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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. Dentinal Fluid
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars
Tissue fluid surrounding the cell membrane of the odontoblast
Supplies blood to the face and oral cavity
Full deep rich sound in nasal cavity

2. Periodontium
Occurs in unusual ways and distorted crowns may appear
The largest of three openings located in the posterior region of the hard palate
Bifurcated/ 5 cusps
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone

3. Function of Geneoglossus?
Healthy gingival tissue with an orange texture
Retracts or depresses the tongue
Interdental ligament
When the surface of the teeth becomes grooved

4. When do the tooth buds appear?
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth
Week 11
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids
Supplies blood to the roots and periodontal ligaments of the interior teeth

5. What teeth are removed if overcrowding occurs?
Bicuspids
The area on the crown of the tooth that is nearest the gingival
Anterior to the ethmoid bone and part of the orbit (corners of the eye)
Appears to be loosely attached - covering the alveolar bone.

6. Concave
The bone that separates the root on a tooth
Outside surface Which is towards the cheek - on posterior teeth
The slightly raised line extending down the middle of the hard palate
Indented

7. TMJ bones are bathed In what solution?
Synovial fluid
Bifurcated/ 5 cusps
Cut - tear - and grind food
Resist rotational forces and hold teeth in inter-proximal contact

8. Maxillary Tuberosity
A rounded area beyond the last posterior maxillary tooth
Union of two triangular ridges that produce a single ridge of elevation that cross the occlusal surface of posterior teeth
Shed from the oral cavity
An overgrowth of the gingival tissue

9. Interdental Septum
A period of both primary teeth and permeant teeth are in the dentition
A flap of tissue on the on the buccal mucosa
A bony projection that separates each socket
Enamel is thinner - pulp chamber is smaller -

10. Anomalies
Molaris meaning millstone
Extreme variations from the norm
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone
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

11. Apposition
A concave area where two bones of the mandible are fused in the center of the mandible on the external surface
Assist in depressing the mandible and elevating the tongue
Peg shaped crown with a smooth surface
Calcium salts are deposited into formed tooth

12. Epithelial Attachment
Bifurcated/ 5 cusps
The gingiva in the floor of the gingival sulcus that attaches to the enamel
Resist rotational forces and hold teeth in inter-proximal contact
Middle two teeth in the mouth

13. Cortical Bone
Bony projection found on the bottom border of the temporal bone
Mildest form of cleft palate
Compact bone plate of the facial and lingual surfaces
Forms the remaining 2/3 of the hard and soft palate uvula

14. Function of Styloglossus
Origin of the tooth
Located on the inside of the body of the ramus
Follows the inside of the ramus and the body of the mandible
Retracts the tongue and raises the tip of the tongue

15. Tendon
Demonstrates a disturbance in the body metabolism
Band of fibrous tissue which attaches muscle to bone
Substances between cells
Scroll like bones outside the nasal cavaties

16. Vermilion Border
Drains the superficial veins of the face and neck into the subclavian vein
Portion of the lips where the skin meets the vermilion zone
What divides the tongue in half and runs from the base to the tip of the tongue
Bone that surrounds the root of the tooth

17. Mesoderm
Forms into dentin - cementum and pulp of the teeth
Radiates from the developmental groove
Tributary of the facial vein which connects the facial vein to the pterygoid plexus of the veins
Allow flexibility during mastication - speech

18. Alveolar Crest
Convex area on the lingual surface near gingiva
Two cortical bone plates that come together between each tooth
Circle and tighten the gingival margin around the neck of the tooth
The largest of three openings located in the posterior region of the hard palate

19. Develop Mental Groove
Looking at the border of the tongue
Smaller branch that ennervates the soft palate uvula and tonsils
Small raised projections where taste buds are located
Formed by the uniting of lobes during development of crown

20. Circumvallate Papillae
Cells that form cementum
The development of different cells
The slightly raised line extending down the middle of the hard palate
Largest papilla - mushroom shaped and are anterior to the sulcus terminalis in a row of 8 to 10

21. What are the 3 branches of the pterygopalatine nerve branch?
Greater - lesser - naso palatine nerves
The moveable attachment of the muscle
Respiratory system - digestive system and glandular organs
Primary embryonic mesoderm layer that develops during the morpho differentiation period

22. What are the characteristics of permanent teeth?
Radiates from the developmental groove
Enamel is thinner - pulp chamber is smaller -
32
The mandibular first premolar

23. Which molar is the wisdom tooth
Maxillary third molar
Radiates from the developmental groove
Bifurcated/ 5 cusps
Interdental ligament

24. Alveolar Mucosa
Bone that surrounds the root of the tooth
The study of the microscopic structure and functions of tissues
Mucosa that covers the alveolar bone
What divides the tongue in half and runs from the base to the tip of the tongue

25. What are the intrinsical muscles of the tongue responsible for?
An extension of an unattached gingiva and the tooth
Largest of the branches of the external carotid artery; supplies facial structure
Three cusps/ trifurcated
Shaping the tongue during speech - mastication and swallowing

26. Vermilion Zone
Portion of the lips that are red
The development of different cells
The corners of the mouth where the top and bottom lip meet
The slightly raised line extending down the middle of the hard palate

27. Intercellular Substances
The crown of the tooth that is nearest the incisal edge near the anterior tooth
Extends from the medial corner of the eye to the nasal cavity
Trigeminal - facial - glossopharyngeal - hypoglossal
Substances between cells

28. Genial Tubercles
Ligaments and muscles of mastication
Small bony projections surrounding the lingual foramen
Appears to be loosely attached - covering the alveolar bone.
Portion of the root seen in the oral cavity

29. Transverse Ridge
Band of fibrous tissue which attaches muscle to bone
Union of two triangular ridges that produce a single ridge of elevation that cross the occlusal surface of posterior teeth
Small raised projections where taste buds are located
Cut - tear - and grind food

30. Gingiva
Week 12
Triferacated
Composed of mucosa and surrounds the necks of the teeth
Secrete saliva to assist in process of digestion

31. Sublingual Glands
H20 - mucin - organic salts and digestive enzymes
Distends the ramus - enters the mandibular foramen and bifurcates around the first premolar tooth to form the incisive and the mental arteries
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
Maxillary third molar

32. What are the two ways the TMJs move?
Hinge motion and gliding movement
Incremental lines around the layers of the enamel matrix
A dense tissue covered with mucous membrane that can withstand chewing
Oval depression of temporal bone in condyloid process

33. Lingual Vein
Divides the crown and the root
Initiation of the tooth begins
The line of demarcation between the attached gingiva and the marginal gingiva
Drains the floor of the mouth

34. Function of Trapezius
Origin - fixed point - insertion - movable point
Moves the head backward and laterally
Circle and tighten the gingival margin around the neck of the tooth
Assists in elevating the chin

35. Alveologingival Fiber Groups
Pulls the hyoid bone and the tongue anteriorly
Bicuspids
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
Aid in attaching the gingiva to the alveolar bone

36. Nasolacrimal groove
Where the ectoderm layer matures into the enamel
Extends from the medial corner of the eye to the nasal cavity
Natural teeth in position
Week 12

37. Proliferation
The development of different forms
4/5 cusps/ 3 roots
The corners of the mouth where the top and bottom lip meet
Where the ectoderm layer matures into the enamel

38. When does the maxillary first molar erupt?
Distends the ramus - enters the mandibular foramen and bifurcates around the first premolar tooth to form the incisive and the mental arteries
6 years old
To lubricate the oral cavity and to moisten food
Forms a large cavity above the roots of the maxillary molars

39. Mandibular Artery
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx
Located behind the ramus of the mandible and branches into five arteries
Conception thru the first two weeks
Resulting from an imperfect union where the lobes come together

40. Naso Palatine Nerve
Extends interiorly from the pterygopalatine nerve and exits thru the incisive foramen
Portion of the root seen in the oral cavity
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
Small yellowish glands on the labial mucosa

41. Hyoid Bone
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
Drains the maxiallary artery and superficial temporal arteries
The development of different cells
Origin of the tooth

42. Vestibule
Cells develop into different tissues
Forms the bulk of the tooth
A pocket formed by the soft tissue of cheeks and gingiva
The development of different tissues

43. Apical Fiber Group
Resists forces that try to pull the tooth outward
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
Resists intrusive forces that try to push the tooth inwards
Pointed or rounded mounds on the crown of the tooth

44. Glenoid Fossa
Covering over the enamel that is left over from the epithelium ameloblasts
Vertical groove on the midline of the upper lip
Oval depression of temporal bone in condyloid process
Sharp projection on the under surface of the temporal bone

45. Dentinal Tubules
Portion of the root seen in the oral cavity
The inner surface of the cheeks
Supportive fibers that anchor the tooth to the bone
Tubules that pass through the entire surface of the dentin

46. Pterygoid Artery
The connective tissue of the marginal gingiva
The deepest point of the vestibule
Supplies blood to the temporal muscle - masseter muscle - pterygoid muscle and buccanator
Of or pertaining to area surrounding naval cavity

47. External Jugular Vein
Synovial fluid
The study of the microscopic structure and functions of tissues
Depresses the tongue
Drains the superficial veins of the face and neck into the subclavian vein

48. Parotid Papilla
Growth from the oral epithelium that gives rise to the tooth buds
Follows the length of the body of the mandible past the last tooth and up to the ramus
Branches off the inferior alveolar artery before intering the mandibular canal
A flap of tissue on the on the buccal mucosa

49. Mucogingival Junction
Ala of the nose - naso-labial groove - philtrum - vermilion border - vermilion zone - turbercle of the lip - labial commissures - labio-mental grooves
A line of demarcation between the attached gingiva and alveolar mucosa
Anterior to the ethmoid bone and part of the orbit (corners of the eye)
Mandibular central incisors

50. What are the 4 cranial nerves that ennervate the face and oral cavity
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue
Largest of the branches of the external carotid artery; supplies facial structure
Trigeminal - facial - glossopharyngeal - hypoglossal
A pocket formed by the soft tissue of cheeks and gingiva