Test your basic knowledge |

Dental Assisting: Head And Neck Anatomy

Subjects : health-sciences, dentistry

Instructions:

Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can study here.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

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. Cleft Uvula
Occlusal surface of the posterior tooth
The development of different tissues
Looking at the border of the tongue
Mildest form of cleft palate

2. Maxillary Artery
Calcium salts are deposited into formed tooth
Responsible for laying down the enamel matrix into place
Rounded depression on a tooth
Largest of the branches of the external carotid artery; supplies facial structure

3. Embryo
Forms into dentin - cementum and pulp of the teeth
Cells From which connective tissue evolve
Functions the same as the alveolar cfg; originate in alveolar bone
Two weeks thru 8th week

4. Agenesis
Lower arch of the teeth
12 years
Occurs in unusual ways and distorted crowns may appear
Bone that surrounds the root of the tooth

5. Attached Gingiva
6 months/3years
Extends from the mucogingival junction to the gingival groove
Lining covers inside of the oral cavity
The gingiva in the floor of the gingival sulcus that attaches to the enamel

6. Supplemental Groove
Clear fluid secreted by the salivary and mucous glands throughout the mouth
Exits the mandibular canal at the mental foramen and supplies the chin and lower lip
Radiates from the developmental groove
Papillae that give the tongue the strawberry effect

7. Free Gingiva
An extension of an unattached gingiva and the tooth
An enclosed area that matures into dentin - cementum and pulp
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged
The portion of the tooth that meets the gingiva

8. Calcification
Layers of tooth tissue become calcified
4 cusps/ bifurcated
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx
Cells that form dentin

9. Alveolus
Functions the same as the alveolar cfg; originate in alveolar bone
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip
Bone that surrounds the root of the tooth
Outside surface Which is towards the cheek - on posterior teeth

10. Function of Styloglossus
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface
Buccal - lingual - and inferior alveolar
Retracts the tongue and raises the tip of the tongue
Maxillary first molar

11. Marginal Ridges
Drains the floor of the mouth
Rounded depression on a tooth
Elevated are of enamel that forms the Mesial and distal borders
Wearing away of the incisal or occlusal surfaces of the tooth

12. Periodontium
Platysma - trapezius - sternocleidomastoid
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone
Origin - fixed point - insertion - movable point
Portion of the lips where the skin meets the vermilion zone

13. Stippled
Healthy gingival tissue with an orange texture
Bluish veins that run the length of the tongue
Responsible for laying down the enamel matrix into place
Dentin found between the tubules

14. What is origin and What is insertion?
Drains the Pterygoid plexus of the veins
Origin - fixed point - insertion - movable point
The inner surface of the cheeks
Tissue covering the alveolar processes

15. Incisal third
The crown of the tooth that is nearest the incisal edge near the anterior tooth
More common in girls--the failure of the palatal shelves to fuse with the primary palate (1 in 2500 births)
Study of the structure and form of the teeth
Located on the inside of the body of the ramus

16. Philtrum
Quarters of the teeth
Vertical groove on the midline of the upper lip
Located in a depressed area between the pillars
Maxillary third molar

17. Proliferation
Function to resist rotational forces and tilting
The mandibular molars
Where the ectoderm layer matures into the enamel
Two vertical extensions of the mandible

18. Mental Artery
12 years
Exits the mandibular canal at the mental foramen and supplies the chin and lower lip
The development of different cells
Depresses the tongue

19. Landmarks
Small raised projections where taste buds are located
The outer edge of the nostril
Outside surface Which is towards the cheek - on posterior teeth
Skeletal or soft tissue structures used as reference points in describing locations of anatomical structures or taking measurements

20. Dentinal Fluid
Trigeminal - facial - glossopharyngeal - hypoglossal
A junction or center of veins that directly or indirectly drain a vast area
Tissue fluid surrounding the cell membrane of the odontoblast
Formed by the fibroblast cells and secures the tooth in the socket

21. Anterior Tonsillar Pillar
Upper arch of the teeth
Tributary of the facial vein which connects the facial vein to the pterygoid plexus of the veins
The largest of the salivary glands which lie just below and in front of the ear
Folds of tissue that extend horizontally from the uvula to the base of the tongue

22. Lamina Dura
A line that represents the alveolus bone lining the socket
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
Dentin found between the tubules
Enamel forming cells

23. Pterygoid Artery
Branches off the inferior alveolar artery before intering the mandibular canal
2 small raised folds of tissue where the lingual frenum attaches
Supplies blood to the temporal muscle - masseter muscle - pterygoid muscle and buccanator
20

24. Imbritation Lines of Von Eboner
The connective tissue of the marginal gingiva
Occlusal surface of the posterior tooth
Stained growth rings in dentin
Bifurcated/ 5 cusps

25. Saliva
Three bulges on the incisal edge
Clear fluid secreted by the salivary and mucous glands throughout the mouth
Intervates the anterior maxillary sinus - gingiva - cuspids - laterals - and central incisors
Compact bone plate of the facial and lingual surfaces

