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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. If Palate not fused
Teeth will not erupt in proper position
A raised white line that runs parallel to where the teeth meet on the buccal mucosa
Three bulges on the incisal edge
Supplies blood to the roots and periodontal ligaments of the molars and premolars

2. Circular Ligament Fiber Groups
20
Circle and tighten the gingival margin around the neck of the tooth
Dentin found between the tubules
Vestibule - vestibule fornix - labial mucosa - buccal mucosa - parotid papilla - Stenson's duct - linea alba - Fordyce's spots - alveolar mucosa - gingiva - labial frenum - buccal frenum

3. Stenson's Duct
Resulting from an imperfect union where the lobes come together
Duct located on the parotid papilla
The corners of the mouth where the top and bottom lip meet
Occlusal surface of the posterior tooth

4. Xerostomia
10 days
Excess dryness of the mouth
Raised vertical folds of tissue on the lateral border of the tongue
Tissue covering the alveolar processes

5. Uvula
Resists intrusive forces that try to push the tooth inwards
Outside surface Which is towards the lips
A projection that extends off the back of the soft palate
When cells rapidly increase in number

6. What are the four major muscles of facial expression
The internal surface at the center of the mandible
Buccal - lingual - and inferior alveolar
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
Orbicularis oris - buccinator - mentalis - zygomatic major

7. What are the four main functions of deciduous teeth?
Mastication - aids in speech - influence facial structure - chewing surfaces
The portion of the tooth that meets the gingiva
The space between the unattached gingiva and the tooth
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue

8. Tendon
Band of fibrous tissue which attaches muscle to bone
Elevated area fo enamel that extends obliquely across the occlusal surface of the tooth
Excess bone in the middle of the palate
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue

9. Fordyce's Spots
A line of tissue that extends from the tongue to the floor of the mouth
Small yellowish glands on the labial mucosa
H20 - mucin - organic salts and digestive enzymes
Innervates the orbicular oculi - the area around the eye - and the area around and behind the zygomatic arch

10. Primary Dentin
Innervates the orbicular oculi - the area around the eye - and the area around and behind the zygomatic arch
Temporal muscles - masseter muscles - internal pterygoid muscles - external pterygoid muscles
Forms the bulk of the tooth
Trigeminal nerve--because it ennervates the maxilla and the mandible

11. Taste Buds
Oval structures that are located on the dorsal surface of the tongue
Largest facial bone with two sections joined at the median suture
Tissue covering the alveolar processes
Supplies blood to the roots and periodontal ligaments of the molars and premolars

12. What are the 3 branches of the pterygopalatine nerve branch?
Trigeminal - facial - glossopharyngeal - hypoglossal
Clear fluid secreted by the salivary and mucous glands throughout the mouth
The space between the unattached gingiva and the tooth
Greater - lesser - naso palatine nerves

13. Mamelons
The corners of the mouth where the top and bottom lip meet
Three bulges on the incisal edge
Incremental line indicating trauma of birth
Week 12

14. Succedaneous teeth
Follows the length of the body of the mandible past the last tooth and up to the ramus
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth
Permeante teeth replace the primary teeth
The tip of the chin

15. Pit
Corners of the mouth
Bluish veins that run the length of the tongue
Place where the groove comes together or fissures cross
Occurs in unusual ways and distorted crowns may appear

16. Retro Mandibular Vein
Mucosa that covers the alveolar bone
Portion of the lips where the skin meets the vermilion zone
Drains the maxiallary artery and superficial temporal arteries
Full deep rich sound in nasal cavity

17. Transverse Ridge
Formed by the fibroblast cells and secures the tooth in the socket
Forms a large cavity above the roots of the maxillary molars
Used to pulverize food
Union of two triangular ridges that produce a single ridge of elevation that cross the occlusal surface of posterior teeth

18. Lingual Veins
Bluish veins that run the length of the tongue
(free gingiva) surrounds the teeth
The connective tissue of the marginal gingiva
Mandibular central incisors

19. Lingual Vein
Cells develop into different tissues
Drains the floor of the mouth
Used to pulverize food
Full deep rich sound in nasal cavity

20. Palatine Raphe
The bone that separates the root on a tooth
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged
4/5 cusps/ 3 roots
The slightly raised line extending down the middle of the hard palate

21. What are the 4 maxillary nerve branches?
Two weeks thru 8th week
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine
A period of both primary teeth and permeant teeth are in the dentition
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface

22. What are the 3 branches of the mandibular nerve branch?
Forms into dentin - cementum and pulp of the teeth
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle
Follows the inside of the ramus and the body of the mandible
Buccal - lingual - and inferior alveolar

23. Labial
Triferacated
Extreme variations from the norm
Outside surface Which is towards the lips
Creates the wall of the dentinal tubule

24. Maxillary Sinus
Forms a large cavity above the roots of the maxillary molars
Supplies blood to the face and oral cavity
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein
The gingiva in the floor of the gingival sulcus that attaches to the enamel

