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Dental Assisting: Head And Neck Anatomy

Subjects : health-sciences, dentistry

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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. Marginal Ridges
Hinge motion and gliding movement
Bifurcated/ 5 cusps
Elevated are of enamel that forms the Mesial and distal borders
Extends from the mucogingival junction to the gingival groove

2. Imbritation Lines of Von Eboner
Origin of the tooth
Linear elevation of the tooth
Lower arch of the teeth
Stained growth rings in dentin

3. Nasmyths Membrane
A period of both primary teeth and permeant teeth are in the dentition
Two vertical extensions of the mandible
Covering over the enamel that is left over from the epithelium ameloblasts
The portion of the tooth that meets the gingiva

4. Oblique Fiber Group
Extends from the mucogingival junction to the gingival groove
Initiation of the tooth begins
Resists intrusive forces that try to push the tooth inwards
Cells develop into different tissues

5. Marginal GIngiva
Layers of tooth tissue become calcified
Slight ridges on the cervical third of certain teeth that extend mesiodistally
(free gingiva) surrounds the teeth
The portion of the tooth that meets the gingiva

6. Cyto differentiation
Used to pulverize food
The development of different cells
Band of fibrous tissue which attaches bone to bone
Demonstrates a disturbance in the body metabolism

7. Anterior Alveolar Nerve
Intervates the anterior maxillary sinus - gingiva - cuspids - laterals - and central incisors
Small curved lines that run parellel to the CEJ
Primary and permanent
Resulting from an imperfect union where the lobes come together

8. Function of Styloglossus
Follows the length of the body of the mandible past the last tooth and up to the ramus
Retracts the tongue and raises the tip of the tongue
When cells rapidly increase in number
The inner surface of the cheeks

9. Circumpulpal Dentin
Ligaments and muscles of mastication
A period of both primary teeth and permeant teeth are in the dentition
The layer of dentin that surrounds the pulp
Tubules that pass through the entire surface of the dentin

10. Infraorbital Foramen
Opening in the mouth below the orbit on the maxillary bone
Forming organ takes shape and resembles the shape of a bell
Draws down the mandible and corners of the mouth
The development of different forms

11. What are the 4 extrinsic muscles of the tongue
Wings of the sphenoid bone
Three cusps/ trifurcated
Genioglossus - hyoglossus - styloglossus - palatoglossus
Functions the same as the alveolar cfg; originate in alveolar bone

12. Saliva
Chewing and swallowing food
Scroll like bones outside the nasal cavaties
Substances between cells
Clear fluid secreted by the salivary and mucous glands throughout the mouth

13. Sulingual Folds
Bluish veins that run the length of the tongue
Largest facial bone with two sections joined at the median suture
Begin at the caruncles on either side of the frenum and run backward to the base of the tongue
Located on the inside of the body of the ramus

14. What are the characteristics of permanent teeth?
Extends interiorly from the pterygopalatine nerve and exits thru the incisive foramen
Enamel is thinner - pulp chamber is smaller -
Mastication - aids in speech - influence facial structure - chewing surfaces
The connective tissue of the marginal gingiva

15. What kind of root does the maxillary first molar have?
Triferacated
Incremental line indicating trauma of birth
Excess bone in the middle of the palate
Functions the same as the alveolar cfg; originate in alveolar bone

16. Mesoderm
Small raised projections where taste buds are located
Portion of the root seen in the oral cavity
Forms into dentin - cementum and pulp of the teeth
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip

17. Fetal Alcohol Syndrome symptons
Portion covered with cementum
Primary and permanent
What divides the tongue in half and runs from the base to the tip of the tongue
Small head - low nasal bridge - thin upper lip - small mandible

18. Labial Commissures
Tissue fluid surrounding the cell membrane of the odontoblast
The corners of the mouth where the top and bottom lip meet
Arteries supplying blood to most of the head and the neck
Trigeminal - facial - glossopharyngeal - hypoglossal

19. Lingual Vein
Drains the floor of the mouth
Fifth cusp located on the mesial surface lingual surface of maxillary first molars
Arteries supplying blood to most of the head and the neck
A shallow v-shaped depression located below the bottom of the nose and above the lips

20. What is the most common problem with TMJ
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
A pocket formed by the soft tissue of cheeks and gingiva
The disc becomes displaced
A shallow v-shaped depression located below the bottom of the nose and above the lips

21. Gingiva
Shed from the oral cavity
A shallow v-shaped depression located below the bottom of the nose and above the lips
Synovial fluid
A dense tissue covered with mucous membrane that can withstand chewing

22. Dentoperiosteal Fiber Groups
Duct located on the parotid papilla
Calcified masses of dentin
Supportive fibers that anchor the tooth to the bone
Upper arch of the teeth

23. Function of Trapezius
Greater - lesser - naso palatine nerves
The internal surface at the center of the mandible
Moves the head backward and laterally
Assists in elevating the chin

24. Odontogenesis
Origin of the tooth
A triangular area located behind the last molar
Bicuspids
Resists forces that try to pull the tooth outward