26. Labial
Retracts or depresses the tongue
Full deep rich sound in nasal cavity
Maxillary third molar
Outside surface Which is towards the lips

27. What is Ankyloglossia and who can treat it / What is the treatment called?
4 cusps/ bifurcated
Forms the bulk of the tooth
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone
A condition where the lower frenum attachment is very short/DDS/frenectomy

28. When do oral and nasal cavity separate and palate develop?
Lift the hyoid bone and assist in opening the mouth
Week 12
Enamel is thinner - pulp chamber is smaller -
Ala of the nose - naso-labial groove - philtrum - vermilion border - vermilion zone - turbercle of the lip - labial commissures - labio-mental grooves

29. Filiform Papillae
A triangular area located behind the last molar
Cells From which connective tissue evolve
Found only in multi-rooted teeth and resists rotational forces
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue

30. Glenoid Fossa
Disk that acts like a cushion between the temporal bone and the condyloid process
Oval depression of temporal bone in condyloid process
The teeth located at the back of the mouth
Platysma - trapezius - sternocleidomastoid

31. Torus Mandibularis
Shed from the oral cavity
Pulverizing or chewing surface
Excess bone formations under the tongue on the alvellar bone
The crown of the tooth that is nearest the incisal edge near the anterior tooth

32. Parotid glands
Oval depression of temporal bone in condyloid process
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
The largest of the salivary glands which lie just below and in front of the ear
Quarters of the teeth

33. Function of Palatopharyngeal
Constricts the nasopharyngeal passage and elevates the larynx
Supportive fibers that anchor the tooth to the bone
Chewing and swallowing food
Looking at the border of the tongue

34. Resonance
Smaller branch that ennervates the soft palate uvula and tonsils
Full deep rich sound in nasal cavity
Small bony projections surrounding the lingual foramen
Vestibule - vestibule fornix - labial mucosa - buccal mucosa - parotid papilla - Stenson's duct - linea alba - Fordyce's spots - alveolar mucosa - gingiva - labial frenum - buccal frenum

35. Styloid Process
Responsible for laying down the enamel matrix into place
Joined at the midline and are often referred to as the median Palatine suture
Sharp projection on the under surface of the temporal bone
Primitive mouth

36. Fibroblasts
To lubricate the oral cavity and to moisten food
Week 12
Cells From which connective tissue evolve
The connective tissue of the marginal gingiva

37. Maxillary Tuberosity
Depresses the tongue
Extends from the mucogingival junction to the gingival groove
A rounded area beyond the last posterior maxillary tooth
A triangular area located behind the last molar

38. Ala of the Nose
The outer edge of the nostril
Union of two triangular ridges that produce a single ridge of elevation that cross the occlusal surface of posterior teeth
Small raised projections where taste buds are located
A concave area where two bones of the mandible are fused in the center of the mandible on the external surface

39. What are the four main functions of deciduous teeth?
Teeth after cuspids
Arteries supplying blood to most of the head and the neck
Mastication - aids in speech - influence facial structure - chewing surfaces
Calcified masses of dentin

40. What teeth do the deciduous (baby) tooth not include?
Extreme variations from the norm
Excess dryness of the mouth
No bicuspids/ no 3rd molars
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged

41. Function of Trapezius
Cluster of tissue that manufactures and secrets fluid
Drains the facial structures beginning near the eye and descending toward the mandible
Moves the head backward and laterally
Bi-cuspids

42. Neonatal line
Incremental line indicating trauma of birth
Maxillary first molar
When the tissue becomes inflamed
Resulting from an imperfect union where the lobes come together

43. Mantle Dentin
Papillae that give the tongue the strawberry effect
The first predentin that is formed and matures within the tube
The corners of the mouth where the top and bottom lip meet
When the tissue becomes inflamed

44. Mastoid process
Used to pulverize food
Constricts the nasopharyngeal passage and elevates the larynx
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface
Bony projection found on the bottom border of the temporal bone

45. Mandibular Foramen
Small linear depression
The study of the microscopic structure and functions of tissues
Narrow long enamel tuft
Located on the inside of the body of the ramus

46. How many cusps/ roots do the 2/3rd mandibular molars have?
4 cusps/ bifurcated
Teeth will not erupt in proper position
Genioglossus - hyoglossus - styloglossus - palatoglossus
A bony projection that separates each socket

47. When does the maxillary second molar erupt?
Origin - fixed point - insertion - movable point
12 years
Small head - low nasal bridge - thin upper lip - small mandible
Corners of the mouth

48. Muscle origine
Covers muscle tissue in the posterior portion of the palate
The fixed attachment of a muscle
The outer edge of the nostril
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth

49. Parotid Papilla
Mucosa that covers the alveolar bone
A flap of tissue on the on the buccal mucosa
Outside surface Which is towards the cheek - on posterior teeth
Layers of tooth tissue become calcified

50. Function of Sternocleidomastoid
Trigeminal - facial - glossopharyngeal - hypoglossal
Interdental ligament
Dividing point of a multi-rooted tooth
Assists in elevating the chin