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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. Purpose of premolars
Small bony projections surrounding the lingual foramen
The largest of three openings located in the posterior region of the hard palate
Used to pulverize food
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein

2. Circumpulpal Dentin
The layer of dentin that surrounds the pulp
Mastication - aids in speech - influence facial structure - chewing surfaces
Small curved lines that run parellel to the CEJ
Union of two triangular ridges that produce a single ridge of elevation that cross the occlusal surface of posterior teeth

3. Vermilion Border
Mucosa that covers the alveolar bone
Portion of the lips where the skin meets the vermilion zone
Forms the remaining 2/3 of the hard and soft palate uvula
Largest facial bone with two sections joined at the median suture

4. Hyoid Bone
A projection that extends off the back of the soft palate
Outside surface Which is towards the lips
Teeth will not erupt in proper position
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

5. Fungiform Papillae
32
Separates the developing oral cavities from the nasal cavities
Triferacated
Papillae that give the tongue the strawberry effect

6. Cusp of Caribelli
Acts as anchors between the alveolar bone and the tooth
Fifth cusp located on the mesial surface lingual surface of maxillary first molars
2 to 3 pints
Three cusps/ trifurcated

7. What is saliva made of?
Small yellowish glands on the labial mucosa
A small projection in the middle of the upper lip
Band of fibrous tissue which attaches bone to bone
H20 - mucin - organic salts and digestive enzymes

8. Morpho Differentiation
Where the ramus meets the body of the mandible on the outside border
Forming organ takes shape and resembles the shape of a bell
Cells that form dentin
Appears to be loosely attached - covering the alveolar bone.

9. Alveolar Mucosa
Healthy gingival tissue with an orange texture
Forms a large cavity above the roots of the maxillary molars
Appears to be loosely attached - covering the alveolar bone.
The outer edge of the nostril

10. Anomalies
Primary embryonic mesoderm layer that develops during the morpho differentiation period
Extreme variations from the norm
Largest of the branches of the external carotid artery; supplies facial structure
Small yellowish glands on the labial mucosa

11. What are the three muscles of the neck?
Platysma - trapezius - sternocleidomastoid
Primitive mouth
Drains the maxiallary artery and superficial temporal arteries
Small yellowish glands on the labial mucosa

12. Lingual Frenum
Band of fibrous tissue which attaches muscle to bone
A line of tissue that extends from the tongue to the floor of the mouth
The line of demarcation between the attached gingiva and the marginal gingiva
Origin of the tooth

13. What is the latin word for molar?
2 to 3 pints
Located behind the ramus of the mandible and branches into five arteries
Molaris meaning millstone
Portion of the lips that are red

14. 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
Cut - tear - and grind food
Duct located on the parotid papilla
Found only in multi-rooted teeth and resists rotational forces

15. Mastoid process
Growth from the oral epithelium that gives rise to the tooth buds
Bony projection found on the bottom border of the temporal bone
A line that represents the alveolus bone lining the socket
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue

16. How much saliva is produced daily?
9 months (5 months ultrasound to tell sex)
1500 millimeters
Extends interiorly from the pterygopalatine nerve and exits thru the incisive foramen
Small bony projections surrounding the lingual foramen

17. TMJ bones are bathed In what solution?
Maxillary third molar
Synovial fluid
Resulting from an imperfect union where the lobes come together
Function to resist rotational forces and tilting

18. Occlusion third
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine
Occlusal surface of the posterior tooth
Maxillary first molar
32

19. Parotid glands
Extreme variations from the norm
A concave area where two bones of the mandible are fused in the center of the mandible on the external surface
The largest of the salivary glands which lie just below and in front of the ear
Aid in attaching the gingiva to the alveolar bone

20. Cervical line
Drains the Pterygoid plexus of the veins
Slight ridges on the cervical third of certain teeth that extend mesiodistally
A triangular area located behind the last molar
Divides the crown and the root

21. What is Ankyloglossia and who can treat it / What is the treatment called?
Interdental ligament
Forms after the completion of the apical foramen
A condition where the lower frenum attachment is very short/DDS/frenectomy
Wearing away of the incisal or occlusal surfaces of the tooth

22. Alveolar Mucosa
Mucosa that covers the alveolar bone
An enclosed area that matures into dentin - cementum and pulp
Layers of tooth tissue become calcified
Lining covers inside of the oral cavity

23. Interradicular Septum
Draws the hyoid bone superiorly and posteriorly and stabilizes it
Slight ridges on the cervical third of certain teeth that extend mesiodistally
The bone that separates the root on a tooth
Origin of the tooth

24. Ala of the Nose
The outer edge of the nostril
Small head - low nasal bridge - thin upper lip - small mandible
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip
H20 - mucin - organic salts and digestive enzymes

25. Internal Jugular Vein
Portion of the lips where the skin meets the vermilion zone
Compact bone plate of the facial and lingual surfaces
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein
Curve outward

