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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. How can you tell if someone has cancer by looking at the tongue?
Looking at the border of the tongue
Distends the ramus - enters the mandibular foramen and bifurcates around the first premolar tooth to form the incisive and the mental arteries
The ridges that run horizontally across the hard palate behind the incisive papilla
Sharp projection on the under surface of the temporal bone

2. Naso Palatine Nerve
Extends interiorly from the pterygopalatine nerve and exits thru the incisive foramen
Demonstrates a disturbance in the body metabolism
Drains the floor of the mouth
A horseshoe shaped groove that follow the curve of the dental arch

3. What are the 3 branches of the pterygopalatine nerve branch?
Greater - lesser - naso palatine nerves
Corners of the mouth
Shaping the tongue during speech - mastication and swallowing
Wearing away of the incisal or occlusal surfaces of the tooth

4. Maxillary Tuberosity
Linear elevation of the tooth
Cells that form dentin
A rounded area beyond the last posterior maxillary tooth
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth

5. Inferior Alveolar Artery
Peg shaped crown with a smooth surface
Located on the inside of the body of the ramus
To dissolve
Distends the ramus - enters the mandibular foramen and bifurcates around the first premolar tooth to form the incisive and the mental arteries

6. External Carotid Artery
Cluster of tissue that manufactures and secrets fluid
Genioglossus - hyoglossus - styloglossus - palatoglossus
2 to 3 pints
Supplies blood to the face and oral cavity

7. Enamel Spindle
The crown of the tooth that is nearest the incisal edge near the anterior tooth
Act to maintain the gingival integrity of the marginal gingiva
Short tubules that seem to crossover to the enamel
Lower arch of the teeth

8. Stippled
Layers of tooth tissue become calcified
Two weeks thru 8th week
Palatoglossus - palatopharyngeal
Healthy gingival tissue with an orange texture

9. Xygote
Synovial fluid
Conception thru the first two weeks
Raised vertical folds of tissue on the lateral border of the tongue
Demonstrates a disturbance in the body metabolism

10. Apposition
Calcium salts are deposited into formed tooth
An extension of an unattached gingiva and the tooth
Enamel is thinner - pulp chamber is smaller -
Small linear depression

11. Labial Commissures
Constricts the nasopharyngeal passage and elevates the larynx
Orbicularis oris - buccinator - mentalis - zygomatic major
The corners of the mouth where the top and bottom lip meet
Intervating the anterior teeth and the labial gingiva

12. What are the 4 taste senses and where are they located?
Supplies blood to the roots and periodontal ligaments of the interior teeth
Bi-cuspids
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue
The development of different tissues

13. Apical Fiber Group
The cornerstone of the mouth
Resists forces that try to pull the tooth outward
Small grooves noted on some teeth
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface

14. Vermilion Border
Cluster of tissue that manufactures and secrets fluid
Skeletal or soft tissue structures used as reference points in describing locations of anatomical structures or taking measurements
Portion of the lips where the skin meets the vermilion zone
The ridges that run horizontally across the hard palate behind the incisive papilla

15. Pterygoid Artery
Vestibule - vestibule fornix - labial mucosa - buccal mucosa - parotid papilla - Stenson's duct - linea alba - Fordyce's spots - alveolar mucosa - gingiva - labial frenum - buccal frenum
The connective tissue of the marginal gingiva
Middle two teeth in the mouth
Supplies blood to the temporal muscle - masseter muscle - pterygoid muscle and buccanator

16. Maxillary Sinus
Excess dryness of the mouth
Clear fluid secreted by the salivary and mucous glands throughout the mouth
Forms a large cavity above the roots of the maxillary molars
Palatoglossus - palatopharyngeal

17. Embrasure
Compact bone plate of the facial and lingual surfaces
Sharp projection on the under surface of the temporal bone
Looking at the border of the tongue
Triangular space in the gingival direction when two adjacent teeth are in contact

18. Gland
The largest of three openings located in the posterior region of the hard palate
Cluster of tissue that manufactures and secrets fluid
Located in a depressed area between the pillars
Place where the groove comes together or fissures cross

19. Mandible Arch
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
Lower arch of the teeth
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids

20. Evanesce
Three bulges on the incisal edge
To dissolve
Small head - low nasal bridge - thin upper lip - small mandible
Lift the hyoid bone and assist in opening the mouth

21. Papilla
Small raised projections where taste buds are located
Rounded depression on a tooth
Biting edge of the teeth
9 weeks thru birth

22. Posterior Teeth
Inside surface Which is towards the tongue - on anterior teeth
The fixed attachment of a muscle
Where the proximal sides of two teeth come together and touch
The teeth located at the back of the mouth

23. Infraorbital Foramen
Secrete saliva to assist in process of digestion
Two
Responsible for laying down the enamel matrix into place
Opening in the mouth below the orbit on the maxillary bone

24. What are the 4 maxillary nerve branches?
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine
4 cusps/ bifurcated
Used to pulverize food
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone

25. Intertubular Dentin
Mildest form of cleft palate
Origin - fixed point - insertion - movable point
Dentin found between the tubules
Resulting from an imperfect union where the lobes come together

