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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. How many cusps does the second bicuspid have?
Two
Bluish veins that run the length of the tongue
Small raised projections where taste buds are located
Small curved lines that run parellel to the CEJ

2. Function of Hyoglossus
The area on the crown of the tooth that is nearest the gingival
The development of different cells
Divides the crown and the root
Depresses the tongue

3. Incisive Papilla
Largest papilla - mushroom shaped and are anterior to the sulcus terminalis in a row of 8 to 10
Primary embryonic mesoderm layer that develops during the morpho differentiation period
A raised area of tissue laying behind the maxillary central incisors on the hard palate
4th week

4. Mucogingival Junction
A line of demarcation between the attached gingiva and alveolar mucosa
Convex area on the lingual surface near gingiva
Functions the same as the alveolar cfg; originate in alveolar bone
Two weeks thru 8th week

5. Maxillary Artery
Begin at the caruncles on either side of the frenum and run backward to the base of the tongue
The corners of the mouth where the top and bottom lip meet
Hinge motion and gliding movement
Largest of the branches of the external carotid artery; supplies facial structure

6. Anomalies
Natural teeth in position
Function to resist rotational forces and tilting
Portion of the root seen in the oral cavity
Extreme variations from the norm

7. Dental Sac
Found only in multi-rooted teeth and resists rotational forces
An enclosed area that matures into dentin - cementum and pulp
Divides the crown and the root
Rounded depression on a tooth

8. Sublingual Glands
Demonstrates a disturbance in the body metabolism
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids
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
A horseshoe shaped groove that follow the curve of the dental arch

9. Ligament
20
The first predentin that is formed and matures within the tube
Band of fibrous tissue which attaches bone to bone
Excess bone formations under the tongue on the alvellar bone

10. What are the only permeant teeth that are not succedaneous?
Primitive mouth
Molars
Opening in the mouth below the orbit on the maxillary bone
Respiratory system - digestive system and glandular organs

11. What is Ankyloglossia and who can treat it / What is the treatment called?
A triangular area located behind the last molar
A projection that extends off the back of the soft palate
Portion of the root seen in the oral cavity
A condition where the lower frenum attachment is very short/DDS/frenectomy

12. Posterior Tonsillar Pillar
The inner surface of the cheeks
6 months/3years
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids
Set of arches found farther in the back of the throat

13. Stippled
Vestibule - vestibule fornix - labial mucosa - buccal mucosa - parotid papilla - Stenson's duct - linea alba - Fordyce's spots - alveolar mucosa - gingiva - labial frenum - buccal frenum
Healthy gingival tissue with an orange texture
Cluster of tissue that manufactures and secrets fluid
The layer of dentin that surrounds the pulp

14. Buccal Mucosa
The inner surface of the cheeks
Supplies the gingival - maxillary sinus - cheeks - and maxillary molars with the exception of the mesial buccal root of the first molar
6 months/3years
Secrete saliva to assist in process of digestion

15. What are the extrinsic muscles of the tongue responsible for?
Respiratory system - digestive system and glandular organs
Small grooves noted on some teeth
Assist in the movement and functioning of the tongue
Primary embryonic mesoderm layer that develops during the morpho differentiation period

16. Duct
To dissolve
Canal or passage for fluid
Appears to be loosely attached - covering the alveolar bone.
Extends from the medial corner of the eye to the nasal cavity

17. Pterygoid Process
Wings of the sphenoid bone
Function to resist rotational forces and tilting
Incremental lines around the layers of the enamel matrix
Circle and tighten the gingival margin around the neck of the tooth

18. Mamelons
Three bulges on the incisal edge
Function to resist rotational forces and tilting
12 years
The development of different cells

19. Midline
Formed by the fibroblast cells and secures the tooth in the socket
Lining covers inside of the oral cavity
Middle line of the teeth
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein

20. Tendon
Extends from the medial corner of the eye to the nasal cavity
Supplies blood to the face and oral cavity
Band of fibrous tissue which attaches muscle to bone
A junction or center of veins that directly or indirectly drain a vast area

21. What ligament is retained the longest during periodontal disease?
The fixed attachment of a muscle
Scroll like bones outside the nasal cavaties
A projection that extends off the back of the soft palate
Interdental ligament

22. Function of Trapezius
Three bulges on the incisal edge
Occlusal surface of the posterior tooth
Temporal muscles - masseter muscles - internal pterygoid muscles - external pterygoid muscles
Moves the head backward and laterally

23. Salivary Glands
Full deep rich sound in nasal cavity
Secrete saliva to assist in process of digestion
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
4 cusps/ bifurcated

24. Odontoblast
Small dark brushes
The development of different cells
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth
Cells that form dentin

25. Buccal
Outside surface Which is towards the cheek - on posterior teeth
Palatoglossus - palatopharyngeal
Where the ramus meets the body of the mandible on the outside border
Largest facial bone with two sections joined at the median suture

