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Salivary Glands
| Question | Answer |
|---|---|
| Salivary glands are _____ glands that open or secrete into the _____. | Exocrine glands; oral cavity |
| Where are salivary glands found? | in the submucosa of the oral epithelium lining the cheeks, lips, and palate and open into the oral cavity directly or via small ducts. |
| Glandular end pieces in salivary glands that produce saliva. | Acini |
| Slightly viscous (thick) secretion, 99% water. | Mucous acini |
| Thinner and watery secretion which contains digestive enzymes. | Serous acini |
| What is amalyse? Explain function. | Enzyme that splits carbs. Lubricates food and begins digestion. |
| This acini mixes secretion | Seromucous acini |
| What system controls the salivary glands | autonomic nervous system |
| What is the parasympathetic nervous system? | Main stimulus for secretion |
| What is the sympathetic nervous system | contols the blood flow |
| Does the sympathetic nervous system play a role in salivation? | NO |
| How does the production of saliva slow down? | the SNS decreases the blood flow |
| What are the 4 functions of saliva? | Food, Antimicrobial, Teeth, Protection of the Oral mucosa |
| How does the saliva protect the oral mucosa? | It buffers acididic foods and aids in spitting out noxious substances. |
| How does the saliva aid teeth? | It buffers the ph and inhibits remineralization and demineralization. |
| Define xerostomia | dry mouth |
| What causes salivary glands to overstimulate or under stimulate? | medication |
| What can cause xerostomia? | radiation and chemotherapy |
| Describe the 3 major salivary glands | Parotid, submandibular, sublingual |
| Describe the minor salivary glands | labia; and buccal, glossoplate, palatine, lingual |
| What is the largest salivary gland? | parotid gland |
| The pair produces only __ of the total resting salivary volume | 25% |
| The parotid gland produces a thin, watery secretion referred to as _____. | serous secretion |
| The parotid gland opens into the oral cavity opposite the maxillary second molar via ____ | Stenson duct |
| The parotid gland is innervated by...... | CN IX (glossopharyngeal) |
| What is the 2nd largest major salivary gland? | Submandibular |
| Where is the submandibular gland located? | towards the posterior part of the mandible, wrapped around the mylohyoid muscle in the neck. |
| The submandibular gland runs forward in the floor of the mouth and opens onto the ____ through ____ duct | sublingual caruncle; Wharton’s duct |
| What gland is most common to be involved in salivary stone formtation? | Submandibular gland |
| The submandibular gland is innervated by | CN VII (facial) |
| This gland provides 60-65% of the total resting salivary volume | submandibular gland |
| The submandibular gland produces ____ and ____ secretion called mixed gland | serous; mucous |
| What is the smallest of the three major paired salivary gland? | sublingual gland |
| The sublingual gland contributes ___ of total resting salivary volume | 10% |
| Where is the sublingual gland located? | floor of the mouth, next to canines |
| The sublingual glands are innervated by..... | CN VII (Facial) |
| The sublingual gland drains the _____ nodes | submandibular lymph nodes |
| How does the sublingual glands drain? | via numerous small ducts, which open onto the crest of the sublingual fold (Bartholin’s duct and ducts of Rivinus) |
| What type of mucous is in the sublingual gland | mix of serous and mucous fluid, predominantly mucous |
| What is the function of minor salivary glands | to keep mucosa moist |
| Where is the minor salivary glands located? | throughout the entire oral cavity |
| What type of mucous is in the minor salivary glands? | mostly mucous |
| The minor salivary glands are innervated by..... | CN VII (facial) |
| Describe the labial glands. | • Located in the upper and lower lips • Mixed |
| Describe the buccal glands. | • Located on the inner cheek • Mixed |
| Describe the Palatine glands. | • Located in soft palate and posterior and lateral parts of hard palate |
| Describe the glossopalatine glands | • Located from posterior and lateral parts of the palate up to the palatine tonsil • Pure mucous |
| Describe the anterior lingual gland | • Near tip of the tongue opening onto the ventral surface • Mostly mucous |
| Describe the lingual glands of von Ebner | • Located beneath circumvallate papilla and open into a trough around the gland • Function to wash off the taste buds so they can perceive new tastes |
| Describe the posterior lingual gland | • Around the lingual tonsils on posterior third of the tongue • Purely mucous |
| condition where a calcified mass forms within a salivary gland –typically the submandibular gland | Sialolithiasis |
| Syndrome of the immune system which causes dry eyes and mouth | Sjogren’s Syndrome |
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DH_Student
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