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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. Mucogingival Junction
The space between the unattached gingiva and the tooth
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars
20
A line of demarcation between the attached gingiva and alveolar mucosa

2. Cuspid
Maxillary third molar
Allow flexibility during mastication - speech
The connective tissue of the marginal gingiva
Third tooth from the midline

3. Lamina Dura
Biting edge of the teeth
Platysma - trapezius - sternocleidomastoid
The disc becomes displaced
A line that represents the alveolus bone lining the socket

4. Osteoclasts
Small linear depression
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged
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
(free gingiva) surrounds the teeth

5. Fimbriated Folds
Wearing away of the incisal or occlusal surfaces of the tooth
The groove below the lower lips that separates the lips from the chin
Folds of tissue to the the lingual veins
Layers of tooth tissue become calcified

6. Posterior Tonsillar Pillar
Rounded depression on a tooth
Synovial fluid
Aid in attaching the gingiva to the alveolar bone
Set of arches found farther in the back of the throat

7. Maxilla
Corners of the mouth
Incremental lines around the layers of the enamel matrix
The moveable attachment of the muscle
Largest facial bone with two sections joined at the median suture

8. Gums
Tissue covering the alveolar processes
Bifurcated/ 5 cusps
Supplies blood to the face and oral cavity
4 cusps/ bifurcated

9. Sharpey's Fibers
6 months/3years
Rounded depression on a tooth
To dissolve
Acts as anchors between the alveolar bone and the tooth

10. Enamel Lamellae
Set of arches found farther in the back of the throat
Narrow long enamel tuft
A raised white line that runs parallel to where the teeth meet on the buccal mucosa
Largest division of the trigeminal nerve

11. What is the largest cranial nerve and the most important to dental auxillaries and why?
Trigeminal nerve--because it ennervates the maxilla and the mandible
Developmental segment of a tooth
Dividing point of a multi-rooted tooth
The largest of the salivary glands which lie just below and in front of the ear

12. Fetus
Three bulges on the incisal edge
Portion of the root seen in the oral cavity
The largest of the salivary glands which lie just below and in front of the ear
9 weeks thru birth

13. TMJ bones are bathed In what solution?
Synovial fluid
A line that represents the alveolus bone lining the socket
Small raised projections where taste buds are located
Demonstrates a disturbance in the body metabolism

14. Lingual
Drains the facial structures beginning near the eye and descending toward the mandible
Pointed elongations of the pulp
Inside surface Which is towards the tongue - on anterior teeth
The layer of dentin that surrounds the pulp

15. Odontoblast
Portion of the lips that are red
Cells that form dentin
Cut - tear - and grind food
Place where the groove comes together or fissures cross

16. Convects
Pulls the hyoid bone and the tongue anteriorly
Branches off the inferior alveolar artery before intering the mandibular canal
4/5 cusps/ 3 roots
Curve outward

17. Cusp of Caribelli
Fifth cusp located on the mesial surface lingual surface of maxillary first molars
Respiratory system - digestive system and glandular organs
Study of the structure and form of the teeth
Located behind the ramus of the mandible and branches into five arteries

18. Greater Palatine Nerve
The fixed attachment of a muscle
Act to maintain the gingival integrity of the marginal gingiva
Temporal muscles - masseter muscles - internal pterygoid muscles - external pterygoid muscles
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth

19. Paranasal
Outside surface Which is towards the cheek - on posterior teeth
Of or pertaining to area surrounding naval cavity
Small yellowish glands on the labial mucosa
Distends the ramus - enters the mandibular foramen and bifurcates around the first premolar tooth to form the incisive and the mental arteries

20. Anatomical root
A duct that empties into the mouth thru the parotid papilla - Parotid gland goes with Stensen's duct
Responsible for laying down the enamel matrix into place
The groove below the lower lips that separates the lips from the chin
Portion covered with cementum

21. Oblique Ridge
Folds of tissue that extend horizontally from the uvula to the base of the tongue
Surface towards the midline
Elevated area fo enamel that extends obliquely across the occlusal surface of the tooth
The tip of the chin

22. Mental Nerve Branch
Moves the head backward and laterally
Largest division of the trigeminal nerve
4th week
Creates the wall of the dentinal tubule

23. Frenum
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip
An extension of an unattached gingiva and the tooth
Excess bone in the middle of the palate
Raised vertical folds of tissue on the lateral border of the tongue

24. Occlusion third
Extends from the medial corner of the eye to the nasal cavity
10 days
Occlusal surface of the posterior tooth
Trigeminal - facial - glossopharyngeal - hypoglossal

25. Function of Sternocleidomastoid
Assists in elevating the chin
Three bulges on the incisal edge
The moveable attachment of the muscle
The inner surface of the cheeks

26. Retro Mandibular Vein
Calcium salts are deposited into formed tooth
Drains the maxiallary artery and superficial temporal arteries
Found near the cementoenamel junction
Study of the structure and form of the teeth

