Salivary Glands- Taylor

Question 0

What type of glands are the salivary glands?

Answer 0

Compound tubuloalveolar glands

Question 1

What does saliva do?

Answer 1

Aids in mastication and digestion

Question 2

What type of cells do all of the salivary glands have?

Answer 2

Myoepithelial cells

Question 3

How much saliva is produced per day?

Answer 3

1 quart

Question 4

What type of cells are contained within interacinar CT?

Answer 4

IgA-secreting plasma cells

Question 5

What do the IgA-secreting cells do

Answer 5

Provide small immune function for mouth

Immunoglobulin A

Question 6

Why do fat cells in salivary glands increase with age?

Answer 6

The secretory acini are replay with adipose tissue

Question 7

Which salivary gland is the largest and most important?

Answer 7

Parotid gland in the cheek

Question 8

What type of acini are within the parotid gland?

Answer 8

100% serous

Question 9

What muscles come in contact with the parotid gland?

Answer 9

Masseter
Sternocleidomastoid
Digastric

Question 10

Where is the isthmus of the parotid gland located?

Answer 10

Between mastoid process and mandibular ramus

Question 11

Saliva secretion pathway:

Answer 11

(Merocrine) lumen in center of acini -> (intralobular) intercalated duct -> (intralobular) striated duct with basal infoldings that allow for mito to be there, changing chemistry of saliva via ion transport -> excretory duct (interlobular) -> main duct -> secretion to oral cavity

Question 12

Where does the main duct of the parotid gland run?

Answer 12

Over the masseter muscle -> buccinator -> enters oral cavity opposite the second upper molar

Question 13

Where do the 5 major branches of the facial nerve originate?

Answer 13

In the parotid gland

Parotid tumors cann sometimes cause paralysis on same side

Question 14

What type of conjunctivitis results in swollen lymph nodes?

Answer 14

Viral

Question 15

Which salivary gland is second largest?

Answer 15

Submandibular in the lateral mandible

Question 16

What type of acini are assoc with the submandibular gland?

Answer 16

Mostly serous
Some mucous acini
Some mucous acini with demilunes

Question 17

What muscles contact the submandibular gland?

Answer 17

Mylohyoid muscle

Question 18

Where does the submandibular duct end?

Answer 18

Medially at the sublingual papilla (center of the underside of the tongue)

Question 19

Which salivary gland is smallest?

Answer 19

Sublingual gland in anterior portion of mandible

Question 20

What type of acini are assoc with sublingual glands?

Answer 20

Mostly mucous

Question 21

Which salivary gland has a number of orifices to secrete it’s material?

Answer 21

Sublingual (at sublingual fold)

Question 22

(Parotid) Where are the pregang para cell bodies located?

Answer 22

Inferior salivatory nucleus

Question 23

(Parotid) Where do the pregang para axons emerge?

Answer 23

Medulla oblongata in CN9

Question 24

(Parotid) Where do the pregang para axons go after CN9?

Answer 24

Tympanic nerve -> tympanic plexus -> lesser petrosal nerve -> optic ganglion

Question 25

(Parotid) Where are the postganglionic para cell bodies located?

Answer 25

Otic gang

Question 26

(Parotid) Where do postganglionic para axons go?

Answer 26

CN5.3 -> auriculotemporal nerve which passes through parotid

Question 27

(Parotid) Where are pregang symp cell bodies located?

Answer 27

T1-T2

Question 28

(Parotid) Where do pregang symp end?

Answer 28

Superior cervical ganglion

Question 29

(Parotid) What do the postganglionic symp do?

Answer 29

Form a plexus around the external carotid artery

Question 30

Where are the sub pregang para cell bodies located?

Answer 30

Superior salivatory nucleus of the pons

Question 31

After emerging from the pons, what do the sub pregang para axons do?

Answer 31

Within the nervus intermedius root of CN7 -> internal acoustic meatus -> geniculate ganglion -> chords tympani -> lingual nerve of CN5.3 -> submandibular ganglion

Question 32

Where are the sub postganglionic para cell bodies located?

Answer 32

Submandibular ganglion

Question 33

Where do the postganglionic para axons travel from the submandibular ganglion?

Answer 33

To the submandibular gland

Some join with the lingual nerve -> sublingual gland

Question 34

Where are the sub pregang sym cell bodies?

Answer 34

T1-T2 and end in superior cervical ganglion

Question 35

What do the sub postganglionic symp do?

Answer 35

Form plexus around external carotid artery -> follow facial and lingual arteries to the glands

Question 36

Where are the lac pregang para cell bodies located?

Answer 36

Lacrimal nucleus, a subnucleus of the superior salivatory nucleus

Question 37

Where do the lac pregang para axons travel?

Answer 37

Nervus intermedius -> internal acoustic meatus -> pass thru geniculate ganglion -> greater petrosal -> foramen lacerum -> Vidian nerve thru pterygoid canal -> pterygopalatine ganglion

Question 38

What forms the nerve of the pterygoid canal of the sphenoid bone?

Answer 38

Greater petrosal nerve and the deep petrosal nerve of the carotid plexus

Question 39

Where are the lac postganglionic para cell bodies located?

Answer 39

Pterygopalatine ganglion

Question 40

Classical postganglionic para lacrimal pathway:

Answer 40

Pp ganglion -> ganglionic branches -> join CN5.2 -> branch in zygomatic nerve -> zygomaticotemporal nerve -> communicating branch -> lacrimal nerve

Question 41

Modern postganglionic para lacrimal pathway:

Answer 41

Pp ganglion -> orbital branches -> retro-orbital nerve plexus -> branches to gland

Question 42

Main difference between classic and modern lacrimal postganglionic para axons:

Answer 42

Modern pathway doesn’t think there are specific nerve branches, just there are nerves interconnected behind the eye

Question 43

Where are the lacrimal pregang symp cell bodies located?

Answer 43

T1-T2 ending in superior cervical ganglion

Question 44

What do the lacrimal postganglionic symp do?

Answer 44

Forms a plexus around the internal carotid artery that gives off deep petrosal nerve -> Vidian nerve -> pass thru Pp ganglion