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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. What kind of root does the maxillary first molar have?
Triferacated
2 to 3 pints
Teeth will not erupt in proper position
The largest of three openings located in the posterior region of the hard palate

2. Mixed Dentition
Clear fluid secreted by the salivary and mucous glands throughout the mouth
Teeth after cuspids
A period of both primary teeth and permeant teeth are in the dentition
Resist rotational forces and hold teeth in inter-proximal contact

3. What are the four major muscles of facial expression
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone
Resulting from an imperfect union where the lobes come together
Forms a large cavity above the roots of the maxillary molars
Orbicularis oris - buccinator - mentalis - zygomatic major

4. Primary Dentin
Cells that form cementum
Primary embryonic mesoderm layer that develops during the morpho differentiation period
Forms the bulk of the tooth
A line of tissue that extends from the tongue to the floor of the mouth

5. Incisal Edge
Biting edge of the teeth
Pointed or rounded mounds on the crown of the tooth
Buccal - lingual - and inferior alveolar
4/5 cusps/ 3 roots

6. Odontal Fiber Groups
Allow flexibility during mastication - speech
Molaris meaning millstone
Enamel forming cells
Oval structures that are located on the dorsal surface of the tongue

7. Cervical line
Duct located on the parotid papilla
Week 11
Small bony projections surrounding the lingual foramen
Divides the crown and the root

8. Groove
Small linear depression
Located in a depressed area between the pillars
Smaller - enamel thicker - pulp chamber is larger is larger - bifurcation wider
Of or pertaining to area surrounding naval cavity

9. What are the two muscles of the soft palate?
Palatoglossus - palatopharyngeal
Resulting from an imperfect union where the lobes come together
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle
Triangular space in the gingival direction when two adjacent teeth are in contact

10. How can you tell if someone has cancer by looking at the tongue?
Supplies the gingival - maxillary sinus - cheeks - and maxillary molars with the exception of the mesial buccal root of the first molar
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein
Looking at the border of the tongue
A flap of tissue on the on the buccal mucosa

11. Attached Gingiva
Developmental segment of a tooth
Extends from the mucogingival junction to the gingival groove
Maxillary first molar
Papillae that give the tongue the strawberry effect

12. What is the smallest tooth in dentition?
The deepest point of the vestibule
Mandibular central incisors
Drains the facial structures beginning near the eye and descending toward the mandible
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids

13. Muscle origine
Mandibular central incisors
The fixed attachment of a muscle
Cells that form dentin
The outer edge of the nostril

14. Lingual Vein
Drains the floor of the mouth
Dentin found between the tubules
Tributary of the facial vein which connects the facial vein to the pterygoid plexus of the veins
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue

15. What are the only permeant teeth that are not succedaneous?
A projection that extends off the back of the soft palate
Molars
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone
H20 - mucin - organic salts and digestive enzymes

16. Angle of the Mandible
Sharp projection on the under surface of the temporal bone
Oval structures that are located on the dorsal surface of the tongue
Curve outward
Where the ramus meets the body of the mandible on the outside border

17. Labial Commissures
To dissolve
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone
Corners of the mouth
Tubules that pass through the entire surface of the dentin

18. When do the tooth buds appear?
Portion of the root seen in the oral cavity
Week 11
Surface towards the midline
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth

19. Maxillary Sinus
The first predentin that is formed and matures within the tube
Forms a large cavity above the roots of the maxillary molars
Cluster of tissue that manufactures and secrets fluid
Set of arches found farther in the back of the throat

20. Anterior Alveolar Nerve
Intervates the anterior maxillary sinus - gingiva - cuspids - laterals - and central incisors
Located behind the ramus of the mandible and branches into five arteries
Smaller - enamel thicker - pulp chamber is larger is larger - bifurcation wider
Drains the Pterygoid plexus of the veins

21. Neonatal line
Incremental line indicating trauma of birth
Enamel is thinner - pulp chamber is smaller -
The bone that separates the root on a tooth
Elevated are of enamel that forms the Mesial and distal borders

22. What is another name for premolars?
Cluster of tissue that manufactures and secrets fluid
Bi-cuspids
Retracts or depresses the tongue
Stained growth rings in dentin

23. Lesser Palatine Nerve
Smaller branch that ennervates the soft palate uvula and tonsils
Surface towards the midline
Palatoglossus - palatopharyngeal
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue

24. What is the function of the buccle nerve branch?
Curve outward
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth
Extends from the mucogingival junction to the gingival groove

25. Lobes
Developmental segment of a tooth
The ridges that run horizontally across the hard palate behind the incisive papilla
Opening for the ear
Full deep rich sound in nasal cavity

26. Middle Superior Alveolar Nerve
Three bulges on the incisal edge
Scroll like bones outside the nasal cavaties
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids
Ala of the nose - naso-labial groove - philtrum - vermilion border - vermilion zone - turbercle of the lip - labial commissures - labio-mental grooves

