Study Points

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- Review the course material online or in print.
- Complete the course evaluation.
- Review your Transcript to view and print your Certificate of Completion. Your date of completion will be the date (Pacific Time) the course was electronically submitted for credit, with no exceptions. Partial credit is not available.

Which of the following statements about enamel is TRUE?
- Bone is harder than enamel.
- It has an extensive collagen network.
- It is not considered a brittle substance.
- It is composed of 96% mineral deposits.
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Which term is used to describe the loss of enamel through tooth to tooth contact?
- Erosion
- Attrition
- Abrasion
- Abfraction
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Compared to enamel, dentin has
- more type I collagen.
- a lower water content.
- a higher mineral content.
- less of an organic matrix.
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Which of the following is NOT considered a component of the periodontium?
- The tongue
- The cementum
- The periodontal ligament
- The free (marginal) gingiva
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The free gingival tissues are
- not keratinized.
- keratinized on the exterior surface only.
- keratinized on the sulcular epithelium only.
- keratinized on both the exterior surface and the sulcular epithelium.
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The attached gingiva
- lacks stippling.
- has an extensive network of elastic fibers.
- is loosely attached to the underlying alveolar bone.
- is designed for minimal movement and protection of the periodontium.
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Which of the following statements regarding cementum is FALSE?
- It covers the entire root.
- It is not formed throughout life.
- It does not have blood vessels or nerves.
- Cellular cementum occurs in the apical one-third of the root.
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The periodontal ligament
- cannot be seen on radiographs.
- has a width in excess of 2 mm.
- has no diversity in the location of its fibers.
- has type I collagen as its principal constituent.
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Which of the following is associated with the alveolar process?
- The lamina dura
- Compact (cortical) bone
- Spongy (cancellous) bone
- All of the above
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The lamina dura seen on a radiograph is actually which structure?
- The cementum
- The periodontal ligament
- The alveolar bone proper
- The pulp chamber and root canal
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Which of the following is NOT associated with masticatory mucosa?
- A dense network of collagen fibers
- Keratinization of the mucosal surface
- An extensive network of elastic fibers
- A strong union between the mucosa proper and the lamina propria
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Mucosa from which of the following areas is considered masticatory mucosa?
- The hard palate
- The buccal mucosa
- The alveolar mucosa
- The floor of the mouth
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Lining mucosa includes all of the following, EXCEPT:
- The labial mucosa
- The buccal mucosa
- The attached gingiva
- The ventral surface of the tongue
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The specialized mucosa on the dorsum of the tongue
- is a masticatory mucosa.
- does not include any papillae.
- is primarily smooth, with no projections.
- All of the above
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Filiform papillae
- have taste buds.
- occur on the posterior and lateral surface of the tongue.
- are the least abundant papillae on the dorsum of the tongue.
- are affected by benign migratory glossitis (geographic tongue).
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The vermilion zone of the lips
- is not keratinized.
- has a high concentration of mucous glands.
- has a well-developed network of capillary loops.
- has a loose attachment to the underlying musculature.
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Saliva
- is composed of 99.5% water.
- serves as a lubricant for the oral mucosa.
- contains antibacterial substances such as lysozyme and immunoglobulin A.
- All of the above
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Which of the following statements about the salivary glands is TRUE?
- The parotid gland is a mixed gland.
- The sublingual gland is associated with Stensen duct.
- The minor salivary glands produce predominantly serous secretions.
- The submandibular gland produces about 70% of the total salivary volume.
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The ducts of Rivinus are associated with which salivary gland?
- Parotid
- Sublingual
- Submandibular
- Minor salivary glands
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Which salivary gland is most commonly affected by sialolithiasis?
- The parotid gland
- The sublingual gland
- The submandibular gland
- The minor salivary glands
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Back to Course Home
Participation Instructions
- Review the course material online or in print.
- Complete the course evaluation.
- Review your Transcript to view and print your Certificate of Completion. Your date of completion will be the date (Pacific Time) the course was electronically submitted for credit, with no exceptions. Partial credit is not available.

Complete Your CE

A Review of Oral Histology and Physiology

Study Points

Which of the following statements about enamel is TRUE?

Which term is used to describe the loss of enamel through tooth to tooth contact?

Compared to enamel, dentin has

Which of the following is NOT considered a component of the periodontium?

The free gingival tissues are

The attached gingiva

Which of the following statements regarding cementum is FALSE?

The periodontal ligament

Which of the following is associated with the alveolar process?

The lamina dura seen on a radiograph is actually which structure?

Which of the following is NOT associated with masticatory mucosa?

Mucosa from which of the following areas is considered masticatory mucosa?

Lining mucosa includes all of the following, EXCEPT:

The specialized mucosa on the dorsum of the tongue

Filiform papillae

The vermilion zone of the lips

Saliva

Which of the following statements about the salivary glands is TRUE?

The ducts of Rivinus are associated with which salivary gland?

Which salivary gland is most commonly affected by sialolithiasis?