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Dental Assisting: Head And Neck Anatomy

Subjects : health-sciences, dentistry

Instructions:

Answer 50 questions in 15 minutes.
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Match each statement with the correct term.
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This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.

1. Alveolar Mucosa
Calcified masses of dentin
Surface towards the midline
Appears to be loosely attached - covering the alveolar bone.
Largest of the branches of the external carotid artery; supplies facial structure

2. Function of Stylohyoid
The disc becomes displaced
Composed of mucosa and surrounds the necks of the teeth
The fixed attachment of a muscle
Draws the hyoid bone superiorly and posteriorly and stabilizes it

3. Enamel Tufts
A bony projection that separates each socket
Depresses the tongue
Small dark brushes
A flap of tissue on the on the buccal mucosa

4. lst and second premolars
Bluish veins that run the length of the tongue
Teeth after cuspids
Tubules that pass through the entire surface of the dentin
Small bony projections surrounding the lingual foramen

5. What is saliva made of?
To lubricate the oral cavity and to moisten food
H20 - mucin - organic salts and digestive enzymes
Drains the facial structures beginning near the eye and descending toward the mandible
Located on the inside of the body of the ramus

6. Triangular Ridge
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface
Pulverizing or chewing surface
(free gingiva) surrounds the teeth
Where the proximal sides of two teeth come together and touch

7. Lobes
A condition where the lower frenum attachment is very short/DDS/frenectomy
Wearing away of the incisal or occlusal surfaces of the tooth
Drains the superficial veins of the face and neck into the subclavian vein
Developmental segment of a tooth

8. Naso Palatine Nerve
Extends interiorly from the pterygopalatine nerve and exits thru the incisive foramen
Natural teeth in position
The internal surface at the center of the mandible
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged

9. Function of Geneoglossus?
Drains the floor of the mouth
Buccal - lingual - and inferior alveolar
Retracts or depresses the tongue
Exits the mandibular canal at the mental foramen and supplies the chin and lower lip

10. Enamel Spindle
Folds of tissue that extend horizontally from the uvula to the base of the tongue
Short tubules that seem to crossover to the enamel
Origin of the tooth
Resist rotational forces and hold teeth in inter-proximal contact

11. Convects
A flap of tissue on the on the buccal mucosa
The development of different tissues
Curve outward
Lower arch of the teeth

12. Function of Digastric
Lift the hyoid bone and assist in opening the mouth
Constricts the nasopharyngeal passage and elevates the larynx
Formed by the fibroblast cells and secures the tooth in the socket
Bone that surrounds the root of the tooth

13. Dental Lamina
Teeth will not erupt in proper position
Growth from the oral epithelium that gives rise to the tooth buds
A shallow v-shaped depression located below the bottom of the nose and above the lips
Canal or passage for fluid

14. Lesser Palatine Nerve
Smaller branch that ennervates the soft palate uvula and tonsils
Innervates the orbicular oculi - the area around the eye - and the area around and behind the zygomatic arch
Follows the length of the body of the mandible past the last tooth and up to the ramus
To bulge of curve outward

15. How much saliva is produced daily?
Duct located on the parotid papilla
1500 millimeters
Resists forces that try to pull the tooth outward
Follows the inside of the ramus and the body of the mandible

16. Mental Protuberance
Where the ectoderm layer matures into the enamel
The tip of the chin
Elevated are of enamel that forms the Mesial and distal borders
A raised area of tissue laying behind the maxillary central incisors on the hard palate

17. Internal Carotid Artery
Rounded depression on a tooth
Located on the inside of the body of the ramus
The tip of the chin
Supplies blood to the brain and the eyes

18. What are the largest and strongest of the mandibular teeth
H20 - mucin - organic salts and digestive enzymes
The mandibular molars
A projection that extends off the back of the soft palate
A pocket formed by the soft tissue of cheeks and gingiva

19. Perikymata
More common in girls--the failure of the palatal shelves to fuse with the primary palate (1 in 2500 births)
The disc becomes displaced
The smallest of the salivary glands located on the floor of the mouth which empty into the mouth thru either the ducts of Rivinus or Bartholin
Small grooves noted on some teeth

20. Cortical Bone
Calcium salts are deposited into formed tooth
Compact bone plate of the facial and lingual surfaces
The slightly raised line extending down the middle of the hard palate
The inner surface of the cheeks

21. Maxillary Arch
Initiation of the tooth begins
Upper arch of the teeth
Two
Lining covers inside of the oral cavity

22. What are the 12 landmarks of the oral cavity?

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23. Periodontal Ligaments
Corners of the mouth
Formed by the fibroblast cells and secures the tooth in the socket
Cells that form dentin
Greater - lesser - naso palatine nerves

24. Function of Hyoglossus
Set of arches found farther in the back of the throat
Distends the ramus - enters the mandibular foramen and bifurcates around the first premolar tooth to form the incisive and the mental arteries
Depresses the tongue
Glands the size of a walnut that lie on the inside of the mandible and empty saliva into the mouth thru the Wharton's duct

25. How is the TMJ supported and what controls their movement?
Ligaments and muscles of mastication
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip
Mastication - aids in speech - influence facial structure - chewing surfaces
A period of both primary teeth and permeant teeth are in the dentition