27. Incisive Papilla
Resulting from an imperfect union where the lobes come together
Conception thru the first two weeks
A raised area of tissue laying behind the maxillary central incisors on the hard palate
Forms the bulk of the tooth

28. Posterior Superior Alveolar Nerve
Bifurcated/ 5 cusps
Supplies the gingival - maxillary sinus - cheeks - and maxillary molars with the exception of the mesial buccal root of the first molar
The layer of dentin that surrounds the pulp
Found near the cementoenamel junction

29. Periodontal Ligaments
Formed by the fibroblast cells and secures the tooth in the socket
Elevates the posterior portion of the tongue and narrows the fauces
Forms into the inner lining of the oral cavitiy and enamel of the teeth
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth

30. Function of Sternocleidomastoid
Cut - tear - and grind food
Assists in elevating the chin
Curve outward
A shallow v-shaped depression located below the bottom of the nose and above the lips

31. Internal Jugular Vein
Resist rotational forces and hold teeth in inter-proximal contact
Extends from the medial corner of the eye to the nasal cavity
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein
A duct that empties into the mouth thru the parotid papilla - Parotid gland goes with Stensen's duct

32. Cervical Third
Used to pulverize food
The area on the crown of the tooth that is nearest the gingival
Branches off the inferior alveolar artery before intering the mandibular canal
Interdental ligament

33. Dental Sac
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids
Located in a depressed area between the pillars
An enclosed area that matures into dentin - cementum and pulp
Mildest form of cleft palate

34. Alveolar Crest
Two cortical bone plates that come together between each tooth
Greater - lesser - naso palatine nerves
Follows the inside of the ramus and the body of the mandible
Cells that form dentin

35. Occlusion third
Largest of the branches of the external carotid artery; supplies facial structure
Occlusal surface of the posterior tooth
Moves the head backward and laterally
The tip of the chin

36. Hypercementosis
Aid in attaching the gingiva to the alveolar bone
Causes a thickening of the cementum around the apex
Forms the bulk of the tooth
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

37. Mamelons
Small linear depression
Draws down the mandible and corners of the mouth
Three bulges on the incisal edge
Chewing and swallowing food

38. Posterior Teeth
Indented
The teeth located at the back of the mouth
The inner surface of the lips
Located on the inside of the body of the ramus

39. Interdental Septum
Curve outward
Also known as meniscus it is a dense fibrous connective tissue that is thicker at the ends and attached to the condyle
A bony projection that separates each socket
Molaris meaning millstone

40. Periodontium
Extends interiorly from the pterygopalatine nerve and exits thru the incisive foramen
Middle line of the teeth
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone
Appears to be loosely attached - covering the alveolar bone.

41. Histo Differentiation
Cells develop into different tissues
Bluish veins that run the length of the tongue
Trigeminal nerve--because it ennervates the maxilla and the mandible
Corners of the mouth

42. Primary palate
Tooth emerges from gum tissue and becomes visible
Separates the developing oral cavities from the nasal cavities
Where the ramus meets the body of the mandible on the outside border
The line of demarcation between the attached gingiva and the marginal gingiva

43. Mucosa
A duct that empties into the mouth thru the parotid papilla - Parotid gland goes with Stensen's duct
Lining covers inside of the oral cavity
Synovial fluid
A dense tissue covered with mucous membrane that can withstand chewing

44. Mental Nerve Branch
Band of fibrous tissue which attaches muscle to bone
A flap of tissue on the on the buccal mucosa
Largest division of the trigeminal nerve
Dentin found between the tubules

45. Incisal third
The crown of the tooth that is nearest the incisal edge near the anterior tooth
Opening in the mouth below the orbit on the maxillary bone
Healthy gingival tissue with an orange texture
The ridges that run horizontally across the hard palate behind the incisive papilla

46. Fordyce's Spots
Small yellowish glands on the labial mucosa
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth
Largest papilla - mushroom shaped and are anterior to the sulcus terminalis in a row of 8 to 10
Corners of the mouth

47. Parotid Papilla
Triferacated
Contains six branches that supply blood to the pharynx muscles - soft palate tonsils - the posterior of the tongue - sub mandibular gland - muscles of the face - nasal septom - nose and the eyelids
The corners of the mouth where the top and bottom lip meet
A flap of tissue on the on the buccal mucosa

48. If Palate not fused
The portion of the tooth that meets the gingiva
Teeth will not erupt in proper position
Platysma - trapezius - sternocleidomastoid
The inner surface of the cheeks

49. Sublingual Sulcus
Respiratory system - digestive system and glandular organs
Resist rotational forces and hold teeth in inter-proximal contact
A horseshoe shaped groove that follow the curve of the dental arch
The largest of three openings located in the posterior region of the hard palate

50. Contour Lines of Owen
Demonstrates a disturbance in the body metabolism
When the surface of the teeth becomes grooved
A condition where the lower frenum attachment is very short/DDS/frenectomy
Tissue covering the alveolar processes