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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. Articular Disc
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx
Greater - lesser - naso palatine nerves
Buccal - lingual - and inferior alveolar
Also known as meniscus it is a dense fibrous connective tissue that is thicker at the ends and attached to the condyle

2. Frenum
Where the proximal sides of two teeth come together and touch
Portion covered with cementum
Layers of tooth tissue become calcified
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip

3. Lobes
Small yellowish glands on the labial mucosa
Opening in the mouth below the orbit on the maxillary bone
Developmental segment of a tooth
A projection that extends off the back of the soft palate

4. Fetal Alcohol Syndrome symptons
Small head - low nasal bridge - thin upper lip - small mandible
Cheek bones--the most breakable bone in the body
Elevated are of enamel that forms the Mesial and distal borders
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

5. Embryology
The slightly raised line extending down the middle of the hard palate
Supplies blood to the roots and periodontal ligaments of the interior teeth
Small head - low nasal bridge - thin upper lip - small mandible
Study of prenatal growth and the developing process of an individual

6. Facial development
Separates the developing oral cavities from the nasal cavities
Trigeminal - facial - glossopharyngeal - hypoglossal
Forms a large cavity above the roots of the maxillary molars
4th week

7. Rami
The first predentin that is formed and matures within the tube
A raised area of tissue laying behind the maxillary central incisors on the hard palate
Two vertical extensions of the mandible
Enamel forming cells

8. Saliva
6 months/3years
Clear fluid secreted by the salivary and mucous glands throughout the mouth
Appears to be loosely attached - covering the alveolar bone.
Molars

9. What are the 4 maxillary nerve branches?
Drains the Pterygoid plexus of the veins
Natural teeth in position
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine
Middle two teeth in the mouth

10. Quadrants
The largest of the salivary glands which lie just below and in front of the ear
Quarters of the teeth
Moves the head backward and laterally
Dentin found between the tubules

11. Torus
The connective tissue of the marginal gingiva
32
Excess bone in the middle of the palate
Branches off the inferior alveolar artery before intering the mandibular canal

12. Genial Tubercles
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine
Small bony projections surrounding the lingual foramen
Digstric - Mylohyoid - stylohyoid - geniohyoid
The largest of the salivary glands which lie just below and in front of the ear

13. What is the purpose of saliva?
Assists in elevating the chin
A rounded area beyond the last posterior maxillary tooth
To lubricate the oral cavity and to moisten food
Clear fluid secreted by the salivary and mucous glands throughout the mouth

14. Fimbriated Folds
Folds of tissue to the the lingual veins
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein
A dense tissue covered with mucous membrane that can withstand chewing
What divides the tongue in half and runs from the base to the tip of the tongue

15. Incisal Edge
When the dentin is exposed
Biting edge of the teeth
Union of two triangular ridges that produce a single ridge of elevation that cross the occlusal surface of posterior teeth
Study of the structure and form of the teeth

16. Vermilion Zone
To bulge of curve outward
The ridges that run horizontally across the hard palate behind the incisive papilla
Wings of the sphenoid bone
Portion of the lips that are red

17. Osteoclasts
Where the ramus meets the body of the mandible on the outside border
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged
Linear elevation of the tooth
Curve outward

18. Attrition
An enclosed area that matures into dentin - cementum and pulp
Wearing away of the incisal or occlusal surfaces of the tooth
32
Biting edge of the teeth

19. If Palate not fused
Depresses the tongue
Teeth will not erupt in proper position
A condition where the lower frenum attachment is very short/DDS/frenectomy
Supplies blood to the temporal muscle - masseter muscle - pterygoid muscle and buccanator

20. Evanesce
Appears to be loosely attached - covering the alveolar bone.
Retracts or depresses the tongue
To dissolve
Three bulges on the incisal edge

21. Mesoderm
Small dark brushes
A concave area where two bones of the mandible are fused in the center of the mandible on the external surface
Extends from the medial corner of the eye to the nasal cavity
Forms into dentin - cementum and pulp of the teeth

22. Palantine Tonsils
Located in a depressed area between the pillars
Small bony projections surrounding the lingual foramen
Forms into dentin - cementum and pulp 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

23. Secondary Dentin
1500 millimeters
Forms after the completion of the apical foramen
Corners of the mouth
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

24. Interdental Ligament Group
Compact bone plate of the facial and lingual surfaces
Elevated area fo enamel that extends obliquely across the occlusal surface of the tooth
Resist rotational forces and hold teeth in inter-proximal contact
Opening for the ear

25. Uvula
Elevated area fo enamel that extends obliquely across the occlusal surface of the tooth
A raised white line that runs parallel to where the teeth meet on the buccal mucosa
A projection that extends off the back of the soft palate
Chewing and swallowing food

