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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. Resonance
Full deep rich sound in nasal cavity
Formed by the uniting of lobes during development of crown
4/5 cusps/ 3 roots
Supplies blood to the face and oral cavity

2. Anatomical root
Portion covered with cementum
Hinge motion and gliding movement
Middle line of the teeth
Supplies the gingival - maxillary sinus - cheeks - and maxillary molars with the exception of the mesial buccal root of the first molar

3. Mastoid process
Bony projection found on the bottom border of the temporal bone
A condition where the lower frenum attachment is very short/DDS/frenectomy
Ala of the nose - naso-labial groove - philtrum - vermilion border - vermilion zone - turbercle of the lip - labial commissures - labio-mental grooves
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

4. Agenesis
Two weeks thru 8th week
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
Occurs in unusual ways and distorted crowns may appear
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue

5. Xerostomia
Hinge motion and gliding movement
Portion covered with cementum
Excess dryness of the mouth
Acts as anchors between the alveolar bone and the tooth

6. Convects
Tissue covering the alveolar processes
Week 12
9 weeks thru birth
Curve outward

7. Epithelial Attachment
The gingiva in the floor of the gingival sulcus that attaches to the enamel
Folds of tissue that extend horizontally from the uvula to the base of the tongue
The tip of the chin
Drains the maxiallary artery and superficial temporal arteries

8. Posterior Tonsillar Pillar
Set of arches found farther in the back of the throat
Small grooves noted on some teeth
Mucosa that covers the alveolar bone
Narrow long enamel tuft

9. Palatine Rugae
The ridges that run horizontally across the hard palate behind the incisive papilla
A line of demarcation between the attached gingiva and alveolar mucosa
Developmental segment of a tooth
The teeth located at the back of the mouth

10. Styloid Process
Supplies blood to the face and oral cavity
Sharp projection on the under surface of the temporal bone
Small linear depression
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface

11. Sulingual Folds
To lubricate the oral cavity and to moisten food
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
Begin at the caruncles on either side of the frenum and run backward to the base of the tongue
Corners of the mouth

12. What is saliva made of?
Cells that form dentin
Two
Corners of the mouth
H20 - mucin - organic salts and digestive enzymes

13. Function of Trapezius
The slightly raised line extending down the middle of the hard palate
A horseshoe shaped bone lying at the base of the tongue--all the muscles of the tongue and the floor of the mouth attach to this bone
Moves the head backward and laterally
Where the ramus meets the body of the mandible on the outside border

14. How many cusps/ roots do the 2/3rd maxillary molars have?
Three cusps/ trifurcated
Small raised projections where taste buds are located
Forms after the completion of the apical foramen
Exits the mandibular canal at the mental foramen and supplies the chin and lower lip

15. Secondary palate
Forms the remaining 2/3 of the hard and soft palate uvula
Opening for the ear
Enamel forming cells
Bony projection found on the bottom border of the temporal bone

16. What is another name for premolars?
Bi-cuspids
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface
Enamel forming cells
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

17. Saliva
A duct that empties into the mouth thru the parotid papilla - Parotid gland goes with Stensen's duct
Clear fluid secreted by the salivary and mucous glands throughout the mouth
1500 millimeters
Assists in elevating the chin

18. Lateral Incisor
Quarters of the teeth
Second teeth next to central incisors
Portion of the lips that are red
Enamel forming cells

19. Labial Commissures
Corners of the mouth
Convex area on the lingual surface near gingiva
Dentin found between the tubules
An overgrowth of the gingival tissue

20. What are the 4 muscles of the floor of the mouth?
Molars
A triangular area located behind the last molar
Digstric - Mylohyoid - stylohyoid - geniohyoid
A horseshoe shaped groove that follow the curve of the dental arch

21. Lesser Palatine Nerve
Looking at the border of the tongue
Bicuspids
The line of demarcation between the attached gingiva and the marginal gingiva
Smaller branch that ennervates the soft palate uvula and tonsils

22. How much saliva is produced daily?
Located on the inside of the body of the ramus
1500 millimeters
The line of demarcation between the attached gingiva and the marginal gingiva
Primitive mouth

23. What is the maxillary cuspid known as?
Elevated are of enamel that forms the Mesial and distal borders
The cornerstone of the mouth
Used to pulverize food
Begin at the caruncles on either side of the frenum and run backward to the base of the tongue

24. Apical Fiber Group
Supplies blood to the face and oral cavity
Excess dryness of the mouth
The internal surface at the center of the mandible
Resists forces that try to pull the tooth outward

25. Lamina Dura
Acts as anchors between the alveolar bone and the tooth
The moveable attachment of the muscle
Extreme variations from the norm
A line that represents the alveolus bone lining the socket

26. Posterior Superior Alveolar Nerve
Supplies blood to the roots and periodontal ligaments of the molars and premolars
Resists forces that try to pull the tooth outward
Healthy gingival tissue with an orange texture
Supplies the gingival - maxillary sinus - cheeks - and maxillary molars with the exception of the mesial buccal root of the first molar

