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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. Oblique Fiber Group
Assist in depressing the mandible and elevating the tongue
Excess bone in the middle of the palate
Palatoglossus - palatopharyngeal
Resists intrusive forces that try to push the tooth inwards

2. Duct
Canal or passage for fluid
Cut - tear - and grind food
The gingiva in the floor of the gingival sulcus that attaches to the enamel
Tissue fluid surrounding the cell membrane of the odontoblast

3. Tubercle of the Lip
Third tooth from the midline
A small projection in the middle of the upper lip
Three cusps/ trifurcated
A duct that empties into the mouth thru the parotid papilla - Parotid gland goes with Stensen's duct

4. Posterior Teeth
A condition where the lower frenum attachment is very short/DDS/frenectomy
Largest of the branches of the external carotid artery; supplies facial structure
The teeth located at the back of the mouth
Lining covers inside of the oral cavity

5. Retromolar Area
Synovial fluid
Teeth will not erupt in proper position
When the tissue becomes inflamed
A triangular area located behind the last molar

6. Circumpulpal Dentin
The layer of dentin that surrounds the pulp
Wings of the sphenoid bone
Inside of the maxillary teeth
The bone that separates the root on a tooth

7. Foliate Papillae
Raised vertical folds of tissue on the lateral border of the tongue
Tubules that pass through the entire surface of the dentin
Cells that form cementum
Drains the superficial veins of the face and neck into the subclavian vein

8. Facial Vein
Drains the facial structures beginning near the eye and descending toward the mandible
Supplies blood to the face and oral cavity
Orbicularis oris - buccinator - mentalis - zygomatic major
Calcium salts are deposited into formed tooth

9. What teeth do the deciduous (baby) tooth not include?
No bicuspids/ no 3rd molars
Slight ridges on the cervical third of certain teeth that extend mesiodistally
Draws down the mandible and corners of the mouth
To lubricate the oral cavity and to moisten food

10. Incisive Arteries
Supplies blood to the roots and periodontal ligaments of the interior teeth
Largest division of the trigeminal nerve
Temporal muscles - masseter muscles - internal pterygoid muscles - external pterygoid muscles
Study of the structure and form of the teeth

11. How many teeth are in the Primary teeth?
The tip of the chin
Study of the structure and form of the teeth
Three bulges on the incisal edge
20

12. What is the longest tooth in the mandibular arch?
Supplies blood to the roots and periodontal ligaments of the molars and premolars
Trigeminal - facial - glossopharyngeal - hypoglossal
The mandibular first premolar
6 months/3years

13. Mantle Dentin
(free gingiva) surrounds the teeth
The first predentin that is formed and matures within the tube
Three bulges on the incisal edge
Extends from the medial corner of the eye to the nasal cavity

14. Stenson's Duct
Duct located on the parotid papilla
Small curved lines that run parellel to the CEJ
12 years
Maxillary third molar

15. Embrasure
Molars
The inner surface of the cheeks
Triangular space in the gingival direction when two adjacent teeth are in contact
Cells that form dentin

16. Lingual Nerve Branch
Oval depression of temporal bone in condyloid process
Third tooth from the midline
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
Middle two teeth in the mouth

17. Anomalies
Extreme variations from the norm
Folds of tissue to the the lingual veins
Union of two triangular ridges that produce a single ridge of elevation that cross the occlusal surface of posterior teeth
Molars

18. Attached Gingiva
Two
Oval structures that are located on the dorsal surface of the tongue
Extends from the mucogingival junction to the gingival groove
A raised white line that runs parallel to where the teeth meet on the buccal mucosa

19. How much saliva is produced daily?
1500 millimeters
Elevated area fo enamel that extends obliquely across the occlusal surface of the tooth
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx
Draws the hyoid bone superiorly and posteriorly and stabilizes it

20. Buccal
Outside surface Which is towards the cheek - on posterior teeth
Small dark brushes
Excess bone in the middle of the palate
Bifurcated/ 5 cusps

21. Gingiva
An enclosed area that matures into dentin - cementum and pulp
The line of demarcation between the attached gingiva and the marginal gingiva
A dense tissue covered with mucous membrane that can withstand chewing
12 years

22. Fetal Alcohol Syndrome symptons
Small head - low nasal bridge - thin upper lip - small mandible
Occurs in unusual ways and distorted crowns may appear
Forms after the completion of the apical foramen
9 months (5 months ultrasound to tell sex)

23. Lateral Incisor
Smaller branch that ennervates the soft palate uvula and tonsils
Mastication - aids in speech - influence facial structure - chewing surfaces
Second teeth next to central incisors
Bicuspids

24. What is the maxillary cuspid known as?
Two
Ligaments and muscles of mastication
Small head - low nasal bridge - thin upper lip - small mandible
The cornerstone of the mouth

25. Infraorbital Foramen
Opening in the mouth below the orbit on the maxillary bone
Constricts the nasopharyngeal passage and elevates the larynx
Appears to be loosely attached - covering the alveolar bone.
Enamel is thinner - pulp chamber is smaller -

26. Apposition
A bat shaped bone which forms the anterior portion of the skull
Composed of mucosa and surrounds the necks of the teeth
Calcium salts are deposited into formed tooth
Growth from the oral epithelium that gives rise to the tooth buds

