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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. Vermilion Zone
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue
Drains the facial structures beginning near the eye and descending toward the mandible
Portion of the lips that are red
Covers muscle tissue in the posterior portion of the palate

2. Lesser Palatine Nerve
Small grooves noted on some teeth
Smaller branch that ennervates the soft palate uvula and tonsils
Lining covers inside of the oral cavity
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue

3. Hard Palate
Forms into dentin - cementum and pulp of the teeth
Bone that surrounds the root of the tooth
A bony plate covered with keratinized tissue located in the anterior portion of the palate
Peg shaped crown with a smooth surface

4. When do oral and nasal cavity separate and palate develop?
Middle two teeth in the mouth
Pointed or rounded mounds on the crown of the tooth
Week 12
Cheek bones--the most breakable bone in the body

5. Lingual Foramen
Of or pertaining to area surrounding naval cavity
The internal surface at the center of the mandible
Opening for the ear
Incremental line indicating trauma of birth

6. Foliate Papillae
Respiratory system - digestive system and glandular organs
Supplies blood to the temporal muscle - masseter muscle - pterygoid muscle and buccanator
Week 11
Raised vertical folds of tissue on the lateral border of the tongue

7. Histology
Greater - lesser - naso palatine nerves
The study of the microscopic structure and functions of tissues
Full deep rich sound in nasal cavity
Draws the hyoid bone superiorly and posteriorly and stabilizes it

8. Dentinal Tubules
Located on the inside of the body of the ramus
Functions the same as the alveolar cfg; originate in alveolar bone
A raised area of tissue laying behind the maxillary central incisors on the hard palate
Tubules that pass through the entire surface of the dentin

9. Gingiva
Used to pulverize food
Conception thru the first two weeks
A dense tissue covered with mucous membrane that can withstand chewing
Two weeks thru 8th week

10. Imbracation Lines
Small curved lines that run parellel to the CEJ
Retracts the tongue and raises the tip of the tongue
9 weeks thru birth
Draws the hyoid bone superiorly and posteriorly and stabilizes it

11. Paranasal
When cells rapidly increase in number
Of or pertaining to area surrounding naval cavity
Mucosa that covers the alveolar bone
Pointed elongations of the pulp

12. Pulp horns
Initiation of the tooth begins
2 small raised folds of tissue where the lingual frenum attaches
Pointed elongations of the pulp
Creates the wall of the dentinal tubule

13. Vestibule
Branches off the inferior alveolar artery before intering the mandibular canal
A rounded area beyond the last posterior maxillary tooth
A pocket formed by the soft tissue of cheeks and gingiva
More common in girls--the failure of the palatal shelves to fuse with the primary palate (1 in 2500 births)

14. Mental Nerve Branch
Mucosa that covers the alveolar bone
Excess bone in the middle of the palate
Appears to be loosely attached - covering the alveolar bone.
Largest division of the trigeminal nerve

15. Mylohyoid Artery
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged
Clear fluid secreted by the salivary and mucous glands throughout the mouth
Branches off the inferior alveolar artery before intering the mandibular canal
Quarters of the teeth

16. Mesial
The internal surface at the center of the mandible
Forms into the inner lining of the oral cavitiy and enamel of the teeth
Surface towards the midline
Extends interiorly from the pterygopalatine nerve and exits thru the incisive foramen

17. Circumpulpal Dentin
Elevated are of enamel that forms the Mesial and distal borders
Second teeth next to central incisors
Separates the developing oral cavities from the nasal cavities
The layer of dentin that surrounds the pulp

18. Common Carotid
Shaping the tongue during speech - mastication and swallowing
Arteries supplying blood to most of the head and the neck
Aid in attaching the gingiva to the alveolar bone
Trigeminal - facial - glossopharyngeal - hypoglossal

19. How many cusps/ roots do the maxillary first molars have?
Small grooves noted on some teeth
Skeletal or soft tissue structures used as reference points in describing locations of anatomical structures or taking measurements
4/5 cusps/ 3 roots
Joined at the midline and are often referred to as the median Palatine suture

20. Palantine Tonsils
Located in a depressed area between the pillars
Tributary of the facial vein which connects the facial vein to the pterygoid plexus of the veins
Cells that form cementum
Duct located on the parotid papilla

21. If Palate not fused
Small linear depression
Band of fibrous tissue which attaches muscle to bone
Teeth will not erupt in proper position
To dissolve

22. Interradicular Septum
Forms the remaining 2/3 of the hard and soft palate uvula
Extreme variations from the norm
The bone that separates the root on a tooth
Looking at the border of the tongue

23. Morpho differentiation
Set of arches found farther in the back of the throat
A period of both primary teeth and permeant teeth are in the dentition
The development of different forms
Portion of the root seen in the oral cavity

