Test your basic knowledge |

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. Odontogenesis
9 weeks thru birth
Dividing point of a multi-rooted tooth
Portion of the lips that are red
Origin of the tooth

2. Denticion
Natural teeth in position
Short tubules that seem to crossover to the enamel
Papillae that give the tongue the strawberry effect
Bicuspids

3. Tome's process
Fleshy elevation under the tongue
A junction or center of veins that directly or indirectly drain a vast area
Excess bone in the middle of the palate
Responsible for laying down the enamel matrix into place

4. What are the two ways the TMJs move?
Lift the hyoid bone and assist in opening the mouth
A line that represents the alveolus bone lining the socket
Hinge motion and gliding movement
Tissue fluid surrounding the cell membrane of the odontoblast

5. Ectoderm
Elevates the posterior portion of the tongue and narrows the fauces
Forms into the inner lining of the oral cavitiy and enamel of the teeth
The layer of dentin that surrounds the pulp
Two

6. What are the 4 cranial nerves that ennervate the face and oral cavity
Trigeminal - facial - glossopharyngeal - hypoglossal
Platysma - trapezius - sternocleidomastoid
Pointed or rounded mounds on the crown of the tooth
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

7. Labial-Mental Groove
The groove below the lower lips that separates the lips from the chin
Where the proximal sides of two teeth come together and touch
Follows the length of the body of the mandible past the last tooth and up to the ramus
The development of different forms

8. Foliate Papillae
Raised vertical folds of tissue on the lateral border of the tongue
The area on the crown of the tooth that is nearest the gingival
Pulverizing or chewing surface
Largest of the branches of the external carotid artery; supplies facial structure

9. Mesial
Surface towards the midline
Intervates the anterior maxillary sinus - gingiva - cuspids - laterals - and central incisors
Dentin found between the tubules
Inside of the maxillary teeth

10. Retromolar Area
A triangular area located behind the last molar
Maxillary third molar
Branches off the inferior alveolar artery before intering the mandibular canal
Teeth after cuspids

11. Fibroblasts
To lubricate the oral cavity and to moisten food
Cells From which connective tissue evolve
A rounded area beyond the last posterior maxillary tooth
Wearing away of the incisal or occlusal surfaces of the tooth

12. Cementoblast
Extreme variations from the norm
An extension of an unattached gingiva and the tooth
Cells that form cementum
Retracts or depresses the tongue

13. Where is the palate located?
Extends from the mucogingival junction to the gingival groove
Small dark brushes
Excess dryness of the mouth
Inside of the maxillary teeth

14. What are the four main functions of deciduous teeth?
To bulge of curve outward
Mastication - aids in speech - influence facial structure - chewing surfaces
The development of different tissues
Lining covers inside of the oral cavity

15. Infraorbital Foramen
Branches off the inferior alveolar artery before intering the mandibular canal
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle
Compact bone plate of the facial and lingual surfaces
Opening in the mouth below the orbit on the maxillary bone

16. Internal Carotid Artery
Healthy gingival tissue with an orange texture
Small curved lines that run parellel to the CEJ
Supplies blood to the brain and the eyes
An enclosed area that matures into dentin - cementum and pulp

17. Fissure
Located on the inside of the body of the ramus
Resulting from an imperfect union where the lobes come together
Supplies blood to the roots and periodontal ligaments of the interior teeth
Occlusal surface of the posterior tooth

18. Function of Geneoglossus?
The mandibular first premolar
Natural teeth in position
Retracts or depresses the tongue
Small dark brushes

19. What is the maxillary cuspid known as?
Study of the structure and form of the teeth
Joined at the midline and are often referred to as the median Palatine suture
The cornerstone of the mouth
Resists forces that try to pull the tooth outward

20. lst and second premolars
Small head - low nasal bridge - thin upper lip - small mandible
Teeth after cuspids
Retracts or depresses the tongue
Enamel is thinner - pulp chamber is smaller -

21. Stensens' Duct (aka Parotid)

22. Incisal Edge
Tissue covering the alveolar processes
Outside surface Which is towards the lips
Second teeth next to central incisors
Biting edge of the teeth

23. Purpose of premolars
Portion of the lips that are red
Used to pulverize food
Canal or passage for fluid
Forms the bulk of the tooth

24. Histology
The study of the microscopic structure and functions of tissues
Curve outward
Assist in depressing the mandible and elevating the tongue
Largest papilla - mushroom shaped and are anterior to the sulcus terminalis in a row of 8 to 10

25. How much saliva do the salivary glands produce in 24 hours?
Three bulges on the incisal edge
2 to 3 pints
Middle line of the teeth
A small projection in the middle of the upper lip

26. What are the four major muscles of facial expression
Resists forces that try to pull the tooth outward
Orbicularis oris - buccinator - mentalis - zygomatic major
Teeth will not erupt in proper position
Cluster of tissue that manufactures and secrets fluid

