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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. Labial Commissures
Opening for the ear
Supportive fibers that anchor the tooth to the bone
Sharp projection on the under surface of the temporal bone
The corners of the mouth where the top and bottom lip meet

2. Cusps
The development of different forms
Substances between cells
A triangular area located behind the last molar
Pointed or rounded mounds on the crown of the tooth

3. Function of mylohyoid
Biting edge of the teeth
Demonstrates a disturbance in the body metabolism
Assist in depressing the mandible and elevating the tongue
Act to maintain the gingival integrity of the marginal gingiva

4. Mucosa
Lining covers inside of the oral cavity
Cut - tear - and grind food
Small curved lines that run parellel to the CEJ
Forms a large cavity above the roots of the maxillary molars

5. What are the only permeant teeth that are not succedaneous?
The teeth located at the back of the mouth
Resulting from an imperfect union where the lobes come together
Buccal - lingual - and inferior alveolar
Molars

6. Imbrication lines
Causes a thickening of the cementum around the apex
Genioglossus - hyoglossus - styloglossus - palatoglossus
Portion covered with cementum
Slight ridges on the cervical third of certain teeth that extend mesiodistally

7. Retro Mandibular Vein
Ligaments and muscles of mastication
Drains the maxiallary artery and superficial temporal arteries
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
Lower arch of the teeth

8. What is the function of the buccle nerve branch?
Demonstrates a disturbance in the body metabolism
Supportive fibers that anchor the tooth to the bone
Separation of the upper lip ( 1 of 1000 live births)
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars

9. Cleft Lip
Mandibular central incisors
Separation of the upper lip ( 1 of 1000 live births)
Dividing point of a multi-rooted tooth
Branches off the inferior alveolar artery before intering the mandibular canal

10. Circumvallate Papillae
Resulting from an imperfect union where the lobes come together
When cells rapidly increase in number
9 months (5 months ultrasound to tell sex)
Largest papilla - mushroom shaped and are anterior to the sulcus terminalis in a row of 8 to 10

11. Pterygoid Process
Wings of the sphenoid bone
Smaller branch that ennervates the soft palate uvula and tonsils
The layer of dentin that surrounds the pulp
Genioglossus - hyoglossus - styloglossus - palatoglossus

12. Dental Sac
An enclosed area that matures into dentin - cementum and pulp
Primary and permanent
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip
A concave area where two bones of the mandible are fused in the center of the mandible on the external surface

13. Apical Fiber Group
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars
Canal or passage for fluid
Of or pertaining to area surrounding naval cavity
Resists forces that try to pull the tooth outward

14. Evanesce
More common in girls--the failure of the palatal shelves to fuse with the primary palate (1 in 2500 births)
To dissolve
What divides the tongue in half and runs from the base to the tip of the tongue
Bluish veins that run the length of the tongue

15. Palantine Tonsils
Located in a depressed area between the pillars
Clear fluid secreted by the salivary and mucous glands throughout the mouth
Largest division of the trigeminal nerve
Short tubules that seem to crossover to the enamel

16. Sulingual Folds
Begin at the caruncles on either side of the frenum and run backward to the base of the tongue
A concave area where two bones of the mandible are fused in the center of the mandible on the external surface
Portion covered with cementum
Growth from the oral epithelium that gives rise to the tooth buds

17. Philtrum
Vertical groove on the midline of the upper lip
Fleshy elevation under the tongue
Constricts the nasopharyngeal passage and elevates the larynx
Pulls the hyoid bone and the tongue anteriorly

18. Labial Mucosa
The inner surface of the lips
The area on the crown of the tooth that is nearest the gingival
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged
Extends from the mucogingival junction to the gingival groove

19. Maxillary vein
Drains the Pterygoid plexus of the veins
Healthy gingival tissue with an orange texture
The outer edge of the nostril
Bi-cuspids

20. Caruncle
Covering over the enamel that is left over from the epithelium ameloblasts
Bi-cuspids
A line of tissue that extends from the tongue to the floor of the mouth
Fleshy elevation under the tongue

21. Which molar contains the cusp of Caribelli?
Located in a depressed area between the pillars
Growth from the oral epithelium that gives rise to the tooth buds
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids
Maxillary first molar

22. Taste Buds
The study of the microscopic structure and functions of tissues
Oval structures that are located on the dorsal surface of the tongue
Extends interiorly from the pterygopalatine nerve and exits thru the incisive foramen
The first predentin that is formed and matures within the tube

23. Cervical line
Peg shaped crown with a smooth surface
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
Genioglossus - hyoglossus - styloglossus - palatoglossus
Divides the crown and the root

24. Cementoblast
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
Branches off the inferior alveolar artery before intering the mandibular canal
Cells that form cementum
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue

25. Lingual Nerve Branch
Two smaller openings located behind the greater Palatine Foramen in the posterior region of the hard palate
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
Smaller - enamel thicker - pulp chamber is larger is larger - bifurcation wider
A period of both primary teeth and permeant teeth are in the dentition

