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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. Mixed Dentition
A period of both primary teeth and permeant teeth are in the dentition
Forming organ takes shape and resembles the shape of a bell
Intervates the floor of the mouth the ventral side of the tongue taste buds on the anterior two thirds of the tongue and the lingual gingiva
When cells rapidly increase in number

2. When does the maxillary second molar erupt?
The tip of the chin
Bluish veins that run the length of the tongue
Initiation of the tooth begins
12 years

3. What is the function of the buccle nerve branch?
The connective tissue of the marginal gingiva
Mastication - aids in speech - influence facial structure - chewing surfaces
The area on the crown of the tooth that is nearest the gingival
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars

4. Alveolar Mucosa
A small projection in the middle of the upper lip
Mucosa that covers the alveolar bone
Sharp projection on the under surface of the temporal bone
Portion of the root seen in the oral cavity

5. Function of Styloglossus
Molars
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip
Retracts the tongue and raises the tip of the tongue
Small linear depression

6. Internal Carotid Artery
Upper arch of the teeth
Compact bone plate of the facial and lingual surfaces
Arteries supplying blood to most of the head and the neck
Supplies blood to the brain and the eyes

7. Filiform Papillae
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue
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Divides the crown and the root
Dividing point of a multi-rooted tooth

8. Mandible Arch
Lower arch of the teeth
Mildest form of cleft palate
Opening for the ear
Covers muscle tissue in the posterior portion of the palate

9. Function of mylohyoid
A triangular area located behind the last molar
Assist in depressing the mandible and elevating the tongue
Origin - fixed point - insertion - movable point
Third tooth from the midline

10. Morpho differentiation
No bicuspids/ no 3rd molars
The development of different forms
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx
Intervates the floor of the mouth the ventral side of the tongue taste buds on the anterior two thirds of the tongue and the lingual gingiva

11. Mental Artery
Opening for the ear
Exits the mandibular canal at the mental foramen and supplies the chin and lower lip
Biting edge of the teeth
Extreme variations from the norm

12. Symphysis
A bony projection that separates each socket
The crown of the tooth that is nearest the incisal edge near the anterior tooth
A concave area where two bones of the mandible are fused in the center of the mandible on the external surface
A flap of tissue on the on the buccal mucosa

13. Secondary Dentin
Forms after the completion of the apical foramen
Two vertical extensions of the mandible
The groove below the lower lips that separates the lips from the chin
Draws the hyoid bone superiorly and posteriorly and stabilizes it

14. Mamelons
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface
Three bulges on the incisal edge
Upper arch of the teeth
Pointed or rounded mounds on the crown of the tooth

15. Cleft Uvula
Branches off the inferior alveolar artery before intering the mandibular canal
Platysma - trapezius - sternocleidomastoid
Mildest form of cleft palate
Indented

16. Imbracation Lines
Covers muscle tissue in the posterior portion of the palate
A pocket formed by the soft tissue of cheeks and gingiva
The first predentin that is formed and matures within the tube
Small curved lines that run parellel to the CEJ

17. Palatine Bones
Linear elevation of the tooth
A raised white line that runs parallel to where the teeth meet on the buccal mucosa
The mandibular first premolar
Joined at the midline and are often referred to as the median Palatine suture

18. Cleft Lip
Mandibular central incisors
Forms after the completion of the apical foramen
Separation of the upper lip ( 1 of 1000 live births)
The gingiva in the floor of the gingival sulcus that attaches to the enamel

19. Embrasure
Small grooves noted on some teeth
The development of different tissues
Triangular space in the gingival direction when two adjacent teeth are in contact
Begin at the caruncles on either side of the frenum and run backward to the base of the tongue

20. Pterygoid plexus of the veins
A junction or center of veins that directly or indirectly drain a vast area
A raised white line that runs parallel to where the teeth meet on the buccal mucosa
Tooth emerges from gum tissue and becomes visible
Anterior to the ethmoid bone and part of the orbit (corners of the eye)

21. How many teeth are in the Primary teeth?
Raised vertical folds of tissue on the lateral border of the tongue
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Tributary of the facial vein which connects the facial vein to the pterygoid plexus of the veins
To bulge of curve outward

22. Attrition
A small projection in the middle of the upper lip
Calcified masses of dentin
Wearing away of the incisal or occlusal surfaces of the tooth
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein

23. Which molar is the wisdom tooth
Maxillary third molar
To bulge of curve outward
Secrete saliva to assist in process of digestion
Supplies blood to the roots and periodontal ligaments of the interior teeth

24. Central Incisor
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle
Study of the structure and form of the teeth
Located in a depressed area between the pillars
Middle two teeth in the mouth

25. Dentinal Tubules
Tubules that pass through the entire surface of the dentin
Constricts the nasopharyngeal passage and elevates the larynx
Lift the hyoid bone and assist in opening the mouth
Calcified masses of dentin