27. Uvula
Looking at the border of the tongue
A projection that extends off the back of the soft palate
Temporal muscles - masseter muscles - internal pterygoid muscles - external pterygoid muscles
Wings of the sphenoid bone

28. If a patient receives toxic agents - how long does it take for their sense of taste to return?
A raised white line that runs parallel to where the teeth meet on the buccal mucosa
The largest of three openings located in the posterior region of the hard palate
10 days
Distends the ramus - enters the mandibular foramen and bifurcates around the first premolar tooth to form the incisive and the mental arteries

29. Marginal GIngiva
Wearing away of the incisal or occlusal surfaces of the tooth
(free gingiva) surrounds the teeth
Follows the inside of the ramus and the body of the mandible
Two vertical extensions of the mandible

30. Labial Mucosa
Clear fluid secreted by the salivary and mucous glands throughout the mouth
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
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
The inner surface of the lips

31. Convex
Circle and tighten the gingival margin around the neck of the tooth
Pulls the hyoid bone and the tongue anteriorly
32
To bulge of curve outward

32. Contact Area
Where the proximal sides of two teeth come together and touch
Canal or passage for fluid
A rounded area beyond the last posterior maxillary tooth
A flap of tissue on the on the buccal mucosa

33. Articular Disc
Supplies blood to the temporal muscle - masseter muscle - pterygoid muscle and buccanator
Used to pulverize food
The portion of the tooth that meets the gingiva
Also known as meniscus it is a dense fibrous connective tissue that is thicker at the ends and attached to the condyle

34. Retromolar Area
Initiation of the tooth begins
Found near the cementoenamel junction
Of or pertaining to area surrounding naval cavity
A triangular area located behind the last molar

35. Caruncle
Folds of tissue to the the lingual veins
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine
Fleshy elevation under the tongue
The cornerstone of the mouth

36. Mandibular Foramen
The internal surface at the center of the mandible
A flap of tissue on the on the buccal mucosa
Located on the inside of the body of the ramus
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue

37. Xygomatic bones
Cheek bones--the most breakable bone in the body
The connective tissue of the marginal gingiva
Tissue covering the alveolar processes
Calcium salts are deposited into formed tooth

38. Lamina Propria
Small yellowish glands on the labial mucosa
Bicuspids
The connective tissue of the marginal gingiva
Inside of the maxillary teeth

39. Parotid Papilla
A flap of tissue on the on the buccal mucosa
Canal or passage for fluid
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
Excess bone in the middle of the palate

40. Function of Styloglossus
Raised vertical folds of tissue on the lateral border of the tongue
Retracts the tongue and raises the tip of the tongue
Forms a large cavity above the roots of the maxillary molars
Triangular space in the gingival direction when two adjacent teeth are in contact

41. Circumpulpal Dentin
Depresses the tongue
The layer of dentin that surrounds the pulp
When cells rapidly increase in number
Portion of the lips that are red

42. Peg lateral
Responsible for laying down the enamel matrix into place
Peg shaped crown with a smooth surface
Compact bone plate of the facial and lingual surfaces
A junction or center of veins that directly or indirectly drain a vast area

43. Xerostomia
1500 millimeters
Week 12
Excess dryness of the mouth
Lining covers inside of the oral cavity

44. Nasal-Labial Groove
Tooth emerges from gum tissue and becomes visible
A faint line going from the ala of the nose to the corner of the mouth
Looking at the border of the tongue
Study of the structure and form of the teeth

45. Proliferation
Elevated area fo enamel that extends obliquely across the occlusal surface of the tooth
A duct that empties into the mouth thru the parotid papilla - Parotid gland goes with Stensen's duct
Where the ectoderm layer matures into the enamel
Supplies blood to the roots and periodontal ligaments of the molars and premolars

46. What are the 4 pairs of muscles of mastication!
Also known as meniscus it is a dense fibrous connective tissue that is thicker at the ends and attached to the condyle
Temporal muscles - masseter muscles - internal pterygoid muscles - external pterygoid muscles
Where the ramus meets the body of the mandible on the outside border
4 cusps/ bifurcated

47. Intertubular Dentin
Composed of mucosa and surrounds the necks of the teeth
Linear elevation of the tooth
Dentin found between the tubules
Separates the developing oral cavities from the nasal cavities

48. Landmarks
Vertical groove on the midline of the upper lip
Skeletal or soft tissue structures used as reference points in describing locations of anatomical structures or taking measurements
Quarters of the teeth
2 to 3 pints

49. Endoderm
Drains the maxiallary artery and superficial temporal arteries
Respiratory system - digestive system and glandular organs
Study of the structure and form of the teeth
Vestibule - vestibule fornix - labial mucosa - buccal mucosa - parotid papilla - Stenson's duct - linea alba - Fordyce's spots - alveolar mucosa - gingiva - labial frenum - buccal frenum

50. Function of Digastric
Natural teeth in position
Found only in multi-rooted teeth and resists rotational forces
Platysma - trapezius - sternocleidomastoid
Lift the hyoid bone and assist in opening the mouth