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Dental Assisting: Head And Neck Anatomy

Subjects : health-sciences, dentistry

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Answer 50 questions in 15 minutes.
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1. What are the characteristics of permanent teeth?
Enamel is thinner - pulp chamber is smaller -
Cells that form cementum
Covers muscle tissue in the posterior portion of the palate
The deepest point of the vestibule

2. Sharpey's Fibers
Full deep rich sound in nasal cavity
Clear fluid secreted by the salivary and mucous glands throughout the mouth
Acts as anchors between the alveolar bone and the tooth
Peg shaped crown with a smooth surface

3. Secondary palate
Forms the remaining 2/3 of the hard and soft palate uvula
Pulverizing or chewing surface
Largest division of the trigeminal nerve
A rounded area beyond the last posterior maxillary tooth

4. Lesser Palatine Foramen
Formed by the uniting of lobes during development of crown
Duct located on the parotid papilla
Bicuspids
Two smaller openings located behind the greater Palatine Foramen in the posterior region of the hard palate

5. Periodontium
Two vertical extensions of the mandible
Separates the developing oral cavities from the nasal cavities
Genioglossus - hyoglossus - styloglossus - palatoglossus
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone

6. Mesenchyme Tissue
Primary embryonic mesoderm layer that develops during the morpho differentiation period
Supplies blood to the face and oral cavity
Functions the same as the alveolar cfg; originate in alveolar bone
What divides the tongue in half and runs from the base to the tip of the tongue

7. Parotid glands
Joined at the midline and are often referred to as the median Palatine suture
The mandibular first premolar
Assist in the movement and functioning of the tongue
The largest of the salivary glands which lie just below and in front of the ear

8. How many roots/ cusps does the mandibular first molar have?
Bifurcated/ 5 cusps
Greater - lesser - naso palatine nerves
Appears to be loosely attached - covering the alveolar bone.
Trigeminal - facial - glossopharyngeal - hypoglossal

9. Alveolar Mucosa
Enamel forming cells
Mucosa that covers the alveolar bone
Bi-cuspids
Assist in the movement and functioning of the tongue

10. Gingival Hyperplasia
To dissolve
Incremental lines around the layers of the enamel matrix
An overgrowth of the gingival tissue
A shallow v-shaped depression located below the bottom of the nose and above the lips

11. Gingival Sulcus
Mandibular central incisors
Scroll like bones outside the nasal cavaties
Outside surface Which is towards the lips
The space between the unattached gingiva and the tooth

12. What is the function of the buccle nerve branch?
Largest facial bone with two sections joined at the median suture
Drains the Pterygoid plexus of the veins
Excess dryness of the mouth
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars

13. Function of Sternocleidomastoid
Papillae that give the tongue the strawberry effect
Assists in elevating the chin
The groove below the lower lips that separates the lips from the chin
Formed by the uniting of lobes during development of crown

14. Function of Trapezius
To bulge of curve outward
Moves the head backward and laterally
Excess bone in the middle of the palate
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface

15. Sublingual Caruncles
Separation of the upper lip ( 1 of 1000 live births)
2 small raised folds of tissue where the lingual frenum attaches
Origin of the tooth
Buccal - lingual - and inferior alveolar

16. Mylohyoid Nerve Branch
The inner surface of the cheeks
The crown of the tooth that is nearest the incisal edge near the anterior tooth
Small dark brushes
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle

17. Greater Palatine Nerve
Primitive mouth
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth
Forms after the completion of the apical foramen
Assist in depressing the mandible and elevating the tongue

18. Symphysis
A concave area where two bones of the mandible are fused in the center of the mandible on the external surface
Appears to be loosely attached - covering the alveolar bone.
Wings of the sphenoid bone
What divides the tongue in half and runs from the base to the tip of the tongue

19. Oblique Fiber Group
Dentin found between the tubules
Two cortical bone plates that come together between each tooth
Vestibule - vestibule fornix - labial mucosa - buccal mucosa - parotid papilla - Stenson's duct - linea alba - Fordyce's spots - alveolar mucosa - gingiva - labial frenum - buccal frenum
Resists intrusive forces that try to push the tooth inwards

20. Eruption
Two smaller openings located behind the greater Palatine Foramen in the posterior region of the hard palate
Teeth after cuspids
Tooth emerges from gum tissue and becomes visible
Slight ridges on the cervical third of certain teeth that extend mesiodistally

21. Bud stage
The moveable attachment of the muscle
10 days
Initiation of the tooth begins
Supplies blood to the roots and periodontal ligaments of the interior teeth

22. Apical Fiber Group
Vestibule - vestibule fornix - labial mucosa - buccal mucosa - parotid papilla - Stenson's duct - linea alba - Fordyce's spots - alveolar mucosa - gingiva - labial frenum - buccal frenum
Located on the inside of the body of the ramus
Resists forces that try to pull the tooth outward
Triferacated

23. Pit
Place where the groove comes together or fissures cross
The line of demarcation between the attached gingiva and the marginal gingiva
A junction or center of veins that directly or indirectly drain a vast area
Enamel forming cells

