Head & Neck Anatomy Ch. 7 Dental Assisting

Front 1

What are the landmarks of the face?

Back 1

Labial tubercle, labial commissure, vermilion border, vermilion zone, labio-mental groove, naso-labial groove, ala of the nose, & philtrum

Front 2

What are the landmarks of the oral cavity?

Back 2

vestibule, vestibule fornix, labial mucosa, buccal mucosa, parotid papilla, Stensen's duct, linea alba, Fordyce's spots, alveolar mucosa, gingiva, labial frenum, & buccal frenum.

Front 3

Why do I need to know the landmarks of the oral cavity?

Back 3

Aids when taking radiographs, placing topical anesthetic, recording info on charts, & recognizing healthy tissue.

Front 4

Where is the labial mucosa?

Back 4

Inner surface of the lips.

Front 5

Where is the buccal mucosa?

Back 5

Inner surface of the cheeks.

Front 6

What is the pale pink tissue between the teeth and the alveolar mucosa?

Back 6

Gingiva

Front 7

This is located above the gingiva and is loosely attached and is highly vascular giving it a reddish color.

Back 7

Alveolar mucosa

Front 8

This is visible when the lips are pulled out. They are raised lines of the mucosal tissues that extends from the alveolar mucosa through the vestibule to the labial and buccal mucosa.

Back 8

Frenum

Front 9

Where is the palate located?

Back 9

Roof of the mouth.

Front 10

The palate is divided into what type of sections?

Back 10

Hard and soft.

Front 11

Excess bone in the middle of the palate is called what?

Back 11

Torus or Tori (plural)

Front 12

What is the projection that extends off the back of the soft palate?

Back 12

Uvula

Front 13

Set of arches often marked with deep grooves and are often red and inflamed due to infection.

Back 13

Palatine tonsils

Front 14

The tongue has what basic tastes.

Back 14

Sweet, salty, sour, & bitter.

Front 15

Where is the lingual frenum located?

Back 15

Ventral or underside of the tongue to the floor of the mouth.

Front 16

Where is the taste locations of the tongue located?

Back 16

Sweet on the tip, salty of the front sides, sour on the back sides, and bitter in the back middle portion.

Front 17

What is included in the floor of the mouth?

Back 17

Sublingual caruncals, sublingual folds, and sublingual sulcas.

Front 18

Where are the sublingual caruncles?

Back 18

Where the lingual frenum attaches to the floor of the mouth are two small raised folds of the tissue on either side of the frenum.

Front 19

The horseshoe shaped groove that follows the curve of the dental arch on the ventral side of the tongue.

Back 19

Sublingual sulcus

Front 20

What are the three major pairs of the salivary glands?

Back 20

Parotid, submadibular, & sublingual.

Front 21

What is the largest of the salivary glands?

Back 21

Parotid glands

Front 22

The parotid gland empties into the mouth through what duct?

Back 22

Stensen's duct

Front 23

Where are the submandibular glands?

Back 23

They lie on the inside of the mandible in the posterior area.

Front 24

What does saliva consist of?

Back 24

Water, mucin, organic salts, & digestive enzyme ptyalin.

Front 25

What is the function of saliva?

Back 25

To aid in mastication and swallowing.

Front 26

What is excess dryness of the mouth called?

Back 26

Xerostomia

Front 27

Where is the mental foramen located and what is it's function?

Back 27

It's on the inside of the mandible and is an opening for blood vessels and nerves.

Front 28

Where is the maxilla locate?

Back 28

The largest facial bone on the exterior walls of the nasal cavity to form the roof of the mouth.

Front 29

What is the alveolar process?

Back 29

It forms the bone that supports the maxillary and mandibular teeth (located directly above and below the teeth).

Front 30

This is the only movable bone of the face.

Back 30

Mandible

Front 31

What is the triangular area behind the last molar?

Back 31

Retromolar area.

Front 32

The joint that forms the temporal and mandible bones.

Back 32

TMJ Temporomandibular joint.

Front 33

Masseter muscles are responsible for what function?

Back 33

Elevates the jaw.

Front 34

Temporal muscle is responsible for what function?

Back 34

Closes the jaw (fan shaped)

Front 35

What and where is the buccinator muscle?

Back 35

On the alveolar process of the maxilla and mandible. Compresses the cheeks to aid in mastication.

Front 36

This is a sensory nerve that innervates the nose, cheeks, palate, ginigiva, maxillary teeth, maxillary sinus, tonsils, nasopharynx, & other facial structures.

Back 36

Maxillary nerve branch

Front 37

This is the largest division of the trigeminal nerve and is composed of both sensory and motor neurons.

Back 37

Mandibular nerve branch

Front 38

What are the three branches of the mandibular nerve?

Back 38

Buccal, lingual, & inferior alveolar.

Front 39

This nerve passes through the buccinator muscle to the cheek where it innervates the buccal mucosa, buccal gingiva, & the buccal of the mandibular molars

Back 39

Buccal nerve branch

Front 40

This nerve descends from the mandibular nerve to the underside of the tongue and extends from the posterior to the anterior of the mouth.

Back 40

Lingual (tongue) nerve branch

Front 41

This nerve branch descends from the mandibular nerve and runs parallel to the lingual nerve.

Back 41

Inferior alveolar nerve branch

Front 42

Why would a dental assistant need to have knowledge of the nerves of the head and neck?

Back 42

Helps assist in determining where to place topical anesthetic before a local injection is given to the patient.

Front 43

What are the raised lines of the mucosal tissue that extend from the alveolar mucosa to the vestibule called?

Back 43

Frenum

Front 44

The vertical part of the mandible that articulates with the temporal bone is called what?

Back 44

Ramus

Front 45

What muscles are used in mastication?

Back 45

Temporal, masseters, internal pterygoids, & external pterygoids.

Front 46

Which division of the common carotid artery supplies the face and oral cavity?

Back 46

External carotid artery

Front 47

What veins drain the muscles of mastication, sinuses, & palate?

Back 47

Lingual veins

Front 48

The parotid duct is also knows as this?

Back 48

Stensen's duct

Front 49

This muscle opens the jaw by depressing the mandible.

Back 49

Lateral (external) pterygoid

Front 50

The mental foramen, genial tubercles, & the lingual foramen are all found on this.

Back 50

Mandible

Front 51

The main carotid artery supplies blood to most of what locations of the body?

Back 51

Head and neck.