27. Maxillary Sinus
The mandibular molars
Forms a large cavity above the roots of the maxillary molars
Triferacated
A raised area of tissue laying behind the maxillary central incisors on the hard palate

28. Circular Ligament Fiber Groups
Circle and tighten the gingival margin around the neck of the tooth
Sharp projection on the under surface of the temporal bone
Drains the superficial veins of the face and neck into the subclavian vein
Ala of the nose - naso-labial groove - philtrum - vermilion border - vermilion zone - turbercle of the lip - labial commissures - labio-mental grooves

29. Labial Commissures
Three cusps/ trifurcated
The corners of the mouth where the top and bottom lip meet
Resists intrusive forces that try to push the tooth inwards
Largest facial bone with two sections joined at the median suture

30. Mixed Dentition
Opening in the mouth below the orbit on the maxillary bone
A period of both primary teeth and permeant teeth are in the dentition
The development of different cells
A faint line going from the ala of the nose to the corner of the mouth

31. Symphysis
Small bony projections surrounding the lingual foramen
Covers muscle tissue in the posterior portion of the palate
Moves the head backward and laterally
A concave area where two bones of the mandible are fused in the center of the mandible on the external surface

32. Which molar is the wisdom tooth
Small grooves noted on some teeth
Joined at the midline and are often referred to as the median Palatine suture
Maxillary third molar
Tissue fluid surrounding the cell membrane of the odontoblast

33. Rami
1500 millimeters
12 years
Two vertical extensions of the mandible
Where the ectoderm layer matures into the enamel

34. Maxillary vein
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone
Tissue fluid surrounding the cell membrane of the odontoblast
Drains the Pterygoid plexus of the veins
Draws down the mandible and corners of the mouth

35. Horizontal Fiber Group
The ridges that run horizontally across the hard palate behind the incisive papilla
Functions the same as the alveolar cfg; originate in alveolar bone
Where the proximal sides of two teeth come together and touch
Where the ramus meets the body of the mandible on the outside border

36. Fossa
Upper arch of the teeth
Resists intrusive forces that try to push the tooth inwards
Canal or passage for fluid
Rounded depression on a tooth

37. What are the 3 branches of the mandibular nerve branch?
The development of different tissues
Calcium salts are deposited into formed tooth
Forms into dentin - cementum and pulp of the teeth
Buccal - lingual - and inferior alveolar

38. What are the two ways the TMJs move?
Intervates the anterior maxillary sinus - gingiva - cuspids - laterals - and central incisors
Hinge motion and gliding movement
The disc becomes displaced
Also known as meniscus it is a dense fibrous connective tissue that is thicker at the ends and attached to the condyle

39. Dentinal Tubules
4th week
Greater - lesser - naso palatine nerves
Tubules that pass through the entire surface of the dentin
Separation of the upper lip ( 1 of 1000 live births)

40. Where is the palate located?
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue
Inside of the maxillary teeth
Origin of the tooth
Tributary of the facial vein which connects the facial vein to the pterygoid plexus of the veins

41. How can you tell if someone has cancer by looking at the tongue?
Resists forces that try to pull the tooth outward
Looking at the border of the tongue
Upper arch of the teeth
The development of different cells

42. Secondary palate
Acts as anchors between the alveolar bone and the tooth
Molaris meaning millstone
Forms the remaining 2/3 of the hard and soft palate uvula
A shallow v-shaped depression located below the bottom of the nose and above the lips

43. Succedaneous teeth
Mucosa that covers the alveolar bone
Permeante teeth replace the primary teeth
Intervating the anterior teeth and the labial gingiva
Exits the mandibular canal at the mental foramen and supplies the chin and lower lip

44. Function of Digastric
A raised white line that runs parallel to where the teeth meet on the buccal mucosa
Week 12
Lift the hyoid bone and assist in opening the mouth
A concave area where two bones of the mandible are fused in the center of the mandible on the external surface

45. What are the eight landmarks of the face?
Ala of the nose - naso-labial groove - philtrum - vermilion border - vermilion zone - turbercle of the lip - labial commissures - labio-mental grooves
The portion of the tooth that meets the gingiva
Trigeminal - facial - glossopharyngeal - hypoglossal
Three bulges on the incisal edge

46. Xerostomia
A dense tissue covered with mucous membrane that can withstand chewing
Excess dryness of the mouth
Branches off the inferior alveolar artery before intering the mandibular canal
Ligaments and muscles of mastication

47. Interdental Gingiva
An extension of an unattached gingiva and the tooth
The moveable attachment of the muscle
Bluish veins that run the length of the tongue
A triangular area located behind the last molar

48. Embryo
A bony projection that separates each socket
Two weeks thru 8th week
A triangular area located behind the last molar
Inside of the maxillary teeth

49. Lamina Propria
The connective tissue of the marginal gingiva
Cut - tear - and grind food
Pulverizing or chewing surface
The development of different forms

50. Gingiva
Shaping the tongue during speech - mastication and swallowing
Composed of mucosa and surrounds the necks of the teeth
Teeth after cuspids
When the tissue becomes inflamed