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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. Mastoid process
Bony projection found on the bottom border of the temporal bone
Assist in the movement and functioning of the tongue
4/5 cusps/ 3 roots
Calcified masses of dentin

2. What are the four main functions of deciduous teeth?
Excess bone formations under the tongue on the alvellar bone
Mastication - aids in speech - influence facial structure - chewing surfaces
Demonstrates a disturbance in the body metabolism
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth

3. Cleft Palate
More common in girls--the failure of the palatal shelves to fuse with the primary palate (1 in 2500 births)
Bone that surrounds the root of the tooth
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged
The line of demarcation between the attached gingiva and the marginal gingiva

4. Peritubular Dentin
Cells develop into different tissues
4/5 cusps/ 3 roots
Creates the wall of the dentinal tubule
Portion of the lips that are red

5. Nasal-Labial Groove
A junction or center of veins that directly or indirectly drain a vast area
Indented
A faint line going from the ala of the nose to the corner of the mouth
Curve outward

6. Interradicular Septum
Found near the cementoenamel junction
Upper arch of the teeth
The bone that separates the root on a tooth
Formed by the fibroblast cells and secures the tooth in the socket

7. Fibroblasts
A raised white line that runs parallel to where the teeth meet on the buccal mucosa
Cells From which connective tissue evolve
Scroll like bones outside the nasal cavaties
Resists intrusive forces that try to push the tooth inwards

8. Triangular Ridge
Resists forces that try to pull the tooth outward
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface
Calcified masses of dentin

9. What are the characteristics of deciduous teeth?
Peg shaped crown with a smooth surface
Opening for the ear
Smaller - enamel thicker - pulp chamber is larger is larger - bifurcation wider
Teeth after cuspids

10. What are the intrinsical muscles of the tongue responsible for?
Depresses the tongue
Mucosa that covers the alveolar bone
Moves the head backward and laterally
Shaping the tongue during speech - mastication and swallowing

11. Exfoliated
Smaller branch that ennervates the soft palate uvula and tonsils
Shed from the oral cavity
Found only in multi-rooted teeth and resists rotational forces
Growth from the oral epithelium that gives rise to the tooth buds

12. Neonatal line
Incremental line indicating trauma of birth
Small head - low nasal bridge - thin upper lip - small mandible
The teeth located at the back of the mouth
Second teeth next to central incisors

13. Filiform Papillae
Skeletal or soft tissue structures used as reference points in describing locations of anatomical structures or taking measurements
Ala of the nose - naso-labial groove - philtrum - vermilion border - vermilion zone - turbercle of the lip - labial commissures - labio-mental grooves
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue
The mandibular molars

14. Labial-Mental Groove
The groove below the lower lips that separates the lips from the chin
Bicuspids
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein
Oval structures that are located on the dorsal surface of the tongue

15. What are the extrinsic muscles of the tongue responsible for?
Occlusal surface of the posterior tooth
32
Healthy gingival tissue with an orange texture
Assist in the movement and functioning of the tongue

16. Infraorbital Foramen
To lubricate the oral cavity and to moisten food
Teeth will not erupt in proper position
The fixed attachment of a muscle
Opening in the mouth below the orbit on the maxillary bone

17. Interdental Ligament Group
Small head - low nasal bridge - thin upper lip - small mandible
Circle and tighten the gingival margin around the neck of the tooth
Peg shaped crown with a smooth surface
Resist rotational forces and hold teeth in inter-proximal contact

18. Palatine Rugae
The ridges that run horizontally across the hard palate behind the incisive papilla
Distends the ramus - enters the mandibular foramen and bifurcates around the first premolar tooth to form the incisive and the mental arteries
Supplies blood to the brain and the eyes
The internal surface at the center of the mandible

19. Evanesce
Supplies the gingival - maxillary sinus - cheeks - and maxillary molars with the exception of the mesial buccal root of the first molar
Excess bone formations under the tongue on the alvellar bone
To dissolve
Teeth will not erupt in proper position

20. Pterygoid Process
Located behind the ramus of the mandible and branches into five arteries
20
Sharp projection on the under surface of the temporal bone
Wings of the sphenoid bone

21. Dental Lamina
Growth from the oral epithelium that gives rise to the tooth buds
Found near the cementoenamel junction
An overgrowth of the gingival tissue
When cells rapidly increase in number

22. Imbracation Lines
Triferacated
Inside of the maxillary teeth
Small curved lines that run parellel to the CEJ
A bat shaped bone which forms the anterior portion of the skull

23. Embrasure
Lining covers inside of the oral cavity
Triangular space in the gingival direction when two adjacent teeth are in contact
Smaller - enamel thicker - pulp chamber is larger is larger - bifurcation wider
Folds of tissue that extend horizontally from the uvula to the base of the tongue

24. Fimbriated Folds
Folds of tissue to the the lingual veins
Supplies the gingival - maxillary sinus - cheeks - and maxillary molars with the exception of the mesial buccal root of the first molar
An extension of an unattached gingiva and the tooth
Second teeth next to central incisors

25. Maxillary Nerve Branch
Outside surface Which is towards the cheek - on posterior teeth
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx
Occurs in unusual ways and distorted crowns may appear
(free gingiva) surrounds the teeth

