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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.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

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. Gingival Groove
A bony plate covered with keratinized tissue located in the anterior portion of the palate
Dividing point of a multi-rooted tooth
The first predentin that is formed and matures within the tube
The line of demarcation between the attached gingiva and the marginal gingiva

2. What are the two ways the TMJs move?
The study of the microscopic structure and functions of tissues
The teeth located at the back of the mouth
A raised white line that runs parallel to where the teeth meet on the buccal mucosa
Hinge motion and gliding movement

3. Histo Differentation
Wings of the sphenoid bone
Elevates the posterior portion of the tongue and narrows the fauces
The bone that separates the root on a tooth
The development of different tissues

4. Gland
Bone that surrounds the root of the tooth
Largest facial bone with two sections joined at the median suture
Folds of tissue that extend horizontally from the uvula to the base of the tongue
Cluster of tissue that manufactures and secrets fluid

5. When do the tooth buds appear?
Cluster of tissue that manufactures and secrets fluid
Intervating the anterior teeth and the labial gingiva
Week 11
Elevated are of enamel that forms the Mesial and distal borders

6. Lingual Frenum
A bony projection that separates each socket
A line of tissue that extends from the tongue to the floor of the mouth
Bluish veins that run the length of the tongue
Temporal muscles - masseter muscles - internal pterygoid muscles - external pterygoid muscles

7. Sharpey's Fibers
Resulting from an imperfect union where the lobes come together
The largest of three openings located in the posterior region of the hard palate
Outside surface Which is towards the lips
Acts as anchors between the alveolar bone and the tooth

8. What are the 4 taste senses and where are they located?
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue
Upper arch of the teeth
Draws down the mandible and corners of the mouth
Narrow long enamel tuft

9. Imbracation Lines
Portion of the lips that are red
Small curved lines that run parellel to the CEJ
Peg shaped crown with a smooth surface
Dividing point of a multi-rooted tooth

10. Maxillary Tuberosity
Occurs in unusual ways and distorted crowns may appear
A rounded area beyond the last posterior maxillary tooth
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
Bluish veins that run the length of the tongue

11. Symphysis
The development of different cells
Cut - tear - and grind food
When cells rapidly increase in number
A concave area where two bones of the mandible are fused in the center of the mandible on the external surface

12. Mandible Arch
Lower arch of the teeth
Functions the same as the alveolar cfg; originate in alveolar bone
Peg shaped crown with a smooth surface
Extends from the mucogingival junction to the gingival groove

13. Filiform Papillae
Convex area on the lingual surface near gingiva
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue
Separation of the upper lip ( 1 of 1000 live births)
The cornerstone of the mouth

14. What ligament is retained the longest during periodontal disease?
Interdental ligament
Narrow long enamel tuft
Intervating the anterior teeth and the labial gingiva
Middle line of the teeth

15. Triangular Ridge
Supplies blood to the face and oral cavity
Separates the developing oral cavities from the nasal cavities
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface
Supplies blood to the roots and periodontal ligaments of the molars and premolars

16. Nasal-Labial Groove
The layer of dentin that surrounds the pulp
Bifurcated/ 5 cusps
Composed of mucosa and surrounds the necks of the teeth
A faint line going from the ala of the nose to the corner of the mouth

17. Fimbriated Folds
Greater - lesser - naso palatine nerves
9 weeks thru birth
Convex area on the lingual surface near gingiva
Folds of tissue to the the lingual veins

18. Morpho differentiation
The cornerstone of the mouth
The development of different forms
Small head - low nasal bridge - thin upper lip - small mandible
Largest division of the trigeminal nerve

19. Fibroblasts
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
Cells From which connective tissue evolve
Allow flexibility during mastication - speech
The inner surface of the lips

20. Dental Arteries
Middle two teeth in the mouth
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged
Aid in attaching the gingiva to the alveolar bone
Supplies blood to the roots and periodontal ligaments of the molars and premolars

21. Parotid Papilla
Small yellowish glands on the labial mucosa
Narrow long enamel tuft
A flap of tissue on the on the buccal mucosa
Exits the mandibular canal at the mental foramen and supplies the chin and lower lip

22. Mesial
Drains the floor of the mouth
Creates the wall of the dentinal tubule
Surface towards the midline
A line of demarcation between the attached gingiva and alveolar mucosa

23. Cleft Palate
Drains the maxiallary artery and superficial temporal arteries
Small head - low nasal bridge - thin upper lip - small mandible
More common in girls--the failure of the palatal shelves to fuse with the primary palate (1 in 2500 births)
Retracts or depresses the tongue

24. Function of Geniohyoid
Inside of the maxillary teeth
Of or pertaining to area surrounding naval cavity
Bluish veins that run the length of the tongue
Pulls the hyoid bone and the tongue anteriorly

25. What is Ankyloglossia and who can treat it / What is the treatment called?
H20 - mucin - organic salts and digestive enzymes
A condition where the lower frenum attachment is very short/DDS/frenectomy
Fifth cusp located on the mesial surface lingual surface of maxillary first molars
The moveable attachment of the muscle

26. Embrasure
Triangular space in the gingival direction when two adjacent teeth are in contact
Teeth will not erupt in proper position
A period of both primary teeth and permeant teeth are in the dentition
Drains the superficial veins of the face and neck into the subclavian vein