26. Glenoid Fossa
A dense tissue covered with mucous membrane that can withstand chewing
Two vertical extensions of the mandible
Raised vertical folds of tissue on the lateral border of the tongue
Oval depression of temporal bone in condyloid process

27. Calcification
Layers of tooth tissue become calcified
Excess bone in the middle of the palate
Study of the structure and form of the teeth
The internal surface at the center of the mandible

28. Pterygoid Process
Where the ramus meets the body of the mandible on the outside border
Wings of the sphenoid bone
The groove below the lower lips that separates the lips from the chin
Cells develop into different tissues

29. What are the characteristics of permanent teeth?
Assist in depressing the mandible and elevating the tongue
Enamel is thinner - pulp chamber is smaller -
A faint line going from the ala of the nose to the corner of the mouth
Assists in elevating the chin

30. Hard Palate
Cells develop into different tissues
Genioglossus - hyoglossus - styloglossus - palatoglossus
Excess dryness of the mouth
A bony plate covered with keratinized tissue located in the anterior portion of the palate

31. Stippled
Secrete saliva to assist in process of digestion
Upper arch of the teeth
Healthy gingival tissue with an orange texture
Shaping the tongue during speech - mastication and swallowing

32. Attrition
The deepest point of the vestibule
9 weeks thru birth
Synovial fluid
Wearing away of the incisal or occlusal surfaces of the tooth

33. Cementoblast
Pulls the hyoid bone and the tongue anteriorly
Band of fibrous tissue which attaches bone to bone
Cells that form cementum
Elevated are of enamel that forms the Mesial and distal borders

34. What are the 4 extrinsic muscles of the tongue
The area on the crown of the tooth that is nearest the gingival
Assist in depressing the mandible and elevating the tongue
A duct that empties into the mouth thru the parotid papilla - Parotid gland goes with Stensen's duct
Genioglossus - hyoglossus - styloglossus - palatoglossus

35. Gums
Function to resist rotational forces and tilting
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx
A condition where the lower frenum attachment is very short/DDS/frenectomy
Tissue covering the alveolar processes

36. Free Gingiva
Palatoglossus - palatopharyngeal
Found only in multi-rooted teeth and resists rotational forces
The portion of the tooth that meets the gingiva
4 cusps/ bifurcated

37. Vermilion Zone
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars
12 years
Cluster of tissue that manufactures and secrets fluid
Portion of the lips that are red

38. Primary palate
Maxillary first molar
Separates the developing oral cavities from the nasal cavities
Place where the groove comes together or fissures cross
Mastication - aids in speech - influence facial structure - chewing surfaces

39. Anomalies
Teeth will not erupt in proper position
Study of prenatal growth and the developing process of an individual
Two
Extreme variations from the norm

40. Proliferation
Where the ectoderm layer matures into the enamel
Band of fibrous tissue which attaches bone to bone
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue
The mandibular molars

41. Alveolar Crest
Two cortical bone plates that come together between each tooth
Resist rotational forces and hold teeth in inter-proximal contact
Lower arch of the teeth
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue

42. What are the eight landmarks of the face?
A condition where the lower frenum attachment is very short/DDS/frenectomy
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone
Ala of the nose - naso-labial groove - philtrum - vermilion border - vermilion zone - turbercle of the lip - labial commissures - labio-mental grooves
Molaris meaning millstone

43. Labial-Mental Groove
Palatoglossus - palatopharyngeal
Drains the Pterygoid plexus of the veins
Forms into dentin - cementum and pulp of the teeth
The groove below the lower lips that separates the lips from the chin

44. Maxillary Nerve Branch
Incremental line indicating trauma of birth
Follows the length of the body of the mandible past the last tooth and up to the ramus
The smallest of the salivary glands located on the floor of the mouth which empty into the mouth thru either the ducts of Rivinus or Bartholin
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx

45. Inferior Alveolar Artery
Band of fibrous tissue which attaches bone to bone
Elevates the posterior portion of the tongue and narrows the fauces
Distends the ramus - enters the mandibular foramen and bifurcates around the first premolar tooth to form the incisive and the mental arteries
The deepest point of the vestibule

46. Odontoblast
Quarters of the teeth
Cells that form dentin
Set of arches found farther in the back of the throat
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth

47. Exfoliated
Middle two teeth in the mouth
Shed from the oral cavity
Folds of tissue that extend horizontally from the uvula to the base of the tongue
Mucosa that covers the alveolar bone

48. What is the purpose of saliva?
To lubricate the oral cavity and to moisten food
Portion covered with cementum
Skeletal or soft tissue structures used as reference points in describing locations of anatomical structures or taking measurements
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth

49. Articular Disc
Corners of the mouth
Also known as meniscus it is a dense fibrous connective tissue that is thicker at the ends and attached to the condyle
Disk that acts like a cushion between the temporal bone and the condyloid process
Pulls the hyoid bone and the tongue anteriorly

50. Buccal Mucosa
Branches off the inferior alveolar artery before intering the mandibular canal
Drains the facial structures beginning near the eye and descending toward the mandible
Tissue covering the alveolar processes
The inner surface of the cheeks