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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. Circumvallate Papillae
Largest papilla - mushroom shaped and are anterior to the sulcus terminalis in a row of 8 to 10
Forms a large cavity above the roots of the maxillary molars
Acts as anchors between the alveolar bone and the tooth
A line of demarcation between the attached gingiva and alveolar mucosa

2. Muscle origine
A shallow v-shaped depression located below the bottom of the nose and above the lips
Rounded depression on a tooth
Extreme variations from the norm
The fixed attachment of a muscle

3. What are the two muscles of the soft palate?
The mandibular first premolar
4th week
The tip of the chin
Palatoglossus - palatopharyngeal

4. How many teeth are in the permanent set of teeth?
Curve outward
32
Supplies blood to the brain and the eyes
Of or pertaining to area surrounding naval cavity

5. Stensens' Duct (aka Parotid)

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6. Incisive Papilla
Inside of the maxillary teeth
A raised area of tissue laying behind the maxillary central incisors on the hard palate
10 days
A condition where the lower frenum attachment is very short/DDS/frenectomy

7. Anomalies
Extreme variations from the norm
Opening in the mouth below the orbit on the maxillary bone
Natural teeth in position
Depresses the tongue

8. Lingual
H20 - mucin - organic salts and digestive enzymes
Inside surface Which is towards the tongue - on anterior teeth
Two weeks thru 8th week
The development of different cells

9. Mental Artery
Exits the mandibular canal at the mental foramen and supplies the chin and lower lip
Occlusal surface of the posterior tooth
The tip of the chin
Two vertical extensions of the mandible

10. What is the smallest tooth in dentition?
Formed by the uniting of lobes during development of crown
Covering over the enamel that is left over from the epithelium ameloblasts
Interdental ligament
Mandibular central incisors

11. Dentogingival Fiber Groups
Bluish veins that run the length of the tongue
20
Act to maintain the gingival integrity of the marginal gingiva
Triferacated

12. Meniscus
The bone that separates the root on a tooth
Allow flexibility during mastication - speech
Disk that acts like a cushion between the temporal bone and the condyloid process
The portion of the tooth that meets the gingiva

13. Interradical Fiber Group
Joined at the midline and are often referred to as the median Palatine suture
Synovial fluid
Found only in multi-rooted teeth and resists rotational forces
Covering over the enamel that is left over from the epithelium ameloblasts

14. Mesial
Forms the bulk of the tooth
Convex area on the lingual surface near gingiva
Surface towards the midline
Excess bone formations under the tongue on the alvellar bone

15. Pulp Stones
The disc becomes displaced
Calcified masses of dentin
A pocket formed by the soft tissue of cheeks and gingiva
Aid in attaching the gingiva to the alveolar bone

16. Periodontium
The inner surface of the lips
The fixed attachment of a muscle
Covering over the enamel that is left over from the epithelium ameloblasts
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone

17. Stippled
Healthy gingival tissue with an orange texture
No bicuspids/ no 3rd molars
Permeante teeth replace the primary teeth
Elevated area fo enamel that extends obliquely across the occlusal surface of the tooth

18. Histo Differentation
Duct located on the parotid papilla
Bicuspids
The development of different tissues
Acts as anchors between the alveolar bone and the tooth

19. Morphology
Study of the structure and form of the teeth
Bifurcated/ 5 cusps
A condition where the lower frenum attachment is very short/DDS/frenectomy
Two

20. Ridge
The mandibular molars
The inner surface of the cheeks
Opening for the ear
Linear elevation of the tooth

21. Purpose of premolars
32
20
Primitive mouth
Used to pulverize food

22. Vestibule Fornix
The teeth located at the back of the mouth
The deepest point of the vestibule
Small yellowish glands on the labial mucosa
Set of arches found farther in the back of the throat

23. Dental Lamina
Growth from the oral epithelium that gives rise to the tooth buds
Acts as anchors between the alveolar bone and the tooth
Inside of the maxillary teeth
A horseshoe shaped groove that follow the curve of the dental arch

24. What are the 3 branches of the pterygopalatine nerve branch?
Greater - lesser - naso palatine nerves
Extends from the medial corner of the eye to the nasal cavity
Indented
Stained growth rings in dentin

25. Tome's process
Bluish veins that run the length of the tongue
Triangular space in the gingival direction when two adjacent teeth are in contact
Tissue covering the alveolar processes
Responsible for laying down the enamel matrix into place

26. Labial Commissures
Exits the mandibular canal at the mental foramen and supplies the chin and lower lip
Second teeth next to central incisors
Full deep rich sound in nasal cavity
The corners of the mouth where the top and bottom lip meet

