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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.
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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. Maxillary Tuberosity
Inside of the maxillary teeth
A rounded area beyond the last posterior maxillary tooth
Demonstrates a disturbance in the body metabolism
Responsible for laying down the enamel matrix into place

2. Morpho Differentiation
Forming organ takes shape and resembles the shape of a bell
A raised area of tissue laying behind the maxillary central incisors on the hard palate
To bulge of curve outward
Mastication - aids in speech - influence facial structure - chewing surfaces

3. Cemental Spurs
Acts as anchors between the alveolar bone and the tooth
Papillae that give the tongue the strawberry effect
Orbicularis oris - buccinator - mentalis - zygomatic major
Found near the cementoenamel junction

4. Labial Mucosa
The inner surface of the lips
Pulls the hyoid bone and the tongue anteriorly
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip
An extension of an unattached gingiva and the tooth

5. Vestibule Fornix
Dentin found between the tubules
Three bulges on the incisal edge
The deepest point of the vestibule
A pocket formed by the soft tissue of cheeks and gingiva

6. Lesser Palatine Nerve
Supplies blood to the brain and the eyes
Smaller branch that ennervates the soft palate uvula and tonsils
Forms the remaining 2/3 of the hard and soft palate uvula
Permeante teeth replace the primary teeth

7. Evanesce
H20 - mucin - organic salts and digestive enzymes
To dissolve
Fifth cusp located on the mesial surface lingual surface of maxillary first molars
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

8. Nasolacrimal groove
Extends from the medial corner of the eye to the nasal cavity
Creates the wall of the dentinal tubule
H20 - mucin - organic salts and digestive enzymes
The largest of three openings located in the posterior region of the hard palate

9. Mandibular Foramen
4th week
Ala of the nose - naso-labial groove - philtrum - vermilion border - vermilion zone - turbercle of the lip - labial commissures - labio-mental grooves
Resists forces that try to pull the tooth outward
Located on the inside of the body of the ramus

10. Interdental Septum
Forms a large cavity above the roots of the maxillary molars
Slight ridges on the cervical third of certain teeth that extend mesiodistally
Draws down the mandible and corners of the mouth
A bony projection that separates each socket

11. Stippled
Small grooves noted on some teeth
Healthy gingival tissue with an orange texture
Forms into dentin - cementum and pulp of the teeth
Incremental lines around the layers of the enamel matrix

12. Nasal-Labial Groove
Largest papilla - mushroom shaped and are anterior to the sulcus terminalis in a row of 8 to 10
Skeletal or soft tissue structures used as reference points in describing locations of anatomical structures or taking measurements
A faint line going from the ala of the nose to the corner of the mouth
The layer of dentin that surrounds the pulp

13. Median Sulcus
Forms after the completion of the apical foramen
What divides the tongue in half and runs from the base to the tip of the tongue
Papillae that give the tongue the strawberry effect
The inner surface of the lips

14. Endoderm
Draws the hyoid bone superiorly and posteriorly and stabilizes it
The inner surface of the lips
Respiratory system - digestive system and glandular organs
Elevated area fo enamel that extends obliquely across the occlusal surface of the tooth

15. Contact Area
The teeth located at the back of the mouth
Ligaments and muscles of mastication
Outside surface Which is towards the lips
Where the proximal sides of two teeth come together and touch

16. Interdental Gingiva
Drains the maxiallary artery and superficial temporal arteries
An extension of an unattached gingiva and the tooth
A projection that extends off the back of the soft palate
The slightly raised line extending down the middle of the hard palate

17. Interdental Ligament Group
Second teeth next to central incisors
Resist rotational forces and hold teeth in inter-proximal contact
The disc becomes displaced
Retracts the tongue and raises the tip of the tongue

18. Muscle origine
A concave area where two bones of the mandible are fused in the center of the mandible on the external surface
The fixed attachment of a muscle
Excess dryness of the mouth
A bony plate covered with keratinized tissue located in the anterior portion of the palate

19. Fimbriated Folds
Folds of tissue to the the lingual veins
Drains the maxiallary artery and superficial temporal arteries
Chewing and swallowing food
Extends interiorly from the pterygopalatine nerve and exits thru the incisive foramen

20. Cleft Palate
More common in girls--the failure of the palatal shelves to fuse with the primary palate (1 in 2500 births)
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip
Cells From which connective tissue evolve
Middle line of the teeth

21. Embryology
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface
Compact bone plate of the facial and lingual surfaces
A concave area where two bones of the mandible are fused in the center of the mandible on the external surface
Study of prenatal growth and the developing process of an individual

22. Middle Superior Alveolar Nerve
The disc becomes displaced
Portion covered with cementum
Creates the wall of the dentinal tubule
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids

23. How many cusps/ roots do the 2/3rd maxillary molars have?
Responsible for laying down the enamel matrix into place
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
Three cusps/ trifurcated
Substances between cells

24. Imbracation Lines
A faint line going from the ala of the nose to the corner of the mouth
Function to resist rotational forces and tilting
Small curved lines that run parellel to the CEJ
Anterior to the ethmoid bone and part of the orbit (corners of the eye)

25. Alveolus
The outer edge of the nostril
An overgrowth of the gingival tissue
Inside of the maxillary teeth
Bone that surrounds the root of the tooth