26. Marginal Ridges
1500 millimeters
Middle two teeth in the mouth
Orbicularis oris - buccinator - mentalis - zygomatic major
Elevated are of enamel that forms the Mesial and distal borders

27. Pterygoid plexus of the veins
Place where the groove comes together or fissures cross
A junction or center of veins that directly or indirectly drain a vast area
Depresses the tongue
Draws down the mandible and corners of the mouth

28. What is Ankyloglossia and who can treat it / What is the treatment called?
Two
Vertical groove on the midline of the upper lip
A condition where the lower frenum attachment is very short/DDS/frenectomy
Short tubules that seem to crossover to the enamel

29. Buccal
Outside surface Which is towards the cheek - on posterior teeth
Found only in multi-rooted teeth and resists rotational forces
Incremental line indicating trauma of birth
Allow flexibility during mastication - speech

30. Interradical Fiber Group
Found only in multi-rooted teeth and resists rotational forces
Bicuspids
Assist in depressing the mandible and elevating the tongue
Wearing away of the incisal or occlusal surfaces of the tooth

31. Dental Arteries
Supplies blood to the roots and periodontal ligaments of the molars and premolars
Covers muscle tissue in the posterior portion of the palate
Compact bone plate of the facial and lingual surfaces
Of or pertaining to area surrounding naval cavity

32. Function of Hyoglossus
A pocket formed by the soft tissue of cheeks and gingiva
Depresses the tongue
Tooth emerges from gum tissue and becomes visible
Teeth after cuspids

33. What is the maxillary cuspid known as?
When cells rapidly increase in number
Small grooves noted on some teeth
The cornerstone of the mouth
Small dark brushes

34. Succedaneous teeth
Permeante teeth replace the primary teeth
The largest of the salivary glands which lie just below and in front of the ear
Aid in attaching the gingiva to the alveolar bone
A line of demarcation between the attached gingiva and alveolar mucosa

35. Mylohyoid Artery
Resulting from an imperfect union where the lobes come together
Extends from the mucogingival junction to the gingival groove
Incremental lines around the layers of the enamel matrix
Branches off the inferior alveolar artery before intering the mandibular canal

36. Circular Ligament Fiber Groups
Excess bone formations under the tongue on the alvellar bone
Circle and tighten the gingival margin around the neck of the tooth
Cluster of tissue that manufactures and secrets fluid
The groove below the lower lips that separates the lips from the chin

37. What is the longest tooth in the mandibular arch?
Band of fibrous tissue which attaches muscle to bone
Fleshy elevation under the tongue
The mandibular first premolar
Lower arch of the teeth

38. Submandibular Glands

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39. What is the purpose of permanent teeth?
Small head - low nasal bridge - thin upper lip - small mandible
Slight ridges on the cervical third of certain teeth that extend mesiodistally
Cut - tear - and grind food
The cornerstone of the mouth

40. Alveolar Mucosa
Opening for the ear
Mucosa that covers the alveolar bone
Mildest form of cleft palate
Draws down the mandible and corners of the mouth

41. Torus Mandibularis
Excess bone formations under the tongue on the alvellar bone
A line of tissue that extends from the tongue to the floor of the mouth
Tissue covering the alveolar processes
A pocket formed by the soft tissue of cheeks and gingiva

42. Morphology
Study of the structure and form of the teeth
Small dark brushes
Divides the crown and the root
Mildest form of cleft palate

43. Function of Palatoglossus
Elevates the posterior portion of the tongue and narrows the fauces
Hinge motion and gliding movement
The ridges that run horizontally across the hard palate behind the incisive papilla
An enclosed area that matures into dentin - cementum and pulp

44. Primary Dentin
Extends interiorly from the pterygopalatine nerve and exits thru the incisive foramen
Covering over the enamel that is left over from the epithelium ameloblasts
Forms the bulk of the tooth
1500 millimeters

45. Morpho Differentiation
Radiates from the developmental groove
Forming organ takes shape and resembles the shape of a bell
The slightly raised line extending down the middle of the hard palate
The moveable attachment of the muscle

46. What are the 3 branches of the mandibular nerve branch?
Buccal - lingual - and inferior alveolar
Developmental segment of a tooth
Linear elevation of the tooth
Raised vertical folds of tissue on the lateral border of the tongue

47. Angle of the Mandible
Place where the groove comes together or fissures cross
Small raised projections where taste buds are located
Where the ramus meets the body of the mandible on the outside border
Radiates from the developmental groove

48. Dentinal Fluid
Scroll like bones outside the nasal cavaties
Tissue fluid surrounding the cell membrane of the odontoblast
A line that represents the alveolus bone lining the socket
Bony projection found on the bottom border of the temporal bone

49. What are the 4 extrinsic muscles of the tongue
Fleshy elevation under the tongue
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx
Genioglossus - hyoglossus - styloglossus - palatoglossus
Where the proximal sides of two teeth come together and touch

50. Greater Palatine Nerve
Where the ramus meets the body of the mandible on the outside border
The portion of the tooth that meets the gingiva
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth
Scroll like bones outside the nasal cavaties

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Dental Assisting: Head And Neck Anatomy

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