24. Alveolus
Where the ectoderm layer matures into the enamel
Bone that surrounds the root of the tooth
Forms after the completion of the apical foramen
Primary and permanent

25. Lingual Vein
9 months (5 months ultrasound to tell sex)
Drains the floor of the mouth
Cells that form dentin
Primary embryonic mesoderm layer that develops during the morpho differentiation period

26. Ligament
Band of fibrous tissue which attaches bone to bone
Bony projection found on the bottom border of the temporal bone
Radiates from the developmental groove
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

27. What are the four major muscles of facial expression
Orbicularis oris - buccinator - mentalis - zygomatic major
Origin - fixed point - insertion - movable point
12 years
Dentin found between the tubules

28. Middle Superior Alveolar Nerve
The space between the unattached gingiva and the tooth
The inner surface of the cheeks
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids
Folds of tissue that extend horizontally from the uvula to the base of the tongue

29. What kind of root does the maxillary first molar have?
Cells From which connective tissue evolve
Triferacated
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
The tip of the chin

30. What is another name for premolars?
Extends from the mucogingival junction to the gingival groove
Bi-cuspids
Assist in the movement and functioning of the tongue
32

31. Calcification
Resists forces that try to pull the tooth outward
Layers of tooth tissue become calcified
Supplies blood to the temporal muscle - masseter muscle - pterygoid muscle and buccanator
A raised area of tissue laying behind the maxillary central incisors on the hard palate

32. Filiform Papillae
4th week
Enamel is thinner - pulp chamber is smaller -
Initiation of the tooth begins
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue

33. Caruncle
A rounded area beyond the last posterior maxillary tooth
Fleshy elevation under the tongue
A flap of tissue on the on the buccal mucosa
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

34. What teeth are removed if overcrowding occurs?
The layer of dentin that surrounds the pulp
Set of arches found farther in the back of the throat
Bicuspids
Interdental ligament

35. Torus
Raised vertical folds of tissue on the lateral border of the tongue
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone
Excess bone in the middle of the palate
Supplies blood to the roots and periodontal ligaments of the interior teeth

36. Genial Tubercles
Small bony projections surrounding the lingual foramen
A raised area of tissue laying behind the maxillary central incisors on the hard palate
Follows the length of the body of the mandible past the last tooth and up to the ramus
Short tubules that seem to crossover to the enamel

37. Cyto differentiation
The development of different cells
Located on the inside of the body of the ramus
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein
Synovial fluid

38. What are the only permeant teeth that are not succedaneous?
Acts as anchors between the alveolar bone and the tooth
Molars
The first predentin that is formed and matures within the tube
Extends interiorly from the pterygopalatine nerve and exits thru the incisive foramen

39. Dentogingival Fiber Groups
Surface towards the midline
Act to maintain the gingival integrity of the marginal gingiva
Middle two teeth in the mouth
Origin of the tooth

40. Labial
Smaller - enamel thicker - pulp chamber is larger is larger - bifurcation wider
Outside surface Which is towards the lips
Buccal - lingual - and inferior alveolar
Used to pulverize food

41. Sublingual Sulcus
The groove below the lower lips that separates the lips from the chin
A horseshoe shaped groove that follow the curve of the dental arch
Scroll like bones outside the nasal cavaties
Follows the inside of the ramus and the body of the mandible

42. Supplemental Groove
Radiates from the developmental groove
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
The deepest point of the vestibule
Retracts or depresses the tongue

43. What are the 3 branches of the pterygopalatine nerve branch?
No bicuspids/ no 3rd molars
Greater - lesser - naso palatine nerves
Cut - tear - and grind food
The inner surface of the lips

44. Interdental Gingiva
Surface away from the midline
An extension of an unattached gingiva and the tooth
A period of both primary teeth and permeant teeth are in the dentition
A shallow v-shaped depression located below the bottom of the nose and above the lips

45. Intercellular Substances
When the surface of the teeth becomes grooved
Forms the remaining 2/3 of the hard and soft palate uvula
Substances between cells
Small bony projections surrounding the lingual foramen

46. Apposition
Calcium salts are deposited into formed tooth
A condition where the lower frenum attachment is very short/DDS/frenectomy
Hinge motion and gliding movement
Incremental line indicating trauma of birth

47. Attached Gingiva
Elevates the posterior portion of the tongue and narrows the fauces
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle
Assist in depressing the mandible and elevating the tongue
Extends from the mucogingival junction to the gingival groove

48. Gestational period
When the dentin is exposed
Extends from the mucogingival junction to the gingival groove
9 months (5 months ultrasound to tell sex)
Innervates the orbicular oculi - the area around the eye - and the area around and behind the zygomatic arch

49. Incisal Edge
Resists intrusive forces that try to push the tooth inwards
Three bulges on the incisal edge
Intervating the anterior teeth and the labial gingiva
Biting edge of the teeth

50. Imbrication lines
The development of different forms
Slight ridges on the cervical third of certain teeth that extend mesiodistally
Narrow long enamel tuft
Shed from the oral cavity

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Dental Assisting: Head And Neck Anatomy

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