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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. Dentinal Hypersensitivity
Two vertical extensions of the mandible
When the dentin is exposed
Small grooves noted on some teeth
The teeth located at the back of the mouth

2. How many teeth are in the Primary teeth?
Supplies blood to the roots and periodontal ligaments of the interior teeth
20
Small linear depression
Compact bone plate of the facial and lingual surfaces

3. Internal Oblique Ridge
Maxillary third molar
Small linear depression
Where the ectoderm layer matures into the enamel
Follows the inside of the ramus and the body of the mandible

4. Mantle Dentin
The first predentin that is formed and matures within the tube
Chewing and swallowing food
The space between the unattached gingiva and the tooth
Smaller - enamel thicker - pulp chamber is larger is larger - bifurcation wider

5. What are the two muscles of the soft palate?
Palatoglossus - palatopharyngeal
Inside surface Which is towards the tongue - on anterior teeth
Demonstrates a disturbance in the body metabolism
When the surface of the teeth becomes grooved

6. Foliate Papillae
2 to 3 pints
A rounded area beyond the last posterior maxillary tooth
The gingiva in the floor of the gingival sulcus that attaches to the enamel
Raised vertical folds of tissue on the lateral border of the tongue

7. Anterior Tonsillar Pillar
A flap of tissue on the on the buccal mucosa
Folds of tissue that extend horizontally from the uvula to the base of the tongue
Circle and tighten the gingival margin around the neck of the tooth
Platysma - trapezius - sternocleidomastoid

8. External Oblique Ridge
Follows the length of the body of the mandible past the last tooth and up to the ramus
A horseshoe shaped groove that follow the curve of the dental arch
Study of prenatal growth and the developing process of an individual
Mandibular central incisors

9. Occlusion third
Resists forces that try to pull the tooth outward
Third tooth from the midline
Bicuspids
Occlusal surface of the posterior tooth

10. Mandibular Artery
Calcified masses of dentin
Located behind the ramus of the mandible and branches into five arteries
Disk that acts like a cushion between the temporal bone and the condyloid process
Elevated are of enamel that forms the Mesial and distal borders

11. Saliva
When the surface of the teeth becomes grooved
Clear fluid secreted by the salivary and mucous glands throughout the mouth
Distends the ramus - enters the mandibular foramen and bifurcates around the first premolar tooth to form the incisive and the mental arteries
Formed by the fibroblast cells and secures the tooth in the socket

12. Gingiva
Composed of mucosa and surrounds the necks of the teeth
The ridges that run horizontally across the hard palate behind the incisive papilla
Occurs in unusual ways and distorted crowns may appear
Where the proximal sides of two teeth come together and touch

13. Alveologingival Fiber Groups
Aid in attaching the gingiva to the alveolar bone
Excess bone in the middle of the palate
Palatoglossus - palatopharyngeal
The first predentin that is formed and matures within the tube

14. Maxilla
Largest facial bone with two sections joined at the median suture
Substances between cells
Conception thru the first two weeks
Canal or passage for fluid

15. Enamel Tufts
When cells rapidly increase in number
Resists forces that try to pull the tooth outward
Small dark brushes
A rounded area beyond the last posterior maxillary tooth

16. Maxillary Nerve Branch
The development of different forms
Oval structures that are located on the dorsal surface of the tongue
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx
Retracts the tongue and raises the tip of the tongue

17. What is saliva made of?
2 to 3 pints
H20 - mucin - organic salts and digestive enzymes
The ridges that run horizontally across the hard palate behind the incisive papilla
The tip of the chin

18. Parotid glands
Portion of the lips that are red
The largest of the salivary glands which lie just below and in front of the ear
The mandibular first premolar
An enclosed area that matures into dentin - cementum and pulp

19. Palatine Bones
What divides the tongue in half and runs from the base to the tip of the tongue
Joined at the midline and are often referred to as the median Palatine suture
Middle line of the teeth
Lift the hyoid bone and assist in opening the mouth

20. What are the 4 extrinsic muscles of the tongue
Genioglossus - hyoglossus - styloglossus - palatoglossus
Portion of the lips where the skin meets the vermilion zone
6 months/3years
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue

21. Landmarks
Respiratory system - digestive system and glandular organs
Skeletal or soft tissue structures used as reference points in describing locations of anatomical structures or taking measurements
Dentin found between the tubules
Small dark brushes

22. Sulingual Folds
Bi-cuspids
Begin at the caruncles on either side of the frenum and run backward to the base of the tongue
Largest of the branches of the external carotid artery; supplies facial structure
Separation of the upper lip ( 1 of 1000 live births)

23. What are the 4 pairs of muscles of mastication!
The deepest point of the vestibule
Formed by the fibroblast cells and secures the tooth in the socket
Temporal muscles - masseter muscles - internal pterygoid muscles - external pterygoid muscles
The teeth located at the back of the mouth

24. Sublingual Caruncles
A rounded area beyond the last posterior maxillary tooth
2 small raised folds of tissue where the lingual frenum attaches
The fixed attachment of a muscle
A projection that extends off the back of the soft palate