26. Stensens' Duct (aka Parotid)

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27. Odontoblast
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle
Corners of the mouth
Cells that form dentin
Biting edge of the teeth

28. Morpho differentiation
The development of different forms
Papillae that give the tongue the strawberry effect
Secrete saliva to assist in process of digestion
A dense tissue covered with mucous membrane that can withstand chewing

29. Sublingual Caruncles
Fifth cusp located on the mesial surface lingual surface of maxillary first molars
Shed from the oral cavity
2 small raised folds of tissue where the lingual frenum attaches
Week 11

30. Anterior Tonsillar Pillar
2 small raised folds of tissue where the lingual frenum attaches
Bony projection found on the bottom border of the temporal bone
Mildest form of cleft palate
Folds of tissue that extend horizontally from the uvula to the base of the tongue

31. Internal Oblique Ridge
Aid in attaching the gingiva to the alveolar bone
Oval structures that are located on the dorsal surface of the tongue
Follows the inside of the ramus and the body of the mandible
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

32. Embryo
Resist rotational forces and hold teeth in inter-proximal contact
The internal surface at the center of the mandible
Two weeks thru 8th week
4 cusps/ bifurcated

33. Function of Geneoglossus?
Initiation of the tooth begins
Buccal - lingual - and inferior alveolar
Retracts or depresses the tongue
Excess bone formations under the tongue on the alvellar bone

34. Attrition
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue
Wearing away of the incisal or occlusal surfaces of the tooth
Vestibule - vestibule fornix - labial mucosa - buccal mucosa - parotid papilla - Stenson's duct - linea alba - Fordyce's spots - alveolar mucosa - gingiva - labial frenum - buccal frenum
Also known as meniscus it is a dense fibrous connective tissue that is thicker at the ends and attached to the condyle

35. Soft Palate
Covers muscle tissue in the posterior portion of the palate
Follows the inside of the ramus and the body of the mandible
Assists in elevating the chin
Triferacated

36. Convex
Duct located on the parotid papilla
Divides the crown and the root
Union of two triangular ridges that produce a single ridge of elevation that cross the occlusal surface of posterior teeth
To bulge of curve outward

37. Interdental Gingiva
An extension of an unattached gingiva and the tooth
The tip of the chin
Maxillary first molar
Synovial fluid

38. Fungiform Papillae
Molaris meaning millstone
Papillae that give the tongue the strawberry effect
Pulverizing or chewing surface
Portion of the lips where the skin meets the vermilion zone

39. Mental Nerve Branch
Depresses the tongue
Bicuspids
An enclosed area that matures into dentin - cementum and pulp
Largest division of the trigeminal nerve

40. When does the maxillary first molar erupt?
Circle and tighten the gingival margin around the neck of the tooth
Hinge motion and gliding movement
6 years old
Portion of the lips that are red

41. Incisal third
The mandibular molars
Elevated are of enamel that forms the Mesial and distal borders
The crown of the tooth that is nearest the incisal edge near the anterior tooth
Second teeth next to central incisors

42. Lobes
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars
Teeth after cuspids
Developmental segment of a tooth
Assists in elevating the chin

43. How many roots/ cusps does the mandibular first molar have?
Bifurcated/ 5 cusps
Distends the ramus - enters the mandibular foramen and bifurcates around the first premolar tooth to form the incisive and the mental arteries
Supplies blood to the temporal muscle - masseter muscle - pterygoid muscle and buccanator
Primary embryonic mesoderm layer that develops during the morpho differentiation period

44. What is the maxillary cuspid known as?
The cornerstone of the mouth
Upper arch of the teeth
Forms after the completion of the apical foramen
Largest facial bone with two sections joined at the median suture

45. Saliva
Clear fluid secreted by the salivary and mucous glands throughout the mouth
The ridges that run horizontally across the hard palate behind the incisive papilla
Drains the facial structures beginning near the eye and descending toward the mandible
A shallow v-shaped depression located below the bottom of the nose and above the lips

46. What are the characteristics of permanent teeth?
Small linear depression
Short tubules that seem to crossover to the enamel
Demonstrates a disturbance in the body metabolism
Enamel is thinner - pulp chamber is smaller -

47. Stippled
9 months (5 months ultrasound to tell sex)
Healthy gingival tissue with an orange texture
Genioglossus - hyoglossus - styloglossus - palatoglossus
Tissue covering the alveolar processes

48. Cervical Third
Short tubules that seem to crossover to the enamel
The area on the crown of the tooth that is nearest the gingival
Curve outward
Composed of mucosa and surrounds the necks of the teeth

49. Pulp Stones
Calcified masses of dentin
Two cortical bone plates that come together between each tooth
Narrow long enamel tuft
Extends from the mucogingival junction to the gingival groove

50. Fetal Alcohol Syndrome symptons
Largest facial bone with two sections joined at the median suture
The disc becomes displaced
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine
Small head - low nasal bridge - thin upper lip - small mandible