Salivary gland Structure

Question 1

what are the secretary end pieces called

Answer 1

acini

- grape like

Question 2

what surrounds the acini and ducts

Answer 2

connective tissue

Question 3

what is the ben strut of saliva gland

Answer 3

duct

acinus - sec end piece

Question 4

where is saliva made

Answer 4

sec end piece

end of duct

Question 5

what are the diff types of ducts

Answer 5

acinus
interrelated
striated
secretory

Question 6

what is the acinus

Answer 6

production of saliva

push saliva into lumen common with interlaced duct

Question 7

what is the intercalated duct

Answer 7

connection between acinus and the striated duct

Question 8

what is the straietd duct

Answer 8

where modification takes place of the saliva

Question 9

what is the secretary duct

Answer 9

the final destination of saliva before secreted into the mouht

Question 10

what are the two forms of structural units of salivary glans

Answer 10

epi and connective tissue

Question 11

what are the epithelial constituents of the salivary gland

Answer 11

sec end piece - acini
ducts
myoepithelial cells (on acini and ducts)

Question 12

what are the connective tissue constituents of the salivary glands

Answer 12

capsule
septa
surround all epi units
carries blood and nerve supply

Question 13

what is the CT capsule

Answer 13

fibrous estruture holding together

Question 14

what is th CT septa

Answer 14

divides gland into lobes and lobules

Question 15

what are myoepithlial cells

Answer 15

specialise CT cells contractile

Question 16

what are the lobes

Answer 16

largest units sep by thick septa

Question 17

what are the lobules

Answer 17

smaller units
sep by thin septa
contain intercalated and started ducts

Question 18

what kind of solution s formed in the acinus

Answer 18

isotonic fluid

Question 19

what happens to the fluid in the strayed duct

Answer 19

modified an becomes hypotonic fluid

Question 20

what is the parotid sec and where

Answer 20

serous >95%

upper first mola

Question 21

what is the submandibular sec and where

Answer 21

mix/main serous 60%
long duct
across mylohyoid and under tongue frenulum

Question 22

what is the sublingual sec and where

Answer 22

mix/main mucous 75%

excretory duct under tongue frenulum

Question 23

how does minor salivary glands differ from major

Answer 23

smaller and shorter ducts

Question 24

what secretion form minor glands

Answer 24

mucous

Question 25

where are minor glands

Answer 25

labial
buccal
palatal
lingual

Question 26

wha are the lingual (minor) glands

Answer 26

posterior mucous glands
anterior muçus gland
Serous glands of von ebner

Question 27

posterior mucous gland

• location
• purpose

Answer 27

• back tongue behind sulcus terminals
• coat back tongue aid bolus
• protective
• good seal

Question 28

what is the location and purpose of serous glands of von ebner

Answer 28

-next to circus valuate papillae assc in crypts to wash out fattty depo
in front of sulcus terminals
prevent fatty build up on tongue

Question 29

what does the serous secretion of the glands of von ebner contain

Answer 29

lipase – fat breakdown

Question 30

what is the location nd purpose of anterior mucous glands

Answer 30

below tip tongue
prod sticky sec
lines tongue to protect and lubricate

Question 31

what si the innervation of the salivary glands

Answer 31

dual supply

both parasymp and simp

Question 32

what are the two assc nerves for parasymp inv to salivary glands

Answer 32

facial and glossopharyngeal

Question 33

explain the pathway of the facial nerve

Answer 33

sup salivary nuc (medulla)
1 - greater petrosal, sphenopalatine ganglion to palatal glands

2 - chords tympani, submandibular ganglion to submandibular, sublingual, lingual and labial glands

Question 34

explain the pathway of glossopharyngeal

Answer 34

inferior salivary nuc to lesser petrosal to otic ganglion to parotid gland

Question 35

what gives the sympathetic innervation

Answer 35

upper thoracic spinal nerves

Question 36

what si the pathway for the symp

Answer 36

lateral horn 
simp chain 
sup cevrvical ganglion 
trigeminal branches blood vessels 
salivar glands

Question 37

what does innervation of the acini lead to

Answer 37

inc active pumping of ions

inc exocytosis of formed elements

Question 38

what does innervation to ducts to

Answer 38

inc active pumping of ions

Question 39

what does innervation to myoepithelial cells fro

Answer 39

contrcation

Question 40

what does innervation of blood vessels do

Answer 40

vasodilation - para

vasocons - symp

Question 41

when does the development of the parotid gland begin

Answer 41

6 wek i.u.l

Question 42

what are the epithelial origins of salivary glands

Answer 42

parotid and minor - ectoderm
submand, subling - either or end or ectoderm
lingual glands - endoderm

Question 43

what is the developmental origin of CT

Answer 43

ectomesenchyem

mesoderm

Question 44

what is the interaction for dev of salivary glands

Answer 44

epithelial - mesenchymal intercations

Question 45

what does cellular diffenretiation depend on

Answer 45

epi - mesenchyme interactions
nerves - symp
overall growth is parasymp