24. Concave
A pocket formed by the soft tissue of cheeks and gingiva
Indented
Supplies blood to the temporal muscle - masseter muscle - pterygoid muscle and buccanator
Small dark brushes

25. What is the purpose of saliva?
Genioglossus - hyoglossus - styloglossus - palatoglossus
Raised vertical folds of tissue on the lateral border of the tongue
To lubricate the oral cavity and to moisten food
Extreme variations from the norm

26. Internal Jugular Vein
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein
The development of different cells
Assist in the movement and functioning of the tongue
Palatoglossus - palatopharyngeal

27. Denticion
Dividing point of a multi-rooted tooth
The development of different forms
The connective tissue of the marginal gingiva
Natural teeth in position

28. Gingival Hyperplasia
Quarters of the teeth
An overgrowth of the gingival tissue
Disk that acts like a cushion between the temporal bone and the condyloid process
Excess bone formations under the tongue on the alvellar bone

29. Intertubular Dentin
Dentin found between the tubules
Surface away from the midline
The slightly raised line extending down the middle of the hard palate
Growth from the oral epithelium that gives rise to the tooth buds

30. Tome's process
Responsible for laying down the enamel matrix into place
Slight ridges on the cervical third of certain teeth that extend mesiodistally
Extends from the mucogingival junction to the gingival groove
The corners of the mouth where the top and bottom lip meet

31. Cementoblast
Follows the length of the body of the mandible past the last tooth and up to the ramus
Molaris meaning millstone
Cells that form cementum
The mandibular molars

32. How many cusps/ roots do the 2/3rd mandibular molars have?
Surface towards the midline
Function to resist rotational forces and tilting
Extends interiorly from the pterygopalatine nerve and exits thru the incisive foramen
4 cusps/ bifurcated

33. Muscle origine
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx
Supplies blood to the temporal muscle - masseter muscle - pterygoid muscle and buccanator
Middle two teeth in the mouth
The fixed attachment of a muscle

34. Ligament
The groove below the lower lips that separates the lips from the chin
Band of fibrous tissue which attaches bone to bone
Bi-cuspids
Slight ridges on the cervical third of certain teeth that extend mesiodistally

35. Exfoliated
Tissue fluid surrounding the cell membrane of the odontoblast
Trigeminal - facial - glossopharyngeal - hypoglossal
The largest of three openings located in the posterior region of the hard palate
Shed from the oral cavity

36. Triangular Ridge
Resulting from an imperfect union where the lobes come together
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface
Bone that surrounds the root of the tooth
Folds of tissue that extend horizontally from the uvula to the base of the tongue

37. Dentogingival Fiber Groups
Dividing point of a multi-rooted tooth
Act to maintain the gingival integrity of the marginal gingiva
Fifth cusp located on the mesial surface lingual surface of maxillary first molars
Assist in depressing the mandible and elevating the tongue

38. Median Sulcus
Drains the floor of the mouth
What divides the tongue in half and runs from the base to the tip of the tongue
4 cusps/ bifurcated
Place where the groove comes together or fissures cross

39. Contact Area
Where the proximal sides of two teeth come together and touch
Cells From which connective tissue evolve
Biting edge of the teeth
The inner surface of the cheeks

40. Develop Mental Groove
Study of prenatal growth and the developing process of an individual
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth
Formed by the uniting of lobes during development of crown
Drains the superficial veins of the face and neck into the subclavian vein

41. Greater Palatine Foramen
The largest of three openings located in the posterior region of the hard palate
Aid in attaching the gingiva to the alveolar bone
The mandibular first premolar
Molaris meaning millstone

42. Secondary palate
Constricts the nasopharyngeal passage and elevates the larynx
Forms the remaining 2/3 of the hard and soft palate uvula
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth
A faint line going from the ala of the nose to the corner of the mouth

43. Pterygoid Process
Disk that acts like a cushion between the temporal bone and the condyloid process
A period of both primary teeth and permeant teeth are in the dentition
Causes a thickening of the cementum around the apex
Wings of the sphenoid bone

44. Infraorbital Foramen
The disc becomes displaced
Opening in the mouth below the orbit on the maxillary bone
Origin of the tooth
Small raised projections where taste buds are located

45. Xygote
Conception thru the first two weeks
Layers of tooth tissue become calcified
Inner portion of the enamel rod
Set of arches found farther in the back of the throat

46. Dental Arteries
Week 11
Functions the same as the alveolar cfg; originate in alveolar bone
Week 12
Supplies blood to the roots and periodontal ligaments of the molars and premolars

47. Dental Lamina
Short tubules that seem to crossover to the enamel
Formed by the uniting of lobes during development of crown
Growth from the oral epithelium that gives rise to the tooth buds
Opening in the mouth below the orbit on the maxillary bone

48. Symphysis
Drains the floor of the mouth
A concave area where two bones of the mandible are fused in the center of the mandible on the external surