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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.
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. Peritubular Dentin
Canal or passage for fluid
Creates the wall of the dentinal tubule
Largest division of the trigeminal nerve
Developmental segment of a tooth

2. Endoderm
Respiratory system - digestive system and glandular organs
Cells develop into different tissues
Middle line of the teeth
Molars

3. How many teeth are in the permanent set of teeth?
The connective tissue of the marginal gingiva
Small yellowish glands on the labial mucosa
Exits the mandibular canal at the mental foramen and supplies the chin and lower lip
32

4. Quadrants
Supplies the gingival - maxillary sinus - cheeks - and maxillary molars with the exception of the mesial buccal root of the first molar
Quarters of the teeth
Slight ridges on the cervical third of certain teeth that extend mesiodistally
A duct that empties into the mouth thru the parotid papilla - Parotid gland goes with Stensen's duct

5. TMJ bones are bathed In what solution?
Anterior to the ethmoid bone and part of the orbit (corners of the eye)
Synovial fluid
Wings of the sphenoid bone
Elevates the posterior portion of the tongue and narrows the fauces

6. Posterior Teeth
Small dark brushes
The teeth located at the back of the mouth
The area on the crown of the tooth that is nearest the gingival
Drains the maxiallary artery and superficial temporal arteries

7. Morphology
Study of the structure and form of the teeth
The mandibular first premolar
When the dentin is exposed
Tissue fluid surrounding the cell membrane of the odontoblast

8. Gingiva
A dense tissue covered with mucous membrane that can withstand chewing
Mastication - aids in speech - influence facial structure - chewing surfaces
To bulge of curve outward
Cells that form cementum

9. What is origin and What is insertion?
Mastication - aids in speech - influence facial structure - chewing surfaces
Retracts or depresses the tongue
Anterior to the ethmoid bone and part of the orbit (corners of the eye)
Origin - fixed point - insertion - movable point

10. What are the 12 landmarks of the oral cavity?

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11. Pulpitis
Initiation of the tooth begins
When the tissue becomes inflamed
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface
Stained growth rings in dentin

12. Fibroblasts
Cells From which connective tissue evolve
12 years
To lubricate the oral cavity and to moisten food
Drains the Pterygoid plexus of the veins

13. Histo Differentation
Opening for the ear
To bulge of curve 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
The development of different tissues

14. Interdental Gingiva
Outside surface Which is towards the cheek - on posterior teeth
Interdental ligament
An extension of an unattached gingiva and the tooth
Forming organ takes shape and resembles the shape of a bell

15. If a patient receives toxic agents - how long does it take for their sense of taste to return?
Two smaller openings located behind the greater Palatine Foramen in the posterior region of the hard palate
More common in girls--the failure of the palatal shelves to fuse with the primary palate (1 in 2500 births)
10 days
Genioglossus - hyoglossus - styloglossus - palatoglossus

16. Sublingual Caruncles
Shed from the oral cavity
Resists forces that try to pull the tooth outward
Creates the wall of the dentinal tubule
2 small raised folds of tissue where the lingual frenum attaches

17. Parotid glands
Largest division of the trigeminal nerve
Disk that acts like a cushion between the temporal bone and the condyloid process
Drains the maxiallary artery and superficial temporal arteries
The largest of the salivary glands which lie just below and in front of the ear

18. Eruption
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth
Act to maintain the gingival integrity of the marginal gingiva
Tooth emerges from gum tissue and becomes visible
Scroll like bones outside the nasal cavaties

19. Alveologingival Fiber Groups
Aid in attaching the gingiva to the alveolar bone
Slight ridges on the cervical third of certain teeth that extend mesiodistally
Compact bone plate of the facial and lingual surfaces
Located behind the ramus of the mandible and branches into five arteries

20. External Oblique Ridge
Follows the length of the body of the mandible past the last tooth and up to the ramus
Study of the structure and form of the teeth
Union of two triangular ridges that produce a single ridge of elevation that cross the occlusal surface of posterior teeth
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

21. What is the latin word for molar?
Molaris meaning millstone
The space between the unattached gingiva and the tooth
Stained growth rings in dentin
Second teeth next to central incisors

22. Stomedeum
Drains the facial structures beginning near the eye and descending toward the mandible
Primitive mouth
9 weeks thru birth
Substances between cells

23. Dentinal Hypersensitivity
Pulls the hyoid bone and the tongue anteriorly
When the dentin is exposed
Tooth emerges from gum tissue and becomes visible
The space between the unattached gingiva and the tooth

24. Internal Jugular Vein
Week 11
9 weeks thru birth
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein
A line that represents the alveolus bone lining the socket

25. When does the maxillary second molar erupt?
The moveable attachment of the muscle
Hinge motion and gliding movement
12 years
Tributary of the facial vein which connects the facial vein to the pterygoid plexus of the veins

26. Sulingual Folds
Begin at the caruncles on either side of the frenum and run backward to the base of the tongue
Supportive fibers that anchor the tooth to the bone
Moves the head backward and laterally
Second teeth next to central incisors

