Salivary glands II

What is the function of epithelial cells in salivary glands?

Lines the ducts and produces saliva

What is the function of connective tissue in salivary glands?

Surround the epithelium, protects and supports the glands

What is the first part of connective tissue in salivary glands?

Capsule: Surrounds the entire outer portion of the gland

What is the second part of connective tissue in salivary glands?

Septum: Divides the inner portion of the gland into lobes then lobules

What do the capsule and septum carry to the cells?

Blood and nerve supply

What are adenomeres?

Woking part of salivary gland supported by connective tissue

What cells is acini made of?

secretory cells

What does the base of acini rest against?

Surrounding connective tissue

What are the two types of acini?

Mucous or serous

What type of secretory cells form serous acini?

Serous (watery secretion)

What are four functions of serous acini? (L,E,R,D)

• Lubricates food

• Enzymes action starts digestion

• Remove epithelial debris

• Dilute food

What type of secretory cells form mucous acini?

Mucous

What are two features of mucous acini?

• Wider lumen

• Viscous mucin rich secretion

What are functions of mucous acini? (B,P,L)

• Bonus formation

• Protects mouth against frictional abrasion

• Lubrication

What is the function of serous-mucous acini?

Mixed. Serous secretory cell form a serous coating around mucous secretory cell

What is the function of myoepithelial cells?

Embrace the acini secretory cells, contracting and squeezing forcing the saliva out the lumen of ducts

What are the components of acinar fluid?

• Water

• Inorganic ions

• Small molecules & products (mucoproteins and amylase)

What are the three types of ducts found within acinar fluid?

• Intercalated

• Striated

• Excretory

Where does acinar fluid start at?

Intercalated

What type of epithelial cells are intercalated ducts made of?

Single layer of cuboidal epithelium

What is the largest duct in acinar fluid?

Striated

What type of epithelial cells are striated ducts made of?

Single layer of columnar epithelium with basal striations

What do striated ducts aid in?

Saliva modification

What is the terminal duct of acinar fluid?

Excretory

Where does saliva exits into through the excretory into?

Oral cavity

What are the epithelial transitions of excretory cells?

• Pseudostratified columnar

• Stratified cuboidal

• Stratified squamous

Which three arteries supply the ducts of the acinar fluid?

• External carotid

• Facial

• Lingual

What structure do the blood and nerve supplies enter at?

Hilium

What are the two capillary networks of acinar fluid ducts function?

• One for secretory end

• One for ducts