26. Incisive Arteries
Elevated are of enamel that forms the Mesial and distal borders
Supplies blood to the roots and periodontal ligaments of the interior teeth
Incremental line indicating trauma of birth
The slightly raised line extending down the middle of the hard palate

27. Tome's process
Layers of tooth tissue become calcified
Corners of the mouth
Responsible for laying down the enamel matrix into place
What divides the tongue in half and runs from the base to the tip of the tongue

28. Purpose of premolars
Orbicularis oris - buccinator - mentalis - zygomatic major
Used to pulverize food
Band of fibrous tissue which attaches bone to bone
Intervating the anterior teeth and the labial gingiva

29. What are the four major muscles of facial expression
Orbicularis oris - buccinator - mentalis - zygomatic major
Depresses the tongue
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged
Radiates from the developmental groove

30. Salivary Glands
Pulls the hyoid bone and the tongue anteriorly
Primary embryonic mesoderm layer that develops during the morpho differentiation period
Tributary of the facial vein which connects the facial vein to the pterygoid plexus of the veins
Secrete saliva to assist in process of digestion

31. Develop Mental Groove
Disk that acts like a cushion between the temporal bone and the condyloid process
Small raised projections where taste buds are located
Second teeth next to central incisors
Formed by the uniting of lobes during development of crown

32. Cortical Bone
Lining covers inside of the oral cavity
Cells that form dentin
Compact bone plate of the facial and lingual surfaces
The teeth located at the back of the mouth

33. Labial
Outside surface Which is towards the lips
Two
The tip of the chin
Inside of the maxillary teeth

34. Gums
Tissue covering the alveolar processes
Interdental ligament
Extends from the mucogingival junction to the gingival groove
Branches off the inferior alveolar artery before intering the mandibular canal

35. Epithelial Attachment
The gingiva in the floor of the gingival sulcus that attaches to the enamel
The development of different forms
Mandibular central incisors
Drains the floor of the mouth

36. Philtrum
To bulge of curve outward
A shallow v-shaped depression located below the bottom of the nose and above the lips
Of or pertaining to area surrounding naval cavity
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

37. Internal Oblique Ridge
Folds of tissue to the the lingual veins
Molaris meaning millstone
Follows the inside of the ramus and the body of the mandible
The gingiva in the floor of the gingival sulcus that attaches to the enamel

38. Sublingual Glands
The ridges that run horizontally across the hard palate behind the incisive papilla
Begin at the caruncles on either side of the frenum and run backward to the base of the tongue
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
Smaller branch that ennervates the soft palate uvula and tonsils

39. Labial Mucosa
The inner surface of the lips
Pointed or rounded mounds on the crown of the tooth
Draws the hyoid bone superiorly and posteriorly and stabilizes it
Middle line of the teeth

40. Function of Digastric
Palatoglossus - palatopharyngeal
Pulverizing or chewing surface
A junction or center of veins that directly or indirectly drain a vast area
Lift the hyoid bone and assist in opening the mouth

41. Marginal GIngiva
The development of different tissues
(free gingiva) surrounds the teeth
The outer edge of the nostril
Supplies the gingival - maxillary sinus - cheeks - and maxillary molars with the exception of the mesial buccal root of the first molar

42. Enamel Lamellae
Drains the superficial veins of the face and neck into the subclavian vein
Narrow long enamel tuft
Middle line of the teeth
Also known as meniscus it is a dense fibrous connective tissue that is thicker at the ends and attached to the condyle

43. Fetus
Supplies blood to the roots and periodontal ligaments of the interior teeth
Divides the crown and the root
Cut - tear - and grind food
9 weeks thru birth

44. Bud stage
Drains the Pterygoid plexus of the veins
Inner portion of the enamel rod
The inner surface of the lips
Initiation of the tooth begins

45. Where is the palate located?
Composed of mucosa and surrounds the necks of the teeth
4th week
Drains the maxiallary artery and superficial temporal arteries
Inside of the maxillary teeth

46. Function of Geneoglossus?
Clear fluid secreted by the salivary and mucous glands throughout the mouth
Trigeminal - facial - glossopharyngeal - hypoglossal
The development of different cells
Retracts or depresses the tongue

47. Mastication
Three bulges on the incisal edge
Appears to be loosely attached - covering the alveolar bone.
Chewing and swallowing food
Primitive mouth

48. Gingiva
Found near the cementoenamel junction
Vestibule - vestibule fornix - labial mucosa - buccal mucosa - parotid papilla - Stenson's duct - linea alba - Fordyce's spots - alveolar mucosa - gingiva - labial frenum - buccal frenum
Primary embryonic mesoderm layer that develops during the morpho differentiation period
A dense tissue covered with mucous membrane that can withstand chewing

49. Horizontal Fiber Group
Largest facial bone with two sections joined at the median suture
Functions the same as the alveolar cfg; originate in alveolar bone
Small bony projections surrounding the lingual foramen
Wearing away of the incisal or occlusal surfaces of the tooth

50. Maxillary Arch
Upper arch of the teeth
Elevated are of enamel that forms the Mesial and distal borders
Papillae that give the tongue the strawberry effect
Genioglossus - hyoglossus - styloglossus - palatoglossus