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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.
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. Intertubular Dentin
Dentin found between the tubules
Linear elevation of the tooth
Pointed elongations of the pulp
Lift the hyoid bone and assist in opening the mouth

2. Palantine Tonsils
A shallow v-shaped depression located below the bottom of the nose and above the lips
Tributary of the facial vein which connects the facial vein to the pterygoid plexus of the veins
Triferacated
Located in a depressed area between the pillars

3. Stenson's Duct
Supplies blood to the roots and periodontal ligaments of the interior teeth
Pulverizing or chewing surface
Duct located on the parotid papilla
The inner surface of the cheeks

4. Sublingual Caruncles
Forms the remaining 2/3 of the hard and soft palate uvula
Bluish veins that run the length of the tongue
Opening in the mouth below the orbit on the maxillary bone
2 small raised folds of tissue where the lingual frenum attaches

5. Ectoderm
Forms into the inner lining of the oral cavitiy and enamel of the teeth
Skeletal or soft tissue structures used as reference points in describing locations of anatomical structures or taking measurements
Calcified masses of dentin
Forms after the completion of the apical foramen

6. Cleft Lip
Chewing and swallowing food
Separation of the upper lip ( 1 of 1000 live births)
Largest papilla - mushroom shaped and are anterior to the sulcus terminalis in a row of 8 to 10
Draws down the mandible and corners of the mouth

7. Gingival Sulcus
2 small raised folds of tissue where the lingual frenum attaches
Duct located on the parotid papilla
Shed from the oral cavity
The space between the unattached gingiva and the tooth

8. Mamelons
A junction or center of veins that directly or indirectly drain a vast area
Cells develop into different tissues
Three bulges on the incisal edge
Pointed elongations of the pulp

9. What is the smallest tooth in dentition?
Formed by the uniting of lobes during development of crown
Mandibular central incisors
An extension of an unattached gingiva and the tooth
Forms the bulk of the tooth

10. What are the two muscles of the soft palate?
Shaping the tongue during speech - mastication and swallowing
A duct that empties into the mouth thru the parotid papilla - Parotid gland goes with Stensen's duct
Resulting from an imperfect union where the lobes come together
Palatoglossus - palatopharyngeal

11. What are the four main functions of deciduous teeth?
The area on the crown of the tooth that is nearest the gingival
Small dark brushes
Mastication - aids in speech - influence facial structure - chewing surfaces
Draws the hyoid bone superiorly and posteriorly and stabilizes it

12. Exfoliated
Located behind the ramus of the mandible and branches into five arteries
Lift the hyoid bone and assist in opening the mouth
Folds of tissue that extend horizontally from the uvula to the base of the tongue
Shed from the oral cavity

13. Pterygoid Process
Largest papilla - mushroom shaped and are anterior to the sulcus terminalis in a row of 8 to 10
Slight ridges on the cervical third of certain teeth that extend mesiodistally
Wings of the sphenoid bone
Wearing away of the incisal or occlusal surfaces of the tooth

14. Retro Mandibular Vein
Vertical groove on the midline of the upper lip
Drains the maxiallary artery and superficial temporal arteries
Of or pertaining to area surrounding naval cavity
Exits the mandibular canal at the mental foramen and supplies the chin and lower lip

15. Facial Vein
Two vertical extensions of the mandible
Drains the facial structures beginning near the eye and descending toward the mandible
Substances between cells
Origin - fixed point - insertion - movable point

16. Cusp of Caribelli
To lubricate the oral cavity and to moisten food
The crown of the tooth that is nearest the incisal edge near the anterior tooth
Fifth cusp located on the mesial surface lingual surface of maxillary first molars
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein

17. Ligament
Band of fibrous tissue which attaches bone to bone
Small yellowish glands on the labial mucosa
Folds of tissue that extend horizontally from the uvula to the base of the tongue
Upper arch of the teeth

18. Convects
A bat shaped bone which forms the anterior portion of the skull
Separation of the upper lip ( 1 of 1000 live births)
A line that represents the alveolus bone lining the socket
Curve outward

19. Common Carotid
2 small raised folds of tissue where the lingual frenum attaches
Molars
Arteries supplying blood to most of the head and the neck
A faint line going from the ala of the nose to the corner of the mouth

20. How many cusps does the second bicuspid have?
Two
A rounded area beyond the last posterior maxillary tooth
Trigeminal nerve--because it ennervates the maxilla and the mandible
Supplies blood to the temporal muscle - masseter muscle - pterygoid muscle and buccanator

21. Horizontal Fiber Group
Functions the same as the alveolar cfg; originate in alveolar bone
Located in a depressed area between the pillars
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth
Shed from the oral cavity

22. Gestational period
Convex area on the lingual surface near gingiva
9 months (5 months ultrasound to tell sex)
Scroll like bones outside the nasal cavaties
Located behind the ramus of the mandible and branches into five arteries

23. Alveolar Mucosa
The gingiva in the floor of the gingival sulcus that attaches to the enamel
Appears to be loosely attached - covering the alveolar bone.
A line that represents the alveolus bone lining the socket
Mildest form of cleft palate

24. Mesenchyme Tissue
12 years
Covering over the enamel that is left over from the epithelium ameloblasts
An extension of an unattached gingiva and the tooth
Primary embryonic mesoderm layer that develops during the morpho differentiation period