27. Genial Tubercles
Conception thru the first two weeks
Small bony projections surrounding the lingual foramen
Scroll like bones outside the nasal cavaties
Chewing and swallowing food

28. Internal Carotid Artery
Supplies blood to the brain and the eyes
Enamel is thinner - pulp chamber is smaller -
Two cortical bone plates that come together between each tooth
The portion of the tooth that meets the gingiva

29. Enamel Lamellae
Upper arch of the teeth
Middle line of the teeth
Narrow long enamel tuft
Disk that acts like a cushion between the temporal bone and the condyloid process

30. Embrasure
Teeth will not erupt in proper position
Triangular space in the gingival direction when two adjacent teeth are in contact
9 weeks thru birth
An extension of an unattached gingiva and the tooth

31. Philtrum
Developmental segment of a tooth
2 to 3 pints
A shallow v-shaped depression located below the bottom of the nose and above the lips
Appears to be loosely attached - covering the alveolar bone.

32. Salivary Glands
Middle line of the teeth
Dentin found between the tubules
Outside surface Which is towards the lips
Secrete saliva to assist in process of digestion

33. Pulp horns
Pointed elongations of the pulp
Mucosa that covers the alveolar bone
Lift the hyoid bone and assist in opening the mouth
Fifth cusp located on the mesial surface lingual surface of maxillary first molars

34. Maxillary Sinus
Three cusps/ trifurcated
Radiates from the developmental groove
Molars
Forms a large cavity above the roots of the maxillary molars

35. Dentinal Hypersensitivity
To lubricate the oral cavity and to moisten food
10 days
Enamel is thinner - pulp chamber is smaller -
When the dentin is exposed

36. Palatine Rugae
Stained growth rings in dentin
2 to 3 pints
Found only in multi-rooted teeth and resists rotational forces
The ridges that run horizontally across the hard palate behind the incisive papilla

37. Cuspid
Tooth emerges from gum tissue and becomes visible
The groove below the lower lips that separates the lips from the chin
Third tooth from the midline
Follows the inside of the ramus and the body of the mandible

38. When does the maxillary second molar erupt?
Biting edge of the teeth
12 years
To lubricate the oral cavity and to moisten food
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip

39. When do oral and nasal cavity separate and palate develop?
Largest papilla - mushroom shaped and are anterior to the sulcus terminalis in a row of 8 to 10
Week 12
Two weeks thru 8th week
A condition where the lower frenum attachment is very short/DDS/frenectomy

40. What are the 4 maxillary nerve branches?
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine
Forming organ takes shape and resembles the shape of a bell
6 months/3years
Extends from the mucogingival junction to the gingival groove

41. What is the largest cranial nerve and the most important to dental auxillaries and why?
Forms the remaining 2/3 of the hard and soft palate uvula
Trigeminal nerve--because it ennervates the maxilla and the mandible
Tubules that pass through the entire surface of the dentin
The portion of the tooth that meets the gingiva

42. Mesenchyme Tissue
When cells rapidly increase in number
Acts as anchors between the alveolar bone and the tooth
Forming organ takes shape and resembles the shape of a bell
Primary embryonic mesoderm layer that develops during the morpho differentiation period

43. Infraorbital Foramen
9 months (5 months ultrasound to tell sex)
Divides the crown and the root
Opening in the mouth below the orbit on the maxillary bone
Raised vertical folds of tissue on the lateral border of the tongue

44. Apical Fiber Group
Third tooth from the midline
Resists intrusive forces that try to push the tooth inwards
Resists forces that try to pull the tooth outward
Largest of the branches of the external carotid artery; supplies facial structure

45. If Palate not fused
Teeth will not erupt in proper position
Follows the inside of the ramus and the body of the mandible
Wings of the sphenoid bone
Two smaller openings located behind the greater Palatine Foramen in the posterior region of the hard palate

46. Fetus
When the surface of the teeth becomes grooved
9 weeks thru birth
Inside surface Which is towards the tongue - on anterior teeth
Demonstrates a disturbance in the body metabolism

47. Central Incisor
Aid in attaching the gingiva to the alveolar bone
Middle two teeth in the mouth
4th week
Wearing away of the incisal or occlusal surfaces of the tooth

48. Maxillary Tuberosity
Primitive mouth
A rounded area beyond the last posterior maxillary tooth
Inside of the maxillary teeth
Fleshy elevation under the tongue

49. What is saliva made of?
H20 - mucin - organic salts and digestive enzymes
A period of both primary teeth and permeant teeth are in the dentition
2 to 3 pints
The largest of the salivary glands which lie just below and in front of the ear

50. Enamel Spindle
Short tubules that seem to crossover to the enamel
Forms the bulk of the tooth
A line that represents the alveolus bone lining the socket
Bluish veins that run the length of the tongue