
Mucous cells produce…
mucous product
our cells produce…
serous products with proteins and glycoproteins
Combination of secretory cells can produce…
mixed secretory product
Where are secretory cells found
acinus (acini)
Where are myoepithelial cells located and what does it do?
surface of acini; facilitate the flow of saliva/aid in pushing saliva out of gland
Ductal system of salivary glands consists of…
hollow tubes connected to acinus, and then with other ducts from inner to outer parts of gland
What part is the intercalated duct associated with
terminak part of gland
What type of cells is the hollow tube lined with
single layer of cuboidal epithelial cells
Striated duct is connected to…
intercalated ducts in the lobules of the gland
What type of cells is the striated duct consist of
single layer of columnar epithelial cells
What is the final part of the salivary gland ductal system
excretory duct/secretory duct
What type of cells is the excretory duct lined wiht
variety of epithelial cells
Three major salivary glands
- parotoid
- submandibular
- sublingual glands
What is the largest major salivary gland
capsulated paratoid
Capsulated parotid provides ___% of total salivary volume
25
Where does the paratoid salivary gland occupy
the parotoid fascial space
Parotoid gland has..
serous acini
What is the parotid duct
duct assoiciated with parotid gland
Parotid duct aka…
Stensen duct
Parotid duct opens at…
the parotid papilla
What is the 2nd largest major salivary gland
capsulated submandibular salivary gland
What % of salivary volume does the capsulated submandibular salivary gland
60-65
Where does the submandibular salivary gland occupy?
Occupies the submandibular fossa in submandibular fascial space
Where does the submandibular salivary gland lie
beneath the mandible in submandibular fossa, posterior to the sublingual salivary gland
What type of acini does the submandibular salivary gland have
serous and mucous acini (mainly serous)
what duct is associated with the submandibular salivary gland
submandibular duct
Submandibular duct aka…
Wharton duct
Characteristics of sublingual salivary gland
Smallest
Most diffuse
only major salivary gland without a capsule
Sublingual salivary gland provides ___% of total salivary volume
10
Where is the sublingual salivary gland located
sublingual fossa in the sublingual fascial space at floor of mouth
Sublingual gland is anterior to what gland
submandibular gland
Sublingual gland has _____ acini
mucous
Sublingual gland secretes…
predominately viscous mucous component
how is sublingual duct formed
short ducts associated with sublingual gland combine
sublingual duct aka…
Bartholin duct
