D514 Salivary Glands Exam Questions and Answers |
Verified
What type of glands are salivary glands?
-exocrine glands (have a duct)
-includes minor and major salivary glands
3 pairs of major salivary glands
parotid, submandibular, and sublingual glands
Where is the submandibular gland located?
floor of mouth
Where is the parotid gland located?
-in front of the ear
-posterior and superficial to masseter muscle
minor salivary glands
-labial, buccal, lingual, palatal, retromolar
-small aggregates in submucosa (only in lining mucosa)
-throughout the oral cavity (except gingiva and anterior portion of hard palate)
-account for 10% of unstimulated salivary flow
-mostly mucous secreting
What do salivary glands produce and why?
produce saliva which is an essential fluid for normal speech, taste, mastication, swallowing, and
digestion
describe the consistency of saliva produced by the parotid gland
watery
, describe the consistency of saliva produced by the submandibular gland
mucinous
describe the consistency of saliva produced by the sublingual gland
viscous
electrolytes found in saliva
Na, K, Cl, HCO3, Ca, Mg, HPO4, SCN, and F
secretory proteins/peptides found in saliva
amylase, proline-rich proteins, mucins, histatin, cystatin, peroxidase, lysozyme, lactoferrin,
defensins, cathelicidin
immunoglobulins found in saliva
-secretory immunoglobulin A
-immunoglobulins G and M
resting flow rate of the parotid vs submandibular
-parotid has very minimal saliva produced during rest
-submandibular produces much more saliva during rest
stimulated flow rate of the parotid vs submandibular
parotid has higher flow rate of saliva during stimulation than submandibular
protection function of saliva
-washing action that washes away non-adherent bacteria and other debris
-clearance of sugars
-mucins and other glycoproteins provide lubrication that protects lining mucosa from noxious
stimuli, bacterial toxins, and minor trauma
functions of saliva
Verified
What type of glands are salivary glands?
-exocrine glands (have a duct)
-includes minor and major salivary glands
3 pairs of major salivary glands
parotid, submandibular, and sublingual glands
Where is the submandibular gland located?
floor of mouth
Where is the parotid gland located?
-in front of the ear
-posterior and superficial to masseter muscle
minor salivary glands
-labial, buccal, lingual, palatal, retromolar
-small aggregates in submucosa (only in lining mucosa)
-throughout the oral cavity (except gingiva and anterior portion of hard palate)
-account for 10% of unstimulated salivary flow
-mostly mucous secreting
What do salivary glands produce and why?
produce saliva which is an essential fluid for normal speech, taste, mastication, swallowing, and
digestion
describe the consistency of saliva produced by the parotid gland
watery
, describe the consistency of saliva produced by the submandibular gland
mucinous
describe the consistency of saliva produced by the sublingual gland
viscous
electrolytes found in saliva
Na, K, Cl, HCO3, Ca, Mg, HPO4, SCN, and F
secretory proteins/peptides found in saliva
amylase, proline-rich proteins, mucins, histatin, cystatin, peroxidase, lysozyme, lactoferrin,
defensins, cathelicidin
immunoglobulins found in saliva
-secretory immunoglobulin A
-immunoglobulins G and M
resting flow rate of the parotid vs submandibular
-parotid has very minimal saliva produced during rest
-submandibular produces much more saliva during rest
stimulated flow rate of the parotid vs submandibular
parotid has higher flow rate of saliva during stimulation than submandibular
protection function of saliva
-washing action that washes away non-adherent bacteria and other debris
-clearance of sugars
-mucins and other glycoproteins provide lubrication that protects lining mucosa from noxious
stimuli, bacterial toxins, and minor trauma
functions of saliva