25. Mandibular Foramen
Looking at the border of the tongue
Interdental ligament
Located on the inside of the body of the ramus
Two smaller openings located behind the greater Palatine Foramen in the posterior region of the hard palate

26. Interradical Fiber Group
Outside surface Which is towards the lips
Looking at the border of the tongue
Found only in multi-rooted teeth and resists rotational forces
Largest papilla - mushroom shaped and are anterior to the sulcus terminalis in a row of 8 to 10

27. How many teeth are in the permanent set of teeth?
A line of tissue that extends from the tongue to the floor of the mouth
The ridges that run horizontally across the hard palate behind the incisive papilla
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface
32

28. Lingual Nerve Branch
Compact bone plate of the facial and lingual surfaces
Where the ectoderm layer matures into the enamel
Located on the inside of the body of the ramus
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

29. Function of Geneoglossus?
Compact bone plate of the facial and lingual surfaces
Two smaller openings located behind the greater Palatine Foramen in the posterior region of the hard palate
The inner surface of the cheeks
Retracts or depresses the tongue

30. lst and second premolars
Small linear depression
Teeth after cuspids
Follows the inside of the ramus and the body of the mandible
Enamel is thinner - pulp chamber is smaller -

31. Buckle groove
Cheek bones--the most breakable bone in the body
Elevates the posterior portion of the tongue and narrows the fauces
Origin of the tooth
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth

32. Mantle Dentin
Secrete saliva to assist in process of digestion
A small projection in the middle of the upper lip
Draws the hyoid bone superiorly and posteriorly and stabilizes it
The first predentin that is formed and matures within the tube

33. Imbritation Lines of Von Eboner
Glands the size of a walnut that lie on the inside of the mandible and empty saliva into the mouth thru the Wharton's duct
Temporal muscles - masseter muscles - internal pterygoid muscles - external pterygoid muscles
Rounded depression on a tooth
Stained growth rings in dentin

34. Vermilion Zone
Sharp projection on the under surface of the temporal bone
Portion of the lips that are red
Greater - lesser - naso palatine nerves
Disk that acts like a cushion between the temporal bone and the condyloid process

35. Primary palate
Origin - fixed point - insertion - movable point
Separates the developing oral cavities from the nasal cavities
Pulls the hyoid bone and the tongue anteriorly
Radiates from the developmental groove

36. Articular Disc
Elevated area fo enamel that extends obliquely across the occlusal surface of the tooth
1500 millimeters
Scroll like bones outside the nasal cavaties
Also known as meniscus it is a dense fibrous connective tissue that is thicker at the ends and attached to the condyle

37. Taste Buds
Disk that acts like a cushion between the temporal bone and the condyloid process
The mandibular molars
Located on the inside of the body of the ramus
Oval structures that are located on the dorsal surface of the tongue

38. Dentinal Hypersensitivity
When the dentin is exposed
Shaping the tongue during speech - mastication and swallowing
A concave area where two bones of the mandible are fused in the center of the mandible on the external surface
Full deep rich sound in nasal cavity

39. Morpho Differentiation
Forming organ takes shape and resembles the shape of a bell
Mandibular central incisors
The groove below the lower lips that separates the lips from the chin
Cluster of tissue that manufactures and secrets fluid

40. Calcification
Drains the floor of the mouth
Layers of tooth tissue become calcified
Acts as anchors between the alveolar bone and the tooth
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth

41. Gingiva
Composed of mucosa and surrounds the necks of the teeth
Pointed or rounded mounds on the crown of the tooth
Lift the hyoid bone and assist in opening the mouth
Cells that form dentin

42. When do the primary teeth begin erupting and are fully erupted?
Covers muscle tissue in the posterior portion of the palate
6 months/3years
Smaller branch that ennervates the soft palate uvula and tonsils
Two cortical bone plates that come together between each tooth

43. Incisive Arteries
Supplies blood to the roots and periodontal ligaments of the interior teeth
The largest of the salivary glands which lie just below and in front of the ear
Three bulges on the incisal edge
Middle line of the teeth

44. How can you tell if someone has cancer by looking at the tongue?
Looking at the border of the tongue
Cut - tear - and grind food
Triferacated
Pointed elongations of the pulp

45. Intercellular Substances
Primary and permanent
A bat shaped bone which forms the anterior portion of the skull
Tributary of the facial vein which connects the facial vein to the pterygoid plexus of the veins
Substances between cells

46. Caruncle
Extends from the mucogingival junction to the gingival groove
Middle line of the teeth
Where the ramus meets the body of the mandible on the outside border
Fleshy elevation under the tongue

47. Periodontal Ligaments
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone
Formed by the fibroblast cells and secures the tooth in the socket
Allow flexibility during mastication - speech
Rounded depression on a tooth

48. Denticion
Short tubules that seem to crossover to the enamel
Natural teeth in position
A raised white line that runs parallel to where the teeth meet on the buccal mucosa
Pulls the hyoid bone and the tongue anteriorly

49. Cleft Uvula
Mildest form of cleft palate
Acts as anchors between the alveolar bone and the tooth
Orbicularis oris - buccinator - mentalis - zygomatic major
Week 12

50. Cervical Third
Follows the length of the body of the mandible past the last tooth and up to the ramus
Small head - low nasal bridge - thin upper lip - small mandible
The area on the crown of the tooth that is nearest the gingival
Occlusal surface of the posterior tooth