25. Intertubular Dentin
Occlusal surface of the posterior tooth
Primitive mouth
Oval depression of temporal bone in condyloid process
Dentin found between the tubules

26. What are the 2 sets of teeth?
Radiates from the developmental groove
Primary and permanent
Anterior to the ethmoid bone and part of the orbit (corners of the eye)
Cluster of tissue that manufactures and secrets fluid

27. Lingual Foramen
Covers muscle tissue in the posterior portion of the palate
32
(free gingiva) surrounds the teeth
The internal surface at the center of the mandible

28. Stomedeum
The development of different cells
Primitive mouth
The layer of dentin that surrounds the pulp
The outer edge of the nostril

29. Middle Superior Alveolar Nerve
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids
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
Of or pertaining to area surrounding naval cavity
Draws down the mandible and corners of the mouth

30. Stenson's Duct
Compact bone plate of the facial and lingual surfaces
Composed of mucosa and surrounds the necks of the teeth
Duct located on the parotid papilla
Elevates the posterior portion of the tongue and narrows the fauces

31. Xygote
When cells rapidly increase in number
Pulverizing or chewing surface
Draws down the mandible and corners of the mouth
To bulge of curve outward

32. Cusps
Small raised projections where taste buds are located
Pointed or rounded mounds on the crown of the tooth
Intervating the anterior teeth and the labial gingiva
Found only in multi-rooted teeth and resists rotational forces

33. Cervical Third
Covering over the enamel that is left over from the epithelium ameloblasts
2 small raised folds of tissue where the lingual frenum attaches
Begin at the caruncles on either side of the frenum and run backward to the base of the tongue
The area on the crown of the tooth that is nearest the gingival

34. Lingual Nerve Branch
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
Drains the maxiallary artery and superficial temporal arteries
Occlusal surface of the posterior tooth
Elevated area fo enamel that extends obliquely across the occlusal surface of the tooth

35. Gingival Sulcus
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth
The space between the unattached gingiva and the tooth
Drains the facial structures beginning near the eye and descending toward the mandible
Substances between cells

36. Central Incisor
Middle two teeth in the mouth
Cut - tear - and grind food
The development of different tissues
Rounded depression on a tooth

37. TMJ bones are bathed In what solution?
Intervates the anterior maxillary sinus - gingiva - cuspids - laterals - and central incisors
Synovial fluid
The fixed attachment of a muscle
6 months/3years

38. External Oblique Ridge
Peg shaped crown with a smooth surface
Follows the length of the body of the mandible past the last tooth and up to the ramus
Largest division of the trigeminal nerve
To bulge of curve outward

39. Attrition
Wearing away of the incisal or occlusal surfaces of the tooth
The bone that separates the root on a tooth
Occurs in unusual ways and distorted crowns may appear
4th week

40. Alveolus
Excess dryness of the mouth
Orbicularis oris - buccinator - mentalis - zygomatic major
What divides the tongue in half and runs from the base to the tip of the tongue
Bone that surrounds the root of the tooth

41. Apposition
Pointed elongations of the pulp
Calcium salts are deposited into formed tooth
Small raised projections where taste buds are located
The internal surface at the center of the mandible

42. Develop Mental Groove
Follows the inside of the ramus and the body of the mandible
Formed by the uniting of lobes during development of crown
Covers muscle tissue in the posterior portion of the palate
Calcium salts are deposited into formed tooth

43. Lingual Veins
Found near the cementoenamel junction
Covering over the enamel that is left over from the epithelium ameloblasts
Bluish veins that run the length of the tongue
The groove below the lower lips that separates the lips from the chin

44. Maxilla
Draws down the mandible and corners of the mouth
Largest facial bone with two sections joined at the median suture
Maxillary third molar
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids

45. Fetus
A line of demarcation between the attached gingiva and alveolar mucosa
Inside surface Which is towards the tongue - on anterior teeth
An overgrowth of the gingival tissue
9 weeks thru birth

46. Meniscus
Disk that acts like a cushion between the temporal bone and the condyloid process
Resulting from an imperfect union where the lobes come together
An extension of an unattached gingiva and the tooth
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle

47. Mental Artery
Exits the mandibular canal at the mental foramen and supplies the chin and lower lip
Band of fibrous tissue which attaches bone to bone
Small head - low nasal bridge - thin upper lip - small mandible
Resists intrusive forces that try to push the tooth inwards

48. External Carotid Artery
Cheek bones--the most breakable bone in the body
Supplies blood to the face and oral cavity
The fixed attachment of a muscle
Exits the mandibular canal at the mental foramen and supplies the chin and lower lip

49. Lateral Incisor
Creates the wall of the dentinal tubule
Second teeth next to central incisors
Enamel is thinner - pulp chamber is smaller -
A horseshoe shaped groove that follow the curve of the dental arch

50. Secondary Dentin
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
Greater - lesser - naso palatine nerves
Forms after the completion of the apical foramen
Divides the crown and the root

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Dental Assisting: Head And Neck Anatomy

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