26. Sublingual Caruncles
Outside surface Which is towards the lips
Drains the superficial veins of the face and neck into the subclavian vein
Supplies blood to the face and oral cavity
2 small raised folds of tissue where the lingual frenum attaches

27. When do the primary teeth begin erupting and are fully erupted?
6 months/3years
Of or pertaining to area surrounding naval cavity
Week 11
Short tubules that seem to crossover to the enamel

28. Dentinal Hypersensitivity
Used to pulverize food
The groove below the lower lips that separates the lips from the chin
When the dentin is exposed
Molars

29. Torus Mandibularis
When cells rapidly increase in number
Tributary of the facial vein which connects the facial vein to the pterygoid plexus of the veins
Natural teeth in position
Excess bone formations under the tongue on the alvellar bone

30. How much saliva do the salivary glands produce in 24 hours?
Genioglossus - hyoglossus - styloglossus - palatoglossus
Used to pulverize food
2 to 3 pints
Elevates the posterior portion of the tongue and narrows the fauces

31. Angle of the Mandible
Small curved lines that run parellel to the CEJ
The deepest point of the vestibule
Where the ramus meets the body of the mandible on the outside border
Temporal muscles - masseter muscles - internal pterygoid muscles - external pterygoid muscles

32. Cementoblast
A pocket formed by the soft tissue of cheeks and gingiva
A bat shaped bone which forms the anterior portion of the skull
Cells that form cementum
Opening in the mouth below the orbit on the maxillary bone

33. Fetus
Found near the cementoenamel junction
Ligaments and muscles of mastication
9 weeks thru birth
Origin - fixed point - insertion - movable point

34. Mixed Dentition
Mastication - aids in speech - influence facial structure - chewing surfaces
Dividing point of a multi-rooted tooth
A period of both primary teeth and permeant teeth are in the dentition
Occlusal surface of the posterior tooth

35. Maxillary vein
Causes a thickening of the cementum around the apex
Slight ridges on the cervical third of certain teeth that extend mesiodistally
Drains the Pterygoid plexus of the veins
Lift the hyoid bone and assist in opening the mouth

36. Maxillary Nerve Branch
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx
Clear fluid secreted by the salivary and mucous glands throughout the mouth
Curve outward
Greater - lesser - naso palatine nerves

37. Supplemental Groove
Middle line of the teeth
Depresses the tongue
Radiates from the developmental groove
Study of prenatal growth and the developing process of an individual

38. Alveolar Crest Fiber Group
Narrow long enamel tuft
Two smaller openings located behind the greater Palatine Foramen in the posterior region of the hard palate
Function to resist rotational forces and tilting
Extends from the medial corner of the eye to the nasal cavity

39. Neonatal line
Bone that surrounds the root of the tooth
Incremental line indicating trauma of birth
Of or pertaining to area surrounding naval cavity
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue

40. What are the intrinsical muscles of the tongue responsible for?
Two vertical extensions of the mandible
An overgrowth of the gingival tissue
Shaping the tongue during speech - mastication and swallowing
Small yellowish glands on the labial mucosa

41. Odontoblast
A flap of tissue on the on the buccal mucosa
Cells that form dentin
The slightly raised line extending down the middle of the hard palate
Resulting from an imperfect union where the lobes come together

42. Retromolar Area
Teeth after cuspids
A triangular area located behind the last molar
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids
The gingiva in the floor of the gingival sulcus that attaches to the enamel

43. Lingual Nerve Branch
Joined at the midline and are often referred to as the median Palatine suture
Dividing point of a multi-rooted tooth
Excess bone formations under the tongue on the alvellar bone
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

44. Function of Digastric
Smaller - enamel thicker - pulp chamber is larger is larger - bifurcation wider
Cheek bones--the most breakable bone in the body
What divides the tongue in half and runs from the base to the tip of the tongue
Lift the hyoid bone and assist in opening the mouth

45. Where is the palate located?
Inside of the maxillary teeth
2 to 3 pints
A small projection in the middle of the upper lip
Tissue fluid surrounding the cell membrane of the odontoblast

46. Gums
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth
Bone that surrounds the root of the tooth
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue
Tissue covering the alveolar processes

47. If a patient receives toxic agents - how long does it take for their sense of taste to return?
10 days
1500 millimeters
A projection that extends off the back of the soft palate
Bluish veins that run the length of the tongue

48. Incisive Nerve branch
Cluster of tissue that manufactures and secrets fluid
Intervating the anterior teeth and the labial gingiva
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids
The line of demarcation between the attached gingiva and the marginal gingiva

49. Retro Mandibular Vein
Outside surface Which is towards the cheek - on posterior teeth
Raised vertical folds of tissue on the lateral border of the tongue
The inner surface of the cheeks
Drains the maxiallary artery and superficial temporal arteries

50. Morpho differentiation
Bicuspids
Located behind the ramus of the mandible and branches into five arteries
The development of different forms
Supplies blood to the face and oral cavity