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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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1. Triangular Ridge
Peg shaped crown with a smooth surface
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface
The cornerstone of the mouth
Teeth after cuspids

2. Submandibular Glands

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3. How is the TMJ supported and what controls their movement?
Function to resist rotational forces and tilting
Enamel forming cells
Ligaments and muscles of mastication
Raised vertical folds of tissue on the lateral border of the tongue

4. Stippled
Healthy gingival tissue with an orange texture
A rounded area beyond the last posterior maxillary tooth
Two cortical bone plates that come together between each tooth
Retracts or depresses the tongue

5. Dental Lamina
Growth from the oral epithelium that gives rise to the tooth buds
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids
Forming organ takes shape and resembles the shape of a bell
Separates the developing oral cavities from the nasal cavities

6. What teeth do the deciduous (baby) tooth not include?
Second teeth next to central incisors
2 small raised folds of tissue where the lingual frenum attaches
A flap of tissue on the on the buccal mucosa
No bicuspids/ no 3rd molars

7. What are the largest and strongest of the mandibular teeth
Cells develop into different tissues
The mandibular molars
Two cortical bone plates that come together between each tooth
Conception thru the first two weeks

8. Function of Geneoglossus?
Cut - tear - and grind food
1500 millimeters
Divides the crown and the root
Retracts or depresses the tongue

9. Function of Hyoglossus
A duct that empties into the mouth thru the parotid papilla - Parotid gland goes with Stensen's duct
Buccal - lingual - and inferior alveolar
Shaping the tongue during speech - mastication and swallowing
Depresses the tongue

10. Naso Palatine Nerve
Extends interiorly from the pterygopalatine nerve and exits thru the incisive foramen
32
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars
Second teeth next to central incisors

11. Facial Artery
Formed by the uniting of lobes during development of crown
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
Exits the mandibular canal at the mental foramen and supplies the chin and lower lip
Trigeminal nerve--because it ennervates the maxilla and the mandible

12. Function of Palatoglossus
Elevates the posterior portion of the tongue and narrows the fauces
32
Extends from the medial corner of the eye to the nasal cavity
Largest of the branches of the external carotid artery; supplies facial structure

13. Torus
The disc becomes displaced
Excess bone in the middle of the palate
Forms the remaining 2/3 of the hard and soft palate uvula
A dense tissue covered with mucous membrane that can withstand chewing

14. Secondary Dentin
Where the ramus meets the body of the mandible on the outside border
Found near the cementoenamel junction
Forms after the completion of the apical foramen
The teeth located at the back of the mouth

15. Dentinal Tubules
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue
Tubules that pass through the entire surface of the dentin
Where the proximal sides of two teeth come together and touch
Cells From which connective tissue evolve

16. Stenson's Duct
Ligaments and muscles of mastication
Week 12
10 days
Duct located on the parotid papilla

17. Function of Styloglossus
Temporal muscles - masseter muscles - internal pterygoid muscles - external pterygoid muscles
Mastication - aids in speech - influence facial structure - chewing surfaces
Intervating the anterior teeth and the labial gingiva
Retracts the tongue and raises the tip of the tongue

18. What are the 4 maxillary nerve branches?
Largest of the branches of the external carotid artery; supplies facial structure
The mandibular molars
Pointed or rounded mounds on the crown of the tooth
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine

19. How many cusps/ roots do the 2/3rd mandibular molars have?
A raised white line that runs parallel to where the teeth meet on the buccal mucosa
4 cusps/ bifurcated
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
To dissolve

20. Cingulum
The deepest point of the vestibule
Convex area on the lingual surface near gingiva
Largest division of the trigeminal nerve
The space between the unattached gingiva and the tooth

21. Fetus
Depresses the tongue
Intervates the anterior maxillary sinus - gingiva - cuspids - laterals - and central incisors
9 weeks thru birth
A line of demarcation between the attached gingiva and alveolar mucosa

22. Function of Palatopharyngeal
A flap of tissue on the on the buccal mucosa
Tissue fluid surrounding the cell membrane of the odontoblast
Constricts the nasopharyngeal passage and elevates the larynx
Natural teeth in position

23. Apical Fiber Group
Three cusps/ trifurcated
Resists forces that try to pull the tooth outward
Drains the maxiallary artery and superficial temporal arteries
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged

24. Groove
Small linear depression
Growth from the oral epithelium that gives rise to the tooth buds
Maxillary first molar
Teeth after cuspids

25. Eruption
Tooth emerges from gum tissue and becomes visible
Assists in elevating the chin
Constricts the nasopharyngeal passage and elevates the larynx
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue

26. Histo Differentiation
The outer edge of the nostril
Cells develop into different tissues
6 months/3years
Excess dryness of the mouth