26. Cusps
Resulting from an imperfect union where the lobes come together
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids
Pointed or rounded mounds on the crown of the tooth
A raised white line that runs parallel to where the teeth meet on the buccal mucosa

27. Lamina Dura
Upper arch of the teeth
Causes a thickening of the cementum around the apex
Growth from the oral epithelium that gives rise to the tooth buds
A line that represents the alveolus bone lining the socket

28. Philtrum
A shallow v-shaped depression located below the bottom of the nose and above the lips
When the dentin is exposed
Healthy gingival tissue with an orange texture
The teeth located at the back of the mouth

29. Odontogenesis
Lower arch of the teeth
Origin of the tooth
Allow flexibility during mastication - speech
The tip of the chin

30. Meniscus
Disk that acts like a cushion between the temporal bone and the condyloid process
The tip of the chin
Acts as anchors between the alveolar bone and the tooth
Radiates from the developmental groove

31. Peg lateral
Folds of tissue to the the lingual veins
Two weeks thru 8th week
Peg shaped crown with a smooth surface
Duct located on the parotid papilla

32. Which molar is the wisdom tooth
Enamel is thinner - pulp chamber is smaller -
Maxillary third molar
A line of demarcation between the attached gingiva and alveolar mucosa
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

33. Groove
Branches off the inferior alveolar artery before intering the mandibular canal
H20 - mucin - organic salts and digestive enzymes
Small linear depression
Molaris meaning millstone

34. Enamel Lamellae
Narrow long enamel tuft
Pulls the hyoid bone and the tongue anteriorly
Linear elevation of the tooth
Curve outward

35. Facial Vein
1500 millimeters
Compact bone plate of the facial and lingual surfaces
Drains the facial structures beginning near the eye and descending toward the mandible
Lower arch of the teeth

36. Primary Dentin
Forms the bulk of the tooth
Curve outward
A line of tissue that extends from the tongue to the floor of the mouth
A bat shaped bone which forms the anterior portion of the skull

37. Oblique Fiber Group
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue
4/5 cusps/ 3 roots
Resists intrusive forces that try to push the tooth inwards
Ala of the nose - naso-labial groove - philtrum - vermilion border - vermilion zone - turbercle of the lip - labial commissures - labio-mental grooves

38. Mesoderm
Canal or passage for fluid
Lift the hyoid bone and assist in opening the mouth
Mucosa that covers the alveolar bone
Forms into dentin - cementum and pulp of the teeth

39. Uvula
Canal or passage for fluid
A projection that extends off the back of the soft palate
Three bulges on the incisal edge
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

40. Function of Digastric
Draws down the mandible and corners of the mouth
Bone that surrounds the root of the tooth
Demonstrates a disturbance in the body metabolism
Lift the hyoid bone and assist in opening the mouth

41. Cleft Lip
Short tubules that seem to crossover to the enamel
Separation of the upper lip ( 1 of 1000 live births)
Two
Indented

42. Foliate Papillae
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids
Exits the mandibular canal at the mental foramen and supplies the chin and lower lip
Union of two triangular ridges that produce a single ridge of elevation that cross the occlusal surface of posterior teeth
Raised vertical folds of tissue on the lateral border of the tongue

43. Genial Tubercles
Small bony projections surrounding the lingual foramen
Small linear depression
Tissue fluid surrounding the cell membrane of the odontoblast
Shaping the tongue during speech - mastication and swallowing

44. Hard Palate
A bony plate covered with keratinized tissue located in the anterior portion of the palate
Linear elevation of the tooth
Compact bone plate of the facial and lingual surfaces
Secrete saliva to assist in process of digestion

45. Lesser Palatine Nerve
A duct that empties into the mouth thru the parotid papilla - Parotid gland goes with Stensen's duct
The line of demarcation between the attached gingiva and the marginal gingiva
9 weeks thru birth
Smaller branch that ennervates the soft palate uvula and tonsils

46. Palantine Tonsils
Wearing away of the incisal or occlusal surfaces of the tooth
When the tissue becomes inflamed
Located on the inside of the body of the ramus
Located in a depressed area between the pillars

47. Resonance
Full deep rich sound in nasal cavity
Duct located on the parotid papilla
Where the ectoderm layer matures into the enamel
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein

48. Parotid Papilla
A flap of tissue on the on the buccal mucosa
Where the ramus meets the body of the mandible on the outside border
Inside of the maxillary 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

49. What is origin and What is insertion?
Surface away from the midline
20
Where the ectoderm layer matures into the enamel
Origin - fixed point - insertion - movable point

50. Interradicular Septum
The mandibular first premolar
Triangular space in the gingival direction when two adjacent teeth are in contact
The bone that separates the root on a tooth
No bicuspids/ no 3rd molars