25. Maxilla
Largest facial bone with two sections joined at the median suture
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
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
Shed from the oral cavity

26. What are the eight landmarks of the face?
Ala of the nose - naso-labial groove - philtrum - vermilion border - vermilion zone - turbercle of the lip - labial commissures - labio-mental grooves
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine
A small projection in the middle of the upper lip
The fixed attachment of a muscle

27. What are the largest and strongest of the mandibular teeth
Two vertical extensions of the mandible
Retracts or depresses the tongue
Resulting from an imperfect union where the lobes come together
The mandibular molars

28. Where is the palate located?
Tooth emerges from gum tissue and becomes visible
Inside of the maxillary teeth
Pulverizing or chewing surface
Lining covers inside of the oral cavity

29. Submandibular Glands

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30. Marginal GIngiva
(free gingiva) surrounds the teeth
Excess bone in the middle of the palate
Outside surface Which is towards the cheek - on posterior teeth
Mastication - aids in speech - influence facial structure - chewing surfaces

31. Alveolar Mucosa
The largest of the salivary glands which lie just below and in front of the ear
Chewing and swallowing food
Mucosa that covers the alveolar bone
Vestibule - vestibule fornix - labial mucosa - buccal mucosa - parotid papilla - Stenson's duct - linea alba - Fordyce's spots - alveolar mucosa - gingiva - labial frenum - buccal frenum

32. Periodontium
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone
The tip of the chin
Used to pulverize food
The moveable attachment of the muscle

33. Pterygoid Process
Wings of the sphenoid bone
Small raised projections where taste buds are located
Canal or passage for fluid
Bluish veins that run the length of the tongue

34. Parotid glands
Oval depression of temporal bone in condyloid process
The largest of the salivary glands which lie just below and in front of the ear
The largest of three openings located in the posterior region of the hard palate
Third tooth from the midline

35. Primary palate
Separates the developing oral cavities from the nasal cavities
Vestibule - vestibule fornix - labial mucosa - buccal mucosa - parotid papilla - Stenson's duct - linea alba - Fordyce's spots - alveolar mucosa - gingiva - labial frenum - buccal frenum
What divides the tongue in half and runs from the base to the tip of the tongue
A line of tissue that extends from the tongue to the floor of the mouth

36. Caruncle
Circle and tighten the gingival margin around the neck of the tooth
Fleshy elevation under the tongue
A bony projection that separates each socket
Found near the cementoenamel junction

37. What is origin and What is insertion?
Origin - fixed point - insertion - movable point
The tip of the chin
The development of different cells
Respiratory system - digestive system and glandular organs

38. Xygote
Maxillary first molar
Bicuspids
When the tissue becomes inflamed
When cells rapidly increase in number

39. Occlusion third
Teeth after cuspids
Enamel is thinner - pulp chamber is smaller -
Linear elevation of the tooth
Occlusal surface of the posterior tooth

40. What teeth do the deciduous (baby) tooth not include?
Assist in depressing the mandible and elevating the tongue
No bicuspids/ no 3rd molars
A line that represents the alveolus bone lining the socket
When the dentin is exposed

41. Oblique Ridge
Elevated area fo enamel that extends obliquely across the occlusal surface of the tooth
Acts as anchors between the alveolar bone and the tooth
Molaris meaning millstone
Moves the head backward and laterally

42. Supplemental Groove
Retracts the tongue and raises the tip of the tongue
Radiates from the developmental groove
Rounded depression on a tooth
Where the proximal sides of two teeth come together and touch

43. Interdental Ligament Group
Resist rotational forces and hold teeth in inter-proximal contact
Forms into the inner lining of the oral cavitiy and enamel of the teeth
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface
Lift the hyoid bone and assist in opening the mouth

44. Cleft Lip
Excess bone in the middle of the palate
Separation of the upper lip ( 1 of 1000 live births)
Quarters of the teeth
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars

45. Attached Gingiva
Platysma - trapezius - sternocleidomastoid
Extends from the mucogingival junction to the gingival groove
The development of different cells
Enamel forming cells

46. Papilla
Small raised projections where taste buds are located
The bone that separates the root on a tooth
Conception thru the first two weeks
A bony projection that separates each socket

47. Labial-Mental Groove
Branches off the inferior alveolar artery before intering the mandibular canal
The groove below the lower lips that separates the lips from the chin
Extends from the mucogingival junction to the gingival groove
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine

48. Palantine Tonsils
Rounded depression on a tooth
Enamel forming cells
Act to maintain the gingival integrity of the marginal gingiva
Located in a depressed area between the pillars

49. What is the function of the buccle nerve branch?
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars
The internal surface at the center of the mandible
A bony projection that separates each socket
Excess bone formations under the tongue on the alvellar bone

50. Foliate Papillae
Inner portion of the enamel rod
The portion of the tooth that meets the gingiva
9 months (5 months ultrasound to tell sex)
Raised vertical folds of tissue on the lateral border of the tongue