26. Soft Palate
Bifurcated/ 5 cusps
Covers muscle tissue in the posterior portion of the palate
Trigeminal - facial - glossopharyngeal - hypoglossal
Separation of the upper lip ( 1 of 1000 live births)

27. Dentoperiosteal Fiber Groups
Vertical groove on the midline of the upper lip
Fleshy elevation under the tongue
Supportive fibers that anchor the tooth to the bone
A rounded area beyond the last posterior maxillary tooth

28. Occlusal
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine
A pocket formed by the soft tissue of cheeks and gingiva
Pulverizing or chewing surface
Triangular space in the gingival direction when two adjacent teeth are in contact

29. Xerostomia
Synovial fluid
Excess dryness of the mouth
Band of fibrous tissue which attaches bone to bone
Bifurcated/ 5 cusps

30. Styloid Process
A small projection in the middle of the upper lip
Sharp projection on the under surface of the temporal bone
Looking at the border of the tongue
Assists in elevating the chin

31. Pulp horns
A rounded area beyond the last posterior maxillary tooth
Chewing and swallowing food
Pointed elongations of the pulp
Week 12

32. Pterygoid Process
Primitive mouth
Wings of the sphenoid bone
Mucosa that covers the alveolar bone
Dentin found between the tubules

33. Palatine Rugae
The ridges that run horizontally across the hard palate behind the incisive papilla
Outside surface Which is towards the lips
The development of different tissues
Supplies blood to the brain and the eyes

34. Hard Palate
Linear elevation of the tooth
Upper arch of the teeth
Enamel is thinner - pulp chamber is smaller -
A bony plate covered with keratinized tissue located in the anterior portion of the palate

35. Incisal third
Raised vertical folds of tissue on the lateral border of the tongue
The moveable attachment of the muscle
The crown of the tooth that is nearest the incisal edge near the anterior tooth
Clear fluid secreted by the salivary and mucous glands throughout the mouth

36. How many teeth are in the Primary teeth?
Bifurcated/ 5 cusps
The development of different cells
Raised vertical folds of tissue on the lateral border of the tongue
20

37. Agenesis
H20 - mucin - organic salts and digestive enzymes
4/5 cusps/ 3 roots
Study of the structure and form of the teeth
Occurs in unusual ways and distorted crowns may appear

38. What are the 2 sets of teeth?
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth
Cells From which connective tissue evolve
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged
Primary and permanent

39. Bud stage
Supplies blood to the roots and periodontal ligaments of the interior teeth
Initiation of the tooth begins
Small raised projections where taste buds are located
Primary and permanent

40. Xygote
Forms the bulk of the tooth
A raised white line that runs parallel to where the teeth meet on the buccal mucosa
Cells that form dentin
When cells rapidly increase in number

41. Incisive Papilla
A raised area of tissue laying behind the maxillary central incisors on the hard palate
Functions the same as the alveolar cfg; originate in alveolar bone
Drains the facial structures beginning near the eye and descending toward the mandible
Corners of the mouth

42. Odontogenesis
Third tooth from the midline
Origin of the tooth
Place where the groove comes together or fissures cross
Assist in the movement and functioning of the tongue

43. Lingual Veins
Bi-cuspids
The connective tissue of the marginal gingiva
Drains the facial structures beginning near the eye and descending toward the mandible
Bluish veins that run the length of the tongue

44. Horizontal Fiber Group
Radiates from the developmental groove
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth
Functions the same as the alveolar cfg; originate in alveolar bone
Portion covered with cementum

45. Stomedeum
Elevates the posterior portion of the tongue and narrows the fauces
Slight ridges on the cervical third of certain teeth that extend mesiodistally
Primitive mouth
Bi-cuspids

46. Alveolar Crest Fiber Group
A line of tissue that extends from the tongue to the floor of the mouth
Function to resist rotational forces and tilting
The slightly raised line extending down the middle of the hard palate
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue

47. Fordyce's Spots
Supplies blood to the roots and periodontal ligaments of the interior teeth
Distends the ramus - enters the mandibular foramen and bifurcates around the first premolar tooth to form the incisive and the mental arteries
Bone that surrounds the root of the tooth
Small yellowish glands on the labial mucosa

48. Ectoderm
Natural teeth in position
Hinge motion and gliding movement
Forms into the inner lining of the oral cavitiy and enamel of the teeth
Distends the ramus - enters the mandibular foramen and bifurcates around the first premolar tooth to form the incisive and the mental arteries

49. Anterior Tonsillar Pillar
Folds of tissue that extend horizontally from the uvula to the base of the tongue
Raised vertical folds of tissue on the lateral border of the tongue
Layers of tooth tissue become calcified
Calcified masses of dentin

50. Labial Commissures
Forming organ takes shape and resembles the shape of a bell
The slightly raised line extending down the middle of the hard palate
The corners of the mouth where the top and bottom lip meet
The bone that separates the root on a tooth