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Dental IPAP 3-17 > 01 Oral Anatomy > Flashcards

01 Oral Anatomy Flashcards

1
Q

What is the junction between the skin of the face and mucous membrane of the mouth called?

A

Vermilion Border

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2
Q

What type of epithelium is found at the Vermilion Border?

A

Stratified Squamous Epithelium

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3
Q

What is the protein called that is found at the vermilion boarder and how is it different than Keratin?

A

Eleidin

More transparent than Keratin

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4
Q

What is the name of the ectopic sebaceous glands found at the vermilion border of the corners of the mouth and laterally in the cheeks opposite the molar teeth?

A

Fordyce Granules

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5
Q

Name the Types of Oral Mucosa and %’age of total each make up?

A

Masticatory Mucosa: 25%
Lining Mucosa: 60%
Specialized Mucosa: 15%

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6
Q

Which type of mucosa consists of Free, attached, and interdental gingiva and the hard palate?

A

Masticatory Mucosa

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7
Q

Which Mucosa is the primary mucosa to be in contact with food during mastication?

A

Masticatory Mucosa

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8
Q

Which mucosa is usually keratinized/Parakeratinized Stratified Squamous Epithelium?

A

Masticatory Mucosa

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9
Q

Which mucosa covers the floor of the mouth, ventral aspect of tongue, alveolar mucosa, cheeks, lips and soft palate?

A

Lining Mucosa

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10
Q

Which mucosa has no function in mastication and therefore has minimal attrition, usually Non-keratinized Stratified Squamous Epithelium; soft and pliable?

A

Lining Mucosa

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11
Q

Which mucosa covers the dorsal aspect of the tongue?

A

Specialized Mucosa

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12
Q

Which mucosa is composed of cornified/non-cornified epithelial papillae?

A

Specialized Mucosa

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13
Q

Which mucosa has a Lamina Propria that is loose connective tissue w/collagen bundles, Mucous and Serous Glands, and Fordyce Spots?

A

Lining Mucosa

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14
Q

Which mucosa has a Variable Lamina Propria?

A

Masticatory Mucosa

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15
Q

Which gingiva is Not Stippled and Keratinized Stratified Squamous?

A

Free Gingiva

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16
Q

Which gingiva is Stippled and Keratinized Stratified Squamous?

A

Attached Gingiva

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17
Q

What binds the Free Gingiva on the inner margin and separates it from the tooth?

A

Gingival Sulcus

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18
Q

What is the Free Gingiva bound to on its outer margin and apical margin?

A

Outer Margin: Oral Cavity

Apically: Free Gingival Groove

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19
Q

Attached Gingiva is separated from the alveolar mucosa by what?

A

Mucogingival junction (Groove)

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20
Q

The Attached Gingiva is attached to the tooth by what?

A

Junctional epithelium (at the neck of the tooth)

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21
Q

Alveolar Mucosa which is connected to the alveolar bone of the jaw is made up of what type of epithelium?

A

Non-Keratinized Stratified Squamous Epithelium

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22
Q

Name the three parts of the tongue and the two surfaces?

A 
3 Parts
-Oral (Anterior 2/3)
-Pharyngeal (Posterior 1/3)
-Root (Base)
2 Surfaces
-Dorsal Surface 
-Ventral Surface
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23
Q

What is made up of striated muscles covered w/mucous membrane and divided into right and left halves by a median septum?

A

Tongue

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24
Q

What is significant of the Anterior two-thirds of the tongue?