27. Enamel Lamellae
Enamel forming cells
Narrow long enamel tuft
Full deep rich sound in nasal cavity
Band of fibrous tissue which attaches muscle to bone

28. Pterygoid plexus of the veins
A junction or center of veins that directly or indirectly drain a vast area
Skeletal or soft tissue structures used as reference points in describing locations of anatomical structures or taking measurements
Largest division of the trigeminal nerve
Growth from the oral epithelium that gives rise to the tooth buds

29. Palatine Raphe
Primary embryonic mesoderm layer that develops during the morpho differentiation period
A period of both primary teeth and permeant teeth are in the dentition
The slightly raised line extending down the middle of the hard palate
Tissue covering the alveolar processes

30. Marginal Ridges
Largest division of the trigeminal nerve
The development of different tissues
Elevated are of enamel that forms the Mesial and distal borders
The development of different forms

31. Develop Mental Groove
(free gingiva) surrounds the teeth
Calcified masses of dentin
Demonstrates a disturbance in the body metabolism
Formed by the uniting of lobes during development of crown

32. Interdental Ligament Group
6 months/3years
Composed of mucosa and surrounds the necks of the teeth
Innervates the orbicular oculi - the area around the eye - and the area around and behind the zygomatic arch
Resist rotational forces and hold teeth in inter-proximal contact

33. Maxilla
Elevated area fo enamel that extends obliquely across the occlusal surface of the tooth
Moves the head backward and laterally
Largest facial bone with two sections joined at the median suture
The cornerstone of the mouth

34. Xygote
When the tissue becomes inflamed
When cells rapidly increase in number
Excess bone in the middle of the palate
Tissue fluid surrounding the cell membrane of the odontoblast

35. Posterior Tonsillar Pillar
Platysma - trapezius - sternocleidomastoid
Set of arches found farther in the back of the throat
The first predentin that is formed and matures within the tube
Elevated area fo enamel that extends obliquely across the occlusal surface of the tooth

36. What are the eight landmarks of the face?
The development of different tissues
Ala of the nose - naso-labial groove - philtrum - vermilion border - vermilion zone - turbercle of the lip - labial commissures - labio-mental grooves
Extends from the mucogingival junction to the gingival groove
Forms the bulk of the tooth

37. Contour Lines of Owen
Inner portion of the enamel rod
Convex area on the lingual surface near gingiva
Demonstrates a disturbance in the body metabolism
Pulverizing or chewing surface

38. Concave
Indented
Band of fibrous tissue which attaches muscle to bone
Where the ectoderm layer matures into the enamel
Slight ridges on the cervical third of certain teeth that extend mesiodistally

39. Internal Oblique Ridge
A flap of tissue on the on the buccal mucosa
Separates the developing oral cavities from the nasal cavities
Band of fibrous tissue which attaches muscle to bone
Follows the inside of the ramus and the body of the mandible

40. When do the primary teeth begin erupting and are fully erupted?
Follows the length of the body of the mandible past the last tooth and up to the ramus
Calcified masses of dentin
6 months/3years
The development of different forms

41. Mandibular Foramen
Canal or passage for fluid
Located on the inside of the body of the ramus
Duct located on the parotid papilla
Drains the maxiallary artery and superficial temporal arteries

42. Cleft Lip
Separation of the upper lip ( 1 of 1000 live births)
The crown of the tooth that is nearest the incisal edge near the anterior tooth
Creates the wall of the dentinal tubule
Compact bone plate of the facial and lingual surfaces

43. When does the maxillary first molar erupt?
Initiation of the tooth begins
6 years old
Two smaller openings located behind the greater Palatine Foramen in the posterior region of the hard palate
The tip of the chin

44. Posterior Teeth
The teeth located at the back of the mouth
Band of fibrous tissue which attaches muscle to bone
Tooth emerges from gum tissue and becomes visible
Oval structures that are located on the dorsal surface of the tongue

45. Vermilion Border
H20 - mucin - organic salts and digestive enzymes
Trigeminal - facial - glossopharyngeal - hypoglossal
Wearing away of the incisal or occlusal surfaces of the tooth
Portion of the lips where the skin meets the vermilion zone

46. Lacrimal Bones
Raised vertical folds of tissue on the lateral border of the tongue
Anterior to the ethmoid bone and part of the orbit (corners of the eye)
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein
The groove below the lower lips that separates the lips from the chin

47. Maxillary vein
Portion of the lips that are red
Drains the Pterygoid plexus of the veins
When the tissue becomes inflamed
The disc becomes displaced

48. Tubercle of the Lip
A small projection in the middle of the upper lip
The area on the crown of the tooth that is nearest the gingival
Permeante teeth replace the primary teeth
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

49. Maxillary Artery
A faint line going from the ala of the nose to the corner of the mouth
Oval structures that are located on the dorsal surface of the tongue
Largest of the branches of the external carotid artery; supplies facial structure
Portion of the lips where the skin meets the vermilion zone

50. Ligament
Portion of the lips that are red
Band of fibrous tissue which attaches bone to bone
12 years
Pulverizing or chewing surface