26. If a patient receives toxic agents - how long does it take for their sense of taste to return?
Permeante teeth replace the primary teeth
10 days
Fleshy elevation under the tongue
Third tooth from the midline

27. Foliate Papillae
Cells that form cementum
Separates the developing oral cavities from the nasal cavities
Raised vertical folds of tissue on the lateral border of the tongue
Layers of tooth tissue become calcified

28. What are the only permeant teeth that are not succedaneous?
A pocket formed by the soft tissue of cheeks and gingiva
Creates the wall of the dentinal tubule
Molars
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

29. What are the 2 sets of teeth?
Branches off the inferior alveolar artery before intering the mandibular canal
Primary and permanent
Bone that surrounds the root of the tooth
Largest division of the trigeminal nerve

30. Taste Buds
Teeth after cuspids
Oval structures that are located on the dorsal surface of the tongue
The space between the unattached gingiva and the tooth
Supportive fibers that anchor the tooth to the bone

31. Pulpitis
Rounded depression on a tooth
When the tissue becomes inflamed
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue
Act to maintain the gingival integrity of the marginal gingiva

32. Mucogingival Junction
A line of demarcation between the attached gingiva and alveolar mucosa
Calcium salts are deposited into formed tooth
Shaping the tongue during speech - mastication and swallowing
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface

33. Xerostomia
Wearing away of the incisal or occlusal surfaces of the tooth
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth
Cut - tear - and grind food
Excess dryness of the mouth

34. Gingival Sulcus
Occurs in unusual ways and distorted crowns may appear
Depresses the tongue
The space between the unattached gingiva and the tooth
A bony plate covered with keratinized tissue located in the anterior portion of the palate

35. What is the smallest tooth in dentition?
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue
Where the proximal sides of two teeth come together and touch
Mandibular central incisors

36. Histo Differentation
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
Forms into the inner lining of the oral cavitiy and enamel of the teeth
Layers of tooth tissue become calcified
The development of different tissues

37. What are the eight landmarks of the face?
A horseshoe shaped bone lying at the base of the tongue--all the muscles of the tongue and the floor of the mouth attach to this bone
Conception thru the first two weeks
Ala of the nose - naso-labial groove - philtrum - vermilion border - vermilion zone - turbercle of the lip - labial commissures - labio-mental grooves
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth

38. Peg lateral
Pointed elongations of the pulp
4 cusps/ bifurcated
Retracts or depresses the tongue
Peg shaped crown with a smooth surface

39. Succedaneous teeth
Secrete saliva to assist in process of digestion
Drains the maxiallary artery and superficial temporal arteries
Permeante teeth replace the primary teeth
Week 12

40. What are the four major muscles of facial expression
Orbicularis oris - buccinator - mentalis - zygomatic major
A shallow v-shaped depression located below the bottom of the nose and above the lips
Enamel forming cells
Scroll like bones outside the nasal cavaties

41. Anatomical root
Portion covered with cementum
Bicuspids
Arteries supplying blood to most of the head and the neck
Smaller branch that ennervates the soft palate uvula and tonsils

42. Xygote
When cells rapidly increase in number
Pointed elongations of the pulp
Respiratory system - digestive system and glandular organs
Cut - tear - and grind food

43. Median Sulcus
What divides the tongue in half and runs from the base to the tip of the tongue
(free gingiva) surrounds the teeth
2 small raised folds of tissue where the lingual frenum attaches
Bicuspids

44. Perikymata
Found only in multi-rooted teeth and resists rotational forces
Assists in elevating the chin
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth
Small grooves noted on some teeth

45. Stippled
Palatoglossus - palatopharyngeal
Shaping the tongue during speech - mastication and swallowing
Healthy gingival tissue with an orange texture
Cells that form dentin

46. Quadrants
The groove below the lower lips that separates the lips from the chin
Palatoglossus - palatopharyngeal
Occlusal surface of the posterior tooth
Quarters of the teeth

47. Enamel Spindle
Forms after the completion of the apical foramen
Short tubules that seem to crossover to the enamel
Tubules that pass through the entire surface of the dentin
Dividing point of a multi-rooted tooth

48. Circumpulpal Dentin
Origin - fixed point - insertion - movable point
The layer of dentin that surrounds the pulp
Acts as anchors between the alveolar bone and the tooth
Maxillary third molar

49. Enamel Lamellae
Narrow long enamel tuft
The tip of the chin
The area on the crown of the tooth that is nearest the gingival
Extends from the medial corner of the eye to the nasal cavity

50. Pit
Place where the groove comes together or fissures cross
Ala of the nose - naso-labial groove - philtrum - vermilion border - vermilion zone - turbercle of the lip - labial commissures - labio-mental grooves
Outside surface Which is towards the lips
Branches off the inferior alveolar artery before intering the mandibular canal