Ch 8: Oral Cavity Flashcards

1
Q

Oral Vestibule?

A

Space between the teeth and the cheek and lips.

Labial Vestibule and Buccal Vestibule

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2
Q

Oral cavity?

A

The space between the teeth and entrance of the throat

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3
Q

Labial frenulum of the labial vestibule?

A

Attachment of lip and mucosa

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4
Q

Which gland Contributes to 5% of the salivary production in the oral cavity?

A

Minor or intrinsic salivary glands

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5
Q

What is the clinical name for the duct of the parotid gland?

A

Stenson’s duct

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6
Q

Why are the sebaceous glands considered ectopic?

A

Sebaceous glands generally empty into the hair follicles of the skin.

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7
Q

Linea alba?

A
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8
Q

Why is the alveolar mucosa darker than the gingiva?

A

The alveolar mucosa is nonkeratinized, which allows vascular structures to be more visible.

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9
Q

Why is cementum not considered part of the root?

A

Although cementum is on the surface of the root, the tissue is a component of the periodontium, which is the connective tissue attachment device that supports and anchors the teeth to their sockets.

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10
Q

What are the three parts of the alveolar process?

A
  1. Inner and outer cortical plates
    1. Dense compact bone
  2. Alveolar bone proper/ cribiform bone
    1. Houses and surrounds root
  3. Spongiosa
    1. Spongy bone
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11
Q

Why does the molar teeth have an abundance of spongy bone between the cortical plates?

A

The amount of spongy bone is related to the function of the teeth. The incisors are the tearing teeth and have little spongy bone. The molars are the grinding teeth and need more spongy bone to support the teeth against occlusal forces.

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12
Q

Difference between Interdental and Interradicular Septa.

A

Interdental septum: Portion of the alveolar bone in between teeth

Interradicular septum: Located in between the roots

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13
Q

Which papillae is most numerous on the tongue?

A

Filliform papillae and contains NO taste buds

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14
Q

What is the difference between the pterygomandibular fold and the raphe?

A

The pterygomandibular FOLD is the mucosa covering the raphe. The raphe is the common connective tissue ATTATCHMENT of the superior constrictor and buccinator muscles.

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15
Q

What are the MOST superficial muscles that are inferior to the mandible?

A

Anterior and posterior bellies of the digastric muscle

(Anterior belly of digastric muscle: located superior to the mylohyoid muscle)

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16
Q

Why are the anterior bellies of the digastric muscle not considered a part of the floor of the mouth?

A

The digastric muscle is considered a muscle of the neck.

17
Q

What is meant by extrinsic muscles & intrinsic muscles of the tongue?

A

Extrinsic: The muscles have their origin outside of the tongue.

Intrinsic: The muscles originate and insert in the tongue.

18
Q

What is the function of the Mylohyoid muscle?

A

Elevates the tongue and floor of the mouth & hyoid bone

19
Q

Innervation of ALL tongue muscles (including extrinsic and intrinsic) is done by which nerve?

A

hypoglossal nerve (XII)

20
Q
A