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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. What is the purpose of saliva?
Largest of the branches of the external carotid artery; supplies facial structure
To lubricate the oral cavity and to moisten food
Teeth after cuspids
Cells From which connective tissue evolve

2. Fossa
12 years
Tributary of the facial vein which connects the facial vein to the pterygoid plexus of the veins
Rounded depression on a tooth
Intervates the anterior maxillary sinus - gingiva - cuspids - laterals - and central incisors

3. What kind of root does the maxillary first molar have?
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone
Wearing away of the incisal or occlusal surfaces of the tooth
Triferacated
Radiates from the developmental groove

4. Proliferation
Where the ectoderm layer matures into the enamel
Occurs in unusual ways and distorted crowns may appear
Duct located on the parotid papilla
Aid in attaching the gingiva to the alveolar bone

5. Lobes
Covers muscle tissue in the posterior portion of the palate
Developmental segment of a tooth
1500 millimeters
Vertical groove on the midline of the upper lip

6. Contour Lines of Owen
Inner portion of the enamel rod
Found near the cementoenamel junction
Demonstrates a disturbance in the body metabolism
Slight ridges on the cervical third of certain teeth that extend mesiodistally

7. Purpose of premolars
Resists forces that try to pull the tooth outward
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth
Used to pulverize food
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

8. Maxillary Arch
Upper arch of the teeth
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth
4 cusps/ bifurcated
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip

9. Uvula
An overgrowth of the gingival tissue
A projection that extends off the back of the soft palate
Vestibule - vestibule fornix - labial mucosa - buccal mucosa - parotid papilla - Stenson's duct - linea alba - Fordyce's spots - alveolar mucosa - gingiva - labial frenum - buccal frenum
Secrete saliva to assist in process of digestion

10. Apical Fiber Group
Resists forces that try to pull the tooth outward
4th week
Respiratory system - digestive system and glandular organs
Demonstrates a disturbance in the body metabolism

11. Labial Commissures
Forming organ takes shape and resembles the shape of a bell
Corners of the mouth
Study of prenatal growth and the developing process of an individual
Calcified masses of dentin

12. Imbrication lines
Slight ridges on the cervical third of certain teeth that extend mesiodistally
Found near the cementoenamel junction
To dissolve
Joined at the midline and are often referred to as the median Palatine suture

13. Neonatal line
Located in a depressed area between the pillars
Begin at the caruncles on either side of the frenum and run backward to the base of the tongue
Incremental line indicating trauma of birth
Forms the bulk of the tooth

14. Lingual Nerve Branch
Primary and permanent
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
Anterior to the ethmoid bone and part of the orbit (corners of the eye)
Slight ridges on the cervical third of certain teeth that extend mesiodistally

15. Exfoliated
Ligaments and muscles of mastication
Shed from the oral cavity
Two weeks thru 8th week
Mastication - aids in speech - influence facial structure - chewing surfaces

16. How many teeth are in the permanent set of teeth?
Two weeks thru 8th week
32
Follows the length of the body of the mandible past the last tooth and up to the ramus
Where the proximal sides of two teeth come together and touch

17. lst and second premolars
Resist rotational forces and hold teeth in inter-proximal contact
Teeth after cuspids
Tooth emerges from gum tissue and becomes visible
Moves the head backward and laterally

18. Perikymata
Supplies blood to the roots and periodontal ligaments of the molars and premolars
Place where the groove comes together or fissures cross
Small grooves noted on some teeth
Healthy gingival tissue with an orange texture

19. Maxillary Nerve Branch
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx
A shallow v-shaped depression located below the bottom of the nose and above the lips
Convex area on the lingual surface near gingiva
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein

20. Groove
6 years old
Small linear depression
Constricts the nasopharyngeal passage and elevates the larynx
A line of tissue that extends from the tongue to the floor of the mouth

21. Muscle origine
The fixed attachment of a muscle
A bat shaped bone which forms the anterior portion of the skull
Act to maintain the gingival integrity of the marginal gingiva
Linear elevation of the tooth

22. Incisive Papilla
Two
An extension of an unattached gingiva and the tooth
Branches off the inferior alveolar artery before intering the mandibular canal
A raised area of tissue laying behind the maxillary central incisors on the hard palate

23. What are the only permeant teeth that are not succedaneous?
Functions the same as the alveolar cfg; originate in alveolar bone
Molars
Ligaments and muscles of mastication
12 years

24. When do the tooth buds appear?
Supplies blood to the roots and periodontal ligaments of the interior teeth
Two weeks thru 8th week
Two
Week 11

25. Gingival Sulcus
Extreme variations from the norm
Excess dryness of the mouth
The space between the unattached gingiva and the tooth
Assist in depressing the mandible and elevating the tongue

26. What is another name for premolars?
Papillae that give the tongue the strawberry effect
Bi-cuspids
Oval structures that are located on the dorsal surface of the tongue
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

27. What are the 4 maxillary nerve branches?
The mandibular first premolar
Band of fibrous tissue which attaches muscle to bone
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine
An extension of an unattached gingiva and the tooth