27. Interdental Gingiva
Dentin found between the tubules
Ligaments and muscles of mastication
The line of demarcation between the attached gingiva and the marginal gingiva
An extension of an unattached gingiva and the tooth

28. Cyto differentiation
The development of different cells
Supplies blood to the roots and periodontal ligaments of the molars and premolars
The ridges that run horizontally across the hard palate behind the incisive papilla
The portion of the tooth that meets the gingiva

29. Cleft Palate
More common in girls--the failure of the palatal shelves to fuse with the primary palate (1 in 2500 births)
The tip of the chin
Wings of the sphenoid bone
The development of different cells

30. Mucogingival Junction
Duct located on the parotid papilla
A line of demarcation between the attached gingiva and alveolar mucosa
9 months (5 months ultrasound to tell sex)
12 years

31. Genial Tubercles
Fleshy elevation under the tongue
Small bony projections surrounding the lingual foramen
Oval structures that are located on the dorsal surface of the tongue
Bicuspids

32. What are the 4 cranial nerves that ennervate the face and oral cavity
Causes a thickening of the cementum around the apex
Enamel is thinner - pulp chamber is smaller -
Ala of the nose - naso-labial groove - philtrum - vermilion border - vermilion zone - turbercle of the lip - labial commissures - labio-mental grooves
Trigeminal - facial - glossopharyngeal - hypoglossal

33. Quadrants
When the dentin is exposed
Inside of the maxillary teeth
Quarters of the teeth
Small bony projections surrounding the lingual foramen

34. Ala of the Nose
Surface away from the midline
The development of different forms
The outer edge of the nostril
Calcified masses of dentin

35. Posterior Teeth
Small grooves noted on some teeth
Draws down the mandible and corners of the mouth
The teeth located at the back of the mouth
Formed by the uniting of lobes during development of crown

36. Calcification
A triangular area located behind the last molar
Retracts the tongue and raises the tip of the tongue
Layers of tooth tissue become calcified
Cells that form dentin

37. Alveolar Mucosa
Causes a thickening of the cementum around the apex
Mildest form of cleft palate
Platysma - trapezius - sternocleidomastoid
Mucosa that covers the alveolar bone

38. Retro Mandibular Vein
Three bulges on the incisal edge
Drains the maxiallary artery and superficial temporal arteries
To bulge of curve outward
Intervates the anterior maxillary sinus - gingiva - cuspids - laterals - and central incisors

39. Denticion
The inner surface of the cheeks
Natural teeth in position
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface
Buccal - lingual - and inferior alveolar

40. Primary palate
Forms after the completion of the apical foramen
Acts as anchors between the alveolar bone and the tooth
Portion covered with cementum
Separates the developing oral cavities from the nasal cavities

41. Peritubular Dentin
Tissue covering the alveolar processes
Week 11
A horseshoe shaped groove that follow the curve of the dental arch
Creates the wall of the dentinal tubule

42. Parotid glands
The largest of the salivary glands which lie just below and in front of the ear
A bony plate covered with keratinized tissue located in the anterior portion of the palate
Radiates from the developmental groove
Excess bone in the middle of the palate

43. What are the 4 maxillary nerve branches?
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine
Forms the remaining 2/3 of the hard and soft palate uvula
Hinge motion and gliding movement
Supplies blood to the face and oral cavity

44. Succedaneous teeth
The space between the unattached gingiva and the tooth
Supportive fibers that anchor the tooth to the bone
Bicuspids
Permeante teeth replace the primary teeth

45. Pterygoid Artery
Supplies blood to the temporal muscle - masseter muscle - pterygoid muscle and buccanator
Extreme variations from the norm
Folds of tissue that extend horizontally from the uvula to the base of the tongue
Temporal muscles - masseter muscles - internal pterygoid muscles - external pterygoid muscles

46. Stomedeum
Portion of the root seen in the oral cavity
Opening for the ear
Primitive mouth
Supplies blood to the face and oral cavity

47. Foliate Papillae
Assists in elevating the chin
Genioglossus - hyoglossus - styloglossus - palatoglossus
Begin at the caruncles on either side of the frenum and run backward to the base of the tongue
Raised vertical folds of tissue on the lateral border of the tongue

48. Embryology
Formed by the fibroblast cells and secures the tooth in the socket
Study of prenatal growth and the developing process of an individual
32
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth

49. Alveolar Crest Fiber Group
Resulting from an imperfect union where the lobes come together
A line of tissue that extends from the tongue to the floor of the mouth
Function to resist rotational forces and tilting
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue

50. Dental Arteries
Digstric - Mylohyoid - stylohyoid - geniohyoid
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx
Supplies blood to the roots and periodontal ligaments of the molars and premolars
Two