25. Sharpey's Fibers
Acts as anchors between the alveolar bone and the tooth
Hinge motion and gliding movement
Resulting from an imperfect union where the lobes come together
2 to 3 pints

26. What are the 2 sets of teeth?
Week 11
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine
Primary and permanent
Molaris meaning millstone

27. Nasolacrimal groove
Teeth will not erupt in proper position
20
Extends from the medial corner of the eye to the nasal cavity
Demonstrates a disturbance in the body metabolism

28. Hard Palate
Circle and tighten the gingival margin around the neck of the tooth
A bony plate covered with keratinized tissue located in the anterior portion of the palate
Duct located on the parotid papilla
Small bony projections surrounding the lingual foramen

29. What are the only permeant teeth that are not succedaneous?
Band of fibrous tissue which attaches bone to bone
Compact bone plate of the facial and lingual surfaces
Molars
Lining covers inside of the oral cavity

30. Attached Gingiva
Respiratory system - digestive system and glandular organs
Extends from the mucogingival junction to the gingival groove
Maxillary first molar
Acts as anchors between the alveolar bone and the tooth

31. Taste Buds
Folds of tissue to the the lingual veins
Largest division of the trigeminal nerve
The layer of dentin that surrounds the pulp
Oval structures that are located on the dorsal surface of the tongue

32. If a patient receives toxic agents - how long does it take for their sense of taste to return?
The groove below the lower lips that separates the lips from the chin
Drains the maxiallary artery and superficial temporal arteries
Formed by the uniting of lobes during development of crown
10 days

33. Triangular Ridge
Three cusps/ trifurcated
6 months/3years
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface
A flap of tissue on the on the buccal mucosa

34. Mental Nerve Branch
Shed from the oral cavity
Assist in depressing the mandible and elevating the tongue
Band of fibrous tissue which attaches muscle to bone
Largest division of the trigeminal nerve

35. lst and second premolars
Teeth after cuspids
9 months (5 months ultrasound to tell sex)
Drains the facial structures beginning near the eye and descending toward the mandible
Compact bone plate of the facial and lingual surfaces

36. What is the largest cranial nerve and the most important to dental auxillaries and why?
Excess bone formations under the tongue on the alvellar bone
Pointed elongations of the pulp
Two vertical extensions of the mandible
Trigeminal nerve--because it ennervates the maxilla and the mandible

37. External Jugular Vein
Bluish veins that run the length of the tongue
Act to maintain the gingival integrity of the marginal gingiva
Drains the superficial veins of the face and neck into the subclavian vein
Portion of the root seen in the oral cavity

38. Incisive Nerve branch
When the dentin is exposed
A line that represents the alveolus bone lining the socket
Elevated area fo enamel that extends obliquely across the occlusal surface of the tooth
Intervating the anterior teeth and the labial gingiva

39. What are the largest and strongest of the mandibular teeth
Molars
The mandibular molars
Week 12
Small raised projections where taste buds are located

40. Palatine Rugae
1500 millimeters
Supplies the gingival - maxillary sinus - cheeks - and maxillary molars with the exception of the mesial buccal root of the first molar
Cheek bones--the most breakable bone in the body
The ridges that run horizontally across the hard palate behind the incisive papilla

41. Mastoid process
Bony projection found on the bottom border of the temporal bone
Lining covers inside of the oral cavity
Lift the hyoid bone and assist in opening the mouth
Oval structures that are located on the dorsal surface of the tongue

42. Alveolar Mucosa
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth
Appears to be loosely attached - covering the alveolar bone.
A horseshoe shaped groove that follow the curve of the dental arch
Located on the inside of the body of the ramus

43. Intercellular Substances
Supplies blood to the brain and the eyes
Elevated area fo enamel that extends obliquely across the occlusal surface of the tooth
Substances between cells
A pocket formed by the soft tissue of cheeks and gingiva

44. Resonance
Depresses the tongue
Study of the structure and form of the teeth
Full deep rich sound in nasal cavity
Calcium salts are deposited into formed tooth

45. Supplemental Groove
Papillae that give the tongue the strawberry effect
Radiates from the developmental groove
Clear fluid secreted by the salivary and mucous glands throughout the mouth
Forms after the completion of the apical foramen

46. External Auditory Meatus
The moveable attachment of the muscle
A junction or center of veins that directly or indirectly drain a vast area
The ridges that run horizontally across the hard palate behind the incisive papilla
Opening for the ear

47. Labial
Portion covered with cementum
Outside surface Which is towards the lips
Pulverizing or chewing surface
The cornerstone of the mouth

48. Vestibule
1500 millimeters
Indented
When the dentin is exposed
A pocket formed by the soft tissue of cheeks and gingiva

49. Tome's process
Chewing and swallowing food
Responsible for laying down the enamel matrix into place
Radiates from the developmental groove
Vertical groove on the midline of the upper lip

50. Inferior Alveolar Artery
Forms the remaining 2/3 of the hard and soft palate uvula
Calcium salts are deposited into formed tooth
Aid in attaching the gingiva to the alveolar bone
Distends the ramus - enters the mandibular foramen and bifurcates around the first premolar tooth to form the incisive and the mental arteries