27. What teeth do the deciduous (baby) tooth not include?
No bicuspids/ no 3rd molars
The corners of the mouth where the top and bottom lip meet
Elevated are of enamel that forms the Mesial and distal borders
H20 - mucin - organic salts and digestive enzymes

28. Dental Lamina
When the surface of the teeth becomes grooved
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein
Assist in the movement and functioning of the tongue
Growth from the oral epithelium that gives rise to the tooth buds

29. What are the three muscles of the neck?
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine
Platysma - trapezius - sternocleidomastoid
Covering over the enamel that is left over from the epithelium ameloblasts
Palatoglossus - palatopharyngeal

30. Incisive Nerve branch
2 to 3 pints
Allow flexibility during mastication - speech
Intervating the anterior teeth and the labial gingiva
Retracts the tongue and raises the tip of the tongue

31. Cusps
Extends from the mucogingival junction to the gingival groove
Ligaments and muscles of mastication
Pointed or rounded mounds on the crown of the tooth
Mastication - aids in speech - influence facial structure - chewing surfaces

32. Epithelial Attachment
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
Drains the maxiallary artery and superficial temporal arteries
Creates the wall of the dentinal tubule
The gingiva in the floor of the gingival sulcus that attaches to the enamel

33. Pterygoid plexus of the veins
Dentin found between the tubules
A junction or center of veins that directly or indirectly drain a vast area
Healthy gingival tissue with an orange texture
Biting edge of the teeth

34. Alveolar Mucosa
No bicuspids/ no 3rd molars
Draws down the mandible and corners of the mouth
Short tubules that seem to crossover to the enamel
Mucosa that covers the alveolar bone

35. What are the intrinsical muscles of the tongue responsible for?
What divides the tongue in half and runs from the base to the tip of the tongue
Shaping the tongue during speech - mastication and swallowing
Chewing and swallowing food
No bicuspids/ no 3rd molars

36. Filiform Papillae
Elevated are of enamel that forms the Mesial and distal borders
Follows the inside of the ramus and the body of the mandible
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue

37. Gums
Temporal muscles - masseter muscles - internal pterygoid muscles - external pterygoid muscles
Portion of the lips that are red
Innervates the orbicular oculi - the area around the eye - and the area around and behind the zygomatic arch
Tissue covering the alveolar processes

38. Occlusion third
Joined at the midline and are often referred to as the median Palatine suture
Occlusal surface of the posterior tooth
Corners of the mouth
Supplies blood to the face and oral cavity

39. Posterior Teeth
The teeth located at the back of the mouth
Disk that acts like a cushion between the temporal bone and the condyloid process
Interdental ligament
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

40. What are the two muscles of the soft palate?
Disk that acts like a cushion between the temporal bone and the condyloid process
2 to 3 pints
Greater - lesser - naso palatine nerves
Palatoglossus - palatopharyngeal

41. Mandibular Foramen
A pocket formed by the soft tissue of cheeks and gingiva
Located on the inside of the body of the ramus
Duct located on the parotid papilla
Two cortical bone plates that come together between each tooth

42. Ala of the Nose
The outer edge of the nostril
To bulge of curve outward
Excess bone formations under the tongue on the alvellar bone
Secrete saliva to assist in process of digestion

43. Mantle Dentin
Cells From which connective tissue evolve
Trigeminal - facial - glossopharyngeal - hypoglossal
Skeletal or soft tissue structures used as reference points in describing locations of anatomical structures or taking measurements
The first predentin that is formed and matures within the tube

44. Xygomatic bones
Pulverizing or chewing surface
Cheek bones--the most breakable bone in the body
Pointed elongations of the pulp
The largest of three openings located in the posterior region of the hard palate

45. Attrition
Natural teeth in position
Wearing away of the incisal or occlusal surfaces of the tooth
Vertical groove on the midline of the upper lip
More common in girls--the failure of the palatal shelves to fuse with the primary palate (1 in 2500 births)

46. Lines of Retzius
Pulverizing or chewing surface
Depresses the tongue
Incremental lines around the layers of the enamel matrix
Formed by the uniting of lobes during development of crown

47. Mesenchyme Tissue
Resulting from an imperfect union where the lobes come together
A duct that empties into the mouth thru the parotid papilla - Parotid gland goes with Stensen's duct
A pocket formed by the soft tissue of cheeks and gingiva
Primary embryonic mesoderm layer that develops during the morpho differentiation period

48. Submandibular Glands

49. Paranasal
Of or pertaining to area surrounding naval cavity
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle
Fleshy elevation under the tongue
Layers of tooth tissue become calcified

50. Maxillary Sinus
Forms a large cavity above the roots of the maxillary molars
Molars
Largest facial bone with two sections joined at the median suture
The groove below the lower lips that separates the lips from the chin