27. Interdental Gingiva
An extension of an unattached gingiva and the tooth
A junction or center of veins that directly or indirectly drain a vast area
A bony plate covered with keratinized tissue located in the anterior portion of the palate
The first predentin that is formed and matures within the tube

28. Imbrication lines
Slight ridges on the cervical third of certain teeth that extend mesiodistally
Bluish veins that run the length of the tongue
Supplies blood to the face and oral cavity
A condition where the lower frenum attachment is very short/DDS/frenectomy

29. Internal Jugular Vein
12 years
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein
Corners of the mouth
Place where the groove comes together or fissures cross

30. Median Sulcus
The study of the microscopic structure and functions of tissues
To lubricate the oral cavity and to moisten food
Pulverizing or chewing surface
What divides the tongue in half and runs from the base to the tip of the tongue

31. Succedaneous teeth
Permeante teeth replace the primary teeth
Three cusps/ trifurcated
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx
Three bulges on the incisal edge

32. Epithelial Attachment
The gingiva in the floor of the gingival sulcus that attaches to the enamel
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars
Scroll like bones outside the nasal cavaties
Inside of the maxillary teeth

33. Which molar contains the cusp of Caribelli?
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
Maxillary first molar
Resist rotational forces and hold teeth in inter-proximal contact
4 cusps/ bifurcated

34. Dentinal Fluid
Tissue fluid surrounding the cell membrane of the odontoblast
Bifurcated/ 5 cusps
Papillae that give the tongue the strawberry effect
Forms the remaining 2/3 of the hard and soft palate uvula

35. Incisal third
Clear fluid secreted by the salivary and mucous glands throughout the mouth
Drains the Pterygoid plexus of the veins
Middle line of the teeth
The crown of the tooth that is nearest the incisal edge near the anterior tooth

36. Alveolar Crest
Formed by the uniting of lobes during development of crown
Small linear depression
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip
Two cortical bone plates that come together between each tooth

37. What are the two ways the TMJs move?
Opening in the mouth below the orbit on the maxillary bone
Compact bone plate of the facial and lingual surfaces
Hinge motion and gliding movement
Shaping the tongue during speech - mastication and swallowing

38. How can you tell if someone has cancer by looking at the tongue?
The area on the crown of the tooth that is nearest the gingival
Enamel forming cells
Looking at the border of the tongue
When the tissue becomes inflamed

39. What are the only permeant teeth that are not succedaneous?
Molars
Assist in depressing the mandible and elevating the tongue
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged
The space between the unattached gingiva and the tooth

40. How much saliva do the salivary glands produce in 24 hours?
Also known as meniscus it is a dense fibrous connective tissue that is thicker at the ends and attached to the condyle
Small head - low nasal bridge - thin upper lip - small mandible
2 to 3 pints
10 days

41. Concave
Indented
Outside surface Which is towards the lips
Innervates the orbicular oculi - the area around the eye - and the area around and behind the zygomatic arch
Located behind the ramus of the mandible and branches into five arteries

42. What are the 4 extrinsic muscles of the tongue
Genioglossus - hyoglossus - styloglossus - palatoglossus
Lift the hyoid bone and assist in opening the mouth
9 weeks thru birth
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

43. Clinical root
A line of demarcation between the attached gingiva and alveolar mucosa
6 years old
Portion of the root seen in the oral cavity
Teeth after cuspids

44. Glenoid Fossa
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle
Week 11
Oval depression of temporal bone in condyloid process
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine

45. Vermilion Border
Resulting from an imperfect union where the lobes come together
Folds of tissue that extend horizontally from the uvula to the base of the tongue
Portion of the lips where the skin meets the vermilion zone
Occurs in unusual ways and distorted crowns may appear

46. Exfoliated
Shed from the oral cavity
Quarters of the teeth
What divides the tongue in half and runs from the base to the tip of the tongue
Draws the hyoid bone superiorly and posteriorly and stabilizes it

47. What are the 4 taste senses and where are they located?
Largest division of the trigeminal nerve
Healthy gingival tissue with an orange texture
Pointed elongations of the pulp
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue

48. Dentogingival Fiber Groups
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine
Act to maintain the gingival integrity of the marginal gingiva
Lining covers inside of the oral cavity
Origin - fixed point - insertion - movable point

49. Xerostomia
2 small raised folds of tissue where the lingual frenum attaches
Excess dryness of the mouth
Molars
Largest of the branches of the external carotid artery; supplies facial structure

50. Zygomatic nerve
Innervates the orbicular oculi - the area around the eye - and the area around and behind the zygomatic arch
The moveable attachment of the muscle
Two cortical bone plates that come together between each tooth
Sharp projection on the under surface of the temporal bone

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Dental Assisting: Head And Neck Anatomy

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