27. Intertubular Dentin
Supplies blood to the temporal muscle - masseter muscle - pterygoid muscle and buccanator
Cells From which connective tissue evolve
Dentin found between the tubules
Elevated area fo enamel that extends obliquely across the occlusal surface of the tooth

28. Enamel Tufts
Elevated are of enamel that forms the Mesial and distal borders
Triferacated
Small dark brushes
The connective tissue of the marginal gingiva

29. Lines of Retzius
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
Incremental lines around the layers of the enamel matrix
Upper arch of the teeth
No bicuspids/ no 3rd molars

30. Mental Artery
Exits the mandibular canal at the mental foramen and supplies the chin and lower lip
Initiation of the tooth begins
Mucosa that covers the alveolar bone
Causes a thickening of the cementum around the apex

31. Neonatal line
The outer edge of the nostril
Incremental line indicating trauma of birth
4th week
Largest division of the trigeminal nerve

32. Embryo
Union of two triangular ridges that produce a single ridge of elevation that cross the occlusal surface of posterior teeth
An enclosed area that matures into dentin - cementum and pulp
Two weeks thru 8th week
Small linear depression

33. Maxilla
Mandibular central incisors
Largest facial bone with two sections joined at the median suture
Extends interiorly from the pterygopalatine nerve and exits thru the incisive foramen
Acts as anchors between the alveolar bone and the tooth

34. Labial Commissures
The corners of the mouth where the top and bottom lip meet
Intervates the anterior maxillary sinus - gingiva - cuspids - laterals - and central incisors
Formed by the fibroblast cells and secures the tooth in the socket
Separates the developing oral cavities from the nasal cavities

35. Evanesce
Interdental ligament
To dissolve
Composed of mucosa and surrounds the necks of the teeth
9 months (5 months ultrasound to tell sex)

36. What are the 4 cranial nerves that ennervate the face and oral cavity
Cells that form cementum
Scroll like bones outside the nasal cavaties
Largest division of the trigeminal nerve
Trigeminal - facial - glossopharyngeal - hypoglossal

37. Attached Gingiva
Three cusps/ trifurcated
Circle and tighten the gingival margin around the neck of the tooth
Molaris meaning millstone
Extends from the mucogingival junction to the gingival groove

38. Resonance
Buccal - lingual - and inferior alveolar
The portion of the tooth that meets the gingiva
Full deep rich sound in nasal cavity
Acts as anchors between the alveolar bone and the tooth

39. Anterior Alveolar Nerve
A duct that empties into the mouth thru the parotid papilla - Parotid gland goes with Stensen's duct
The fixed attachment of a muscle
Intervates the anterior maxillary sinus - gingiva - cuspids - laterals - and central incisors
Tubules that pass through the entire surface of the dentin

40. If Palate not fused
Teeth will not erupt in proper position
A bony projection that separates each socket
Anterior to the ethmoid bone and part of the orbit (corners of the eye)
Corners of the mouth

41. Cementoblast
Extends from the mucogingival junction to the gingival groove
A shallow v-shaped depression located below the bottom of the nose and above the lips
Hinge motion and gliding movement
Cells that form cementum

42. Dentinal Tubules
Triferacated
Supplies blood to the brain and the eyes
Inside surface Which is towards the tongue - on anterior teeth
Tubules that pass through the entire surface of the dentin

43. What is saliva made of?
Vestibule - vestibule fornix - labial mucosa - buccal mucosa - parotid papilla - Stenson's duct - linea alba - Fordyce's spots - alveolar mucosa - gingiva - labial frenum - buccal frenum
H20 - mucin - organic salts and digestive enzymes
Biting edge of the teeth
Begin at the caruncles on either side of the frenum and run backward to the base of the tongue

44. Alveolar Mucosa
Smaller branch that ennervates the soft palate uvula and tonsils
Appears to be loosely attached - covering the alveolar bone.
Outside surface Which is towards the cheek - on posterior teeth
Scroll like bones outside the nasal cavaties

45. When do the tooth buds appear?
Week 11
Excess bone in the middle of the palate
A condition where the lower frenum attachment is very short/DDS/frenectomy
Radiates from the developmental groove

46. Interdental Ligament Group
A period of both primary teeth and permeant teeth are in the dentition
Resist rotational forces and hold teeth in inter-proximal contact
Cheek bones--the most breakable bone in the body
A small projection in the middle of the upper lip

47. What is the longest tooth in the mandibular arch?
Cut - tear - and grind food
Vertical groove on the midline of the upper lip
Scroll like bones outside the nasal cavaties
The mandibular first premolar

48. Function of Stylohyoid
Draws the hyoid bone superiorly and posteriorly and stabilizes it
A small projection in the middle of the upper lip
Small linear depression
Supplies blood to the face and oral cavity

49. Mandibular Artery
Lower arch of the teeth
Branches off the inferior alveolar artery before intering the mandibular canal
An extension of an unattached gingiva and the tooth
Located behind the ramus of the mandible and branches into five arteries

50. Inferior Nasal Conchae
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
Scroll like bones outside the nasal cavaties
Canal or passage for fluid
Temporal muscles - masseter muscles - internal pterygoid muscles - external pterygoid muscles