A

Rough Mucosa w/ 4 types of papillae

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25
name the 4 different types of papillae?
Filliform Fungiform Vallate Foliate
26
The posterior one-third has no papillae but the surface is nodular for what reason?
Underlying Lymphatic Nodules | Lingual Tonsils
27
What are the two types of muscle the tongue is composed of?
Intrinsic | Extrinsic
28
Which type of tongue muscle has no bony attachment, confined to the tongue, and consists of longitudinal, transverse, vertical fibers?
Intrinsic Muscles
29
What is the function of the Intrinsic Muscle of the tongue?
Alter the shape of the tongue
30
What muscles are included in the Extrinsic Muscles?
Palatoglossus Genioglossus Hyoglossus Styloglossus
31
What is the function of the Extrinsic Muscles of the tongue?
Help with movements of the tongue
32
The extrinsic muscles connect the tongue to what?
Surrounding Structures: - Soft Palate - Bones (Mandible, Hyoid Bone, Styloid Process)
33
What are the movements of the tongue?
Protrusion Retraction Depression Elevation
34
Which extrinsic muscle is responsible for protrusion of the tongue?
Genioglossus (both sides acting together)
35
Which extrinsic muscle is responsible for retraction of the tongue?
Styloglossus and Hyoglossus (both sides acting together)
36
Which extrinsic muscles are responsible for depression of the tongue?
Hyoglossus and Genioglossus (Both sides acting together)
37
Which extrinsic muscles are responsible for Elevation of the tongue?
Styloglossus and Palatoglossus (both sides acting together)
38
What is the name of the arteries that supply to tongue with blood?
Lingual Artery Branches - Dorsal Lingual Arteries (Posterior tongue) - Deep Lingual Artery (Anterior, communicates with dorsal arteries at the apex)
39
What is the name of the vein that drains the tongue into the internal jugular vein?
Lingual Veins
40
What nerve provides general sensations to the anterior 2/3 of the tongue?
Lingual Nerve
41
What nerve provides special sensation to the anterior 2/3 of the tongue?
Chorda Tympani
42
What nerve provides general and special sensation to the posterior 1/3 of the tongue?
Glossopharyngeal Nerve
43
What nerve provides general and special sensations to the base of the tongue?
Internal Laryngeal Nerve
44
What motor nerve innervates the Intrinsic Muscles?
Hypoglossal Nerve
45
What motor Nerve supplies the extrinsic muscles, except the palatoglossus?
Hypoglossal Nerve
46
What motor nerve innervates the extrinsic muscle palatoglossus?
Vagus Nerve
47
Which Lymph nodes drain the tip of the tongue?
Submental nodes bilaterally and then deep cervical nodes
48
Which Lymph nodes drain the anterior 2/3 of the tongue?
Submandibular unilaterally and then deep cervical nodes
49
Which Lymph nodes drain the Posterior 1/3 of the tongue?
Deep Cervical Nodes (Jugulodigastric)
50
What is the most important function of the tongue?
Articulator for SPEECH Production
51
What is the secondary function of the tongue?
Taste
52
What are the four main tastes?
Bitter, Sour, Salty, and Sweet
53
What are the little red dots, raised bumps on the tongue (particularly at the front)?
Taste Papillae (Fungiform)
54
What are the names of the different papillae?
Fungiform Foliate Circumvallate Non-gustatory filiform
55
What are the collection of cells on these papillae?
Taste buds
56
Which Salivary gland is the largest, produces Serous saliva and ptyalin-starches, and provides 30% of saliva,
Parotid Gland
57
Which salivary gland consists of two lobes (superficial and deep), mixed secretion (mucous and serous) with 60% production, Salivary amylase?
Submandibular
58
The Parotid Gland and Submandibular Gland are attached to which ducts?
Parotid: Parotid Duct Submandibular: Submandibular Duct
59
Which salivary gland is the smallest, produces mostly mucous, 5% of saliva?
Sublingual
60
What is the name of the duct the Sublingual gland drains into?
Rivinus (8-20 ducts)
61
Which cranial nerve innervates the Tear, nasal, and Salivary Glands?
Facial Nerve (VII)
62
Which Cranial Nerve innervates the Parotid Salivary Gland?
Glossopharyngeal Nerve (IX)
63
What forms the floor of the nasal cavity and roof of the oral cavity?
Hard Palate
64
What forms the hard palate?
- Palatine Processes (maxillae front) - Horizontal Plates of Palatine Bones (behind) - Bounded by Alveolar Arches
65
The undersurface of the hard palate is covered by what?
Mucoperiosteum (Shows transverse ridge in anterior part)
66
The soft palate (upper and lower surfaces) are covered by what?
Mucous Membrane
67
The Soft palate is composed of what?
``` Muscle Fibers Aponeurosis Lymphoid Tissue Glands Blood Vessels Nerves ```
68
Name the four Paired Muscles of Mastication?
Masseter Temporalis Medial (Internal) Pterygoid Lateral (External) Pterygoid
69
What is the function of the Masseter Muscle?
Elevates the Mandible superficial (Crushing, grinding, chewing)
70
What is the function of the Temporalis Muscle?
Elevates and retracts the mandible (largest, light chewing force)
71
What is the function of the Medial Pterygoid Muscle?
Elevation, protrusion and lateral shift of the mandible (Heavy Chewing Forces)
72
What is the function of the Lateral Pterygoid Muscle?
Protrusion/retrusion/depression of mandible
73
Premature contracting of the lateral Pterygoid Muscle causes what?
TMJ Shifting
74
Which muscles serve as a contractile "hammock" in which the mandible rests?
Masseter and Medial Pterygoid
75
All Muscles of Mastication are innervated by which nerve?
V3 of the Trigeminal Nerve

Dental IPAP 3-17 (2 decks)

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