8/8/2019 General Architecture

1/15

IRNA NUR SYAFINAZ

BT ALI ZAINI

08 2 25

8/8/2019 General Architecture

2/15

SALIVARY GLANDS

parenchyma

stroma

8/8/2019 General Architecture

3/15

StromaComprisestheconnectivetissuecomponentsthatsupportand

conveysthevascularandnervessupply .

Functioningmechanically,theyprovideamatrixthat

connectsand bindsthecellsandorgansandultimately

givessupporttothe body.

8/8/2019 General Architecture

4/15

8/8/2019 General Architecture

5/15

8/8/2019 General Architecture

6/15

1 - interlobularexcretoryduct

2 - interlobularconnectivetissuesepta

PAROTID SALIVARY GLAND

interlobular excretory duct

8/8/2019 General Architecture

7/15

PAROTID SALIVARY GLAND

8/8/2019 General Architecture

8/15

Parenchyma

Theparenchyma ofanorganconsistsofthosecellswhich

carryoutthespecific functionoftheorganandwhichusually

comprisethe bulkoftheorgan.

Theparenchymaincludethesecretory unitsstructureand

ductsystemofthesalivaryglands

Secretory units

yAcinus unitstructure formedofgroupsofsecretory cells

surroundingalumenandrestingona basalmembrane

yThecellsareseparated fromthe basallamina bymodified

epithelialcellcalledthebasketcellorthemyoepithelial cell

8/8/2019 General Architecture

9/15

submandibular glandparenchyma

bv = bloodvesseldem =serousdemilune

aroundmucousacinus

muc =mucousacini

SD =secretory duct

ser =serousacini

8/8/2019 General Architecture

10/15

Myoepithelial cellFlattened, branchedcells

Manyprocessesthatgrasptheacinus likeabasket

Thecytoplasmabundantinactin andmyosinfilaments

Mediatecontractionandsqueezetheacinar secretionintothe

duct

They surroundalsothecellliningtheductsystemparticularlythe

intercalatedducts.

Themyoepithelial cellsacquireaspindleshapeandlieparallelto

thelengthoftheduct.

8/8/2019 General Architecture

11/15

1 - mucouspartofmixedsecretory unit

2 - serouspart (serousdemilune)ofmixedsecretory unit

3 - seroussecretory unit

4 - mucoussecretory unit5 - myoepithelial cells

SUBLINGUAL SALIVARY GLAND

8/8/2019 General Architecture

12/15

8/8/2019 General Architecture

13/15

PAROTID SALIVARY GLAND

1 - seroussecretory units (acini)

2 - intercalatedexcretoryduct

3 - striatedexcretoryduct

4 - interlobularexcretoryduct5 - interlobularconnectivetissuesepta

8/8/2019 General Architecture

14/15

References

1. http://www.siumed.edu/~dking2/erg/glands.htm#saliv

2. http://www.histol.chuvashia.com/atlas-en/digestive-04-en.htm

3. http://www.courseweb.uottawa.ca/medicine-

histology/english/Gastrointestinal/Salivary.htm#Figure%206

8/8/2019 General Architecture

15/15