26. Rod Core
Vestibule - vestibule fornix - labial mucosa - buccal mucosa - parotid papilla - Stenson's duct - linea alba - Fordyce's spots - alveolar mucosa - gingiva - labial frenum - buccal frenum
Inner portion of the enamel rod
To dissolve
A bat shaped bone which forms the anterior portion of the skull

27. Denticion
What divides the tongue in half and runs from the base to the tip of the tongue
Digstric - Mylohyoid - stylohyoid - geniohyoid
The first predentin that is formed and matures within the tube
Natural teeth in position

28. Dental Sac
Intervating the anterior teeth and the labial gingiva
Growth from the oral epithelium that gives rise to the tooth buds
An enclosed area that matures into dentin - cementum and pulp
Cells that form cementum

29. Histo Differentiation
Assist in the movement and functioning of the tongue
Cells develop into different tissues
Teeth after cuspids
Exits the mandibular canal at the mental foramen and supplies the chin and lower lip

30. Labial-Mental Groove
Bluish veins that run the length of the tongue
The groove below the lower lips that separates the lips from the chin
The slightly raised line extending down the middle of the hard palate
Resulting from an imperfect union where the lobes come together

31. Calcification
Quarters of the teeth
Layers of tooth tissue become calcified
Ligaments and muscles of mastication
Small bony projections surrounding the lingual foramen

32. Apical Fiber Group
Resists forces that try to pull the tooth outward
Forms a large cavity above the roots of the maxillary molars
Pointed elongations of the pulp
Fleshy elevation under the tongue

33. Frenum
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip
Teeth will not erupt in proper position
Natural teeth in position
A raised area of tissue laying behind the maxillary central incisors on the hard palate

34. Styloid Process
Elevates the posterior portion of the tongue and narrows the fauces
Sharp projection on the under surface of the temporal bone
Fleshy elevation under the tongue
The space between the unattached gingiva and the tooth

35. Mantle Dentin
Largest papilla - mushroom shaped and are anterior to the sulcus terminalis in a row of 8 to 10
Acts as anchors between the alveolar bone and the tooth
4/5 cusps/ 3 roots
The first predentin that is formed and matures within the tube

36. Papilla
Small raised projections where taste buds are located
9 months (5 months ultrasound to tell sex)
Resists intrusive forces that try to push the tooth inwards
Developmental segment of a tooth

37. Osteoclasts
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged
Inside of the maxillary teeth
An enclosed area that matures into dentin - cementum and pulp
Palatoglossus - palatopharyngeal

38. Retro Mandibular Vein
Outside surface Which is towards the lips
Pointed or rounded mounds on the crown of the tooth
Drains the maxiallary artery and superficial temporal arteries
Begin at the caruncles on either side of the frenum and run backward to the base of the tongue

39. Submandibular Glands

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40. Imbritation Lines of Von Eboner
More common in girls--the failure of the palatal shelves to fuse with the primary palate (1 in 2500 births)
Stained growth rings in dentin
Inner portion of the enamel rod
The study of the microscopic structure and functions of tissues

41. Succedaneous teeth
When cells rapidly increase in number
A projection that extends off the back of the soft palate
Convex area on the lingual surface near gingiva
Permeante teeth replace the primary teeth

42. Gingival Groove
The line of demarcation between the attached gingiva and the marginal gingiva
Trigeminal - facial - glossopharyngeal - hypoglossal
Aid in attaching the gingiva to the alveolar bone
Where the ectoderm layer matures into the enamel

43. Peritubular Dentin
A line that represents the alveolus bone lining the socket
Creates the wall of the dentinal tubule
Wings of the sphenoid bone
Dentin found between the tubules

44. Posterior Superior Alveolar Nerve
Pointed elongations of the pulp
Supplies the gingival - maxillary sinus - cheeks - and maxillary molars with the exception of the mesial buccal root of the first molar
A rounded area beyond the last posterior maxillary tooth
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone

45. Function of Palatoglossus
Trigeminal - facial - glossopharyngeal - hypoglossal
Elevates the posterior portion of the tongue and narrows the fauces
Pointed elongations of the pulp
A bat shaped bone which forms the anterior portion of the skull

46. Cusp of Caribelli
Fifth cusp located on the mesial surface lingual surface of maxillary first molars
Retracts the tongue and raises the tip of the tongue
Innervates the orbicular oculi - the area around the eye - and the area around and behind the zygomatic arch
Short tubules that seem to crossover to the enamel

47. What are the eight landmarks of the face?
When cells rapidly increase in number
Ala of the nose - naso-labial groove - philtrum - vermilion border - vermilion zone - turbercle of the lip - labial commissures - labio-mental grooves
Bluish veins that run the length of the tongue
Set of arches found farther in the back of the throat

48. Pulp Stones
Rounded depression on a tooth
Calcified masses of dentin
A triangular area located behind the last molar
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth

49. Gingiva
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth
The disc becomes displaced
Composed of mucosa and surrounds the necks of the teeth
Inside of the maxillary teeth

50. Angle of the Mandible
A horseshoe shaped groove that follow the curve of the dental arch
The crown of the tooth that is nearest the incisal edge near the anterior tooth
Where the ramus meets the body of the mandible on the outside border
Largest facial bone with two sections joined at the median suture