28. Facial development
Band of fibrous tissue which attaches muscle to bone
Conception thru the first two weeks
Enamel forming cells
4th week

29. What are the 2 sets of teeth?
Primary and permanent
Portion covered with cementum
The fixed attachment of a muscle
Study of prenatal growth and the developing process of an individual

30. What are the 4 pairs of muscles of mastication!
Temporal muscles - masseter muscles - internal pterygoid muscles - external pterygoid muscles
Raised vertical folds of tissue on the lateral border of the tongue
Small linear depression
Narrow long enamel tuft

31. When does the maxillary second molar erupt?
Oval structures that are located on the dorsal surface of the tongue
12 years
Greater - lesser - naso palatine nerves
Wings of the sphenoid bone

32. Oblique Fiber Group
Resists intrusive forces that try to push the tooth inwards
A condition where the lower frenum attachment is very short/DDS/frenectomy
Demonstrates a disturbance in the body metabolism
Supplies the gingival - maxillary sinus - cheeks - and maxillary molars with the exception of the mesial buccal root of the first molar

33. Pterygoid Process
Tooth emerges from gum tissue and becomes visible
Wings of the sphenoid bone
Extends from the medial corner of the eye to the nasal cavity
The deepest point of the vestibule

34. Lesser Palatine Nerve
Composed of mucosa and surrounds the necks of the teeth
(free gingiva) surrounds the teeth
The space between the unattached gingiva and the tooth
Smaller branch that ennervates the soft palate uvula and tonsils

35. Alveologingival Fiber Groups
Palatoglossus - palatopharyngeal
Responsible for laying down the enamel matrix into place
Assist in the movement and functioning of the tongue
Aid in attaching the gingiva to the alveolar bone

36. Nasolacrimal groove
Small head - low nasal bridge - thin upper lip - small mandible
Extends from the medial corner of the eye to the nasal cavity
An overgrowth of the gingival tissue
Folds of tissue to the the lingual veins

37. Gums
Small bony projections surrounding the lingual foramen
Tubules that pass through the entire surface of the dentin
Where the ectoderm layer matures into the enamel
Tissue covering the alveolar processes

38. Dentinal Tubules
The inner surface of the lips
A bony projection that separates each socket
Tubules that pass through the entire surface of the dentin
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

39. Pterygoid Artery
An enclosed area that matures into dentin - cementum and pulp
Supplies blood to the temporal muscle - masseter muscle - pterygoid muscle and buccanator
Week 11
Elevates the posterior portion of the tongue and narrows the fauces

40. Histo Differentation
Rounded depression on a tooth
Two cortical bone plates that come together between each tooth
Composed of mucosa and surrounds the necks of the teeth
The development of different tissues

41. Lacrimal Bones
Inside surface Which is towards the tongue - on anterior teeth
Anterior to the ethmoid bone and part of the orbit (corners of the eye)
Intervates the anterior maxillary sinus - gingiva - cuspids - laterals - and central incisors
Pointed or rounded mounds on the crown of the tooth

42. Lingual Vein
2 small raised folds of tissue where the lingual frenum attaches
Drains the floor of the mouth
Origin - fixed point - insertion - movable point
Fifth cusp located on the mesial surface lingual surface of maxillary first molars

43. Mental Nerve Branch
4th week
Smaller - enamel thicker - pulp chamber is larger is larger - bifurcation wider
Skeletal or soft tissue structures used as reference points in describing locations of anatomical structures or taking measurements
Largest division of the trigeminal nerve

44. Cortical Bone
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine
The disc becomes displaced
Compact bone plate of the facial and lingual surfaces
Forms after the completion of the apical foramen

45. Enamel Spindle
Short tubules that seem to crossover to the enamel
Vestibule - vestibule fornix - labial mucosa - buccal mucosa - parotid papilla - Stenson's duct - linea alba - Fordyce's spots - alveolar mucosa - gingiva - labial frenum - buccal frenum
Chewing and swallowing food
Tissue fluid surrounding the cell membrane of the odontoblast

46. Internal Oblique Ridge
Responsible for laying down the enamel matrix into place
Follows the inside of the ramus and the body of the mandible
An overgrowth of the gingival tissue
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids

47. Fetus
Study of prenatal growth and the developing process of an individual
Corners of the mouth
Drains the facial structures beginning near the eye and descending toward the mandible
9 weeks thru birth

48. Histo Differentiation
Two cortical bone plates that come together between each tooth
Cells develop into different tissues
The outer edge of the nostril
Excess dryness of the mouth

49. Marginal Ridges
The first predentin that is formed and matures within the tube
Rounded depression on a tooth
Bony projection found on the bottom border of the temporal bone
Elevated are of enamel that forms the Mesial and distal borders

50. Alveolar Crest
Molaris meaning millstone
The teeth located at the back of the mouth
Two cortical bone plates that come together between each tooth
Shed from the oral cavity

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Dental Assisting: Head And Neck Anatomy

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