Salivary Glands Flashcards
Salivary glands. Exocrine or endocrine
Why?
-exocrine (use ducts)
How much saliva do salivary glands secrete
0.75 to 1.5 L per day
What happens to salivary secretion when we are asleep and why?
salivary secretion drops when we are asleep because PNS activity drops
the glands are divided into—— which are divided into numerous—- which are separated by——-
lobes
lobules
septa
septa is made up of supportive—- , accommodates the———, and large interlobular———
connective tissue stroma
blood vessels, nerves
excretory ducts
each tubular lobules contain___ and———
acini
branching ducts
the acini is the—— unit and the branching duct is the——- unit
secretory
excretory
——ducts unite to form—— ducts that unite to form— ducts that unit to form a—— duct
intercalated
intralobular
interlobular
main
the cells of the acini appear—— in sections with their apex facing the—— and their base resting on a——
triangular
lumen
basement membrane
the acini can either be——- which produces——- fluid or—- which produces a—— fluid , or——
serous; watery
mucous; thick
mixed
cytoplasmic contents of serous and mucous acini are the same.
T/F
F. They vary
serous cells have a——- nucleus while that of mucous is—— against the base of the cells
rounded
flattened
secretion of serous cells are—- while that of mucous cells are rich in a ———stored as——
proteinaceous
glycoprotein product
mucinogen granules
List the 3 types of BRANCHING DUCTS
intercalated, secretory, excretory
Secretory duct is also called ——-
striated
INTERCALATED are—— ducts continuous with the——-
-lined with ———cells
slender
terminal acini
flat spindle shaped
How do intercalated and secretory ducts alter salivary secretion
INTERCALATED-secrete bicarbonate and absorb chloride ions
SECRETORY: reabsorb sodium and secrete potassium
INTERCALATED duct, intralobular or interlobular duct
intralobular duct
SECRETORY ducts are lined by—- to—— cells
cuboidal; columnar
Secretory ducts have basal straitions due to———
infolding of the basal membranes
Secretory duct, intralobular or interlobular duct
Intralobular
Largest branching duct is the ——-?
Excretory duct
EXCRETORY Ducts are lined with ——-epithelium
peudostratified ciliated
Effect of excretory ducts on salivary contents?
doesn’t change the salivary contents
Excretory duct, intralobular or interlobular duct
Interlobular
MYOEPITHELIAL CELLS aka——-
basket cells
MYOEPITHELIAL CELLS are located between ——-and—— of secretory cells
basement membrane
plasma membrane
MYOEPITHELIAL CELLS are also found in—— part of the—— system
proximal
ductal
Basket cells posses many—— filaments which—— the secretory cells and move their product towards the——
actin-containing
squeeze on
excretory ducts
List the 2 TYPES OF SALIVARY GLANDS
And their nicknames
(1) major/macroscopic/extrinsic salivary glands
(2) minor/microscopic/intrinsic salivary glands
extrinsic salivary glands lie—- the oral cavity and empty their secretions—— the oral cavity
outside
into
extrinsic salivary glands develop from—— and stay connected to it by——
oral mucosa
small ducts
3 examples of extrinsic salivary glands
parotid,submandibular, sublingual
intrinsic salivary glands are distributed—- the oral cavity
within
PAROTID GLAND is located—— to the ear; wrapped around the——-
anterior
mandibular ramus
——- is the largest of the major salivary glands ands weighs ——-
Parotid gland
25g
Parotid glands produce—— saliva
serous
Parotid gland can be palpated by———
feeling infront of the ear, towards the cheek to below the angle of the mandible
Which of the major salivary glands are encapsulated or not, endodermal or ecto
Parotid- encapsulated;ectodermal
Submandibular-encapsulated; endodermal
Sublingual-non-encapsulated; endodermal
Shape of each major salivary gland
Parotid- pyramid
Submandibular- J shape
Sublingual- almond shape
List the 3 main structures that pass through the parotid gland. From superficial to deep
Facial nerve; retromandibular vein; ECA
PAROTID GLAND is divided into—- parts by the—— that comes from the—— foramen . Medial to the thing that divides the gland is the—— lobe and lateral to it is the——- lobe
2
facial nerve
stylomastoid
deep
superficial
PAROTID DUCT aka——
stensen’s duct
PAROTID DUCT emerges from ——of the gland, superficial to—— muscle then pierces the——,—- , and—— to open into the mouth after piercing the buccal mucosa
anterior border
masseter
buccal pad of fat; buccopharyngeal fascia; buccinator muscle
PAROTID DUCT usually opens—- the——-
opposite
maxillary/upper second molar
Arterial supply of the parotid gland is ——,——, and_____
posterior auricular
superficial temporal
maxillary
Venous drainage of the parotid gland is by ——- and ——
retromandibular and external jugular vein
Parotid gland is innervated by ——-
Submandibular gland is innervated by ——-
Sublingual gland is innervated by —-
lesser petrosal nerve
chorda tympani nerve
chorda tympani nerve
THE SUBMANDIBULAR GLAND is located at the—- of the mandible ;—— to the digastric muscles
angle
superior
THE SUBMANDIBULAR GLAND secretes ——- saliva
both mucous and serous cells
THE SUBMANDIBULAR GLAND is divided into—— and—— lobes seperated by——
superficial
deep
the mylohyoid muscle
the—— lobe takes most of the submandibular gland
superficial
the 2 lobes of the submandibular gland communicate around the——-
posterior border of mylohyoid
Relationship between the sublingual and —— lobe of the submandibular gland
Deep lobe
Sublingual is anterior to it
Rank the major salivary glands in order of how much they secrete
Submandibular-70%
Parotid-20%
Sublingual-3 to 5%
SUBMANDIBULAR DUCT aka——
Wharton’s duct
Which has thicker walls. Parotid duct or submandibular duct
Parotid duct
SUBMANDIBULAR DUCT joins the—— duct of the sublingual gland to open into the oral cavity on each side of the lingual frenulum
largest
Sympathetic stimulation of salivary glands produces —- saliva while parasympathetic stimulation of salivary glands produces —- saliva
Sympa-mucous
Para- serous
Blood supply of the submandibular gland Is from the—— and—- arteries
From—- and—— arteries respectively
-drainage is by——— and—— veins
sublingual; submental
lingual; facial
common facial; lingual
SUBLINGUAL GLANDS is located—— to submandibular gland;—— the tongue
anterior
below
SUBLINGUAL GLANDS secrete___ saliva
both mucous and serous
SUBLINGUAL GLAND lies in the floor of the mouth between the—— and the——
mucus membrane
mylohyoid muscle.
SUBLINGUAL Gland is drained bby——- called the ducts of——
-the largest of all the sublingual ducts( of—— )joins the—— duct
8-20 excretory ducts
rivinus
bartholin
submandibular
MINOR SALIVARY GLANDS are found in—— of different parts of the oral cavity like the—-,——, and extensively in other areas
submucosa
lips; inner cheek area (buccal mucosa)
ranula
- is a—— in the floor of mouth
- arises from—— salivary gland.
- Some times it may arise from accessory salivary glands, called glands of—— and—, present in the floor of mouth.
- The swelling is—-,—- in color, and——.
- It looks like the belly of frog (——), hence the name ranula.
large mucus retention cyst
sublingual
Blandin; Nuhn
soft; bluish; transilluminates
Rana hexadactyla
formation of calculus in the submandibular gland and its duct is more common than in the—— duct for two reasons:
(a) Its secretion is——.
(b) Its duct takes a ——course, which hampers its smooth drainage (against gravity) into the floor of the mouth.
Parotid
more viscid
tortuous and upward
pleomorphic adenoma
- )——tumor of the—— gland
- called —— tumour because of its ——-appearance
- After many years of ——growth, it may undergo a—— change.
slow growing painless benign
parotid
mixed parotid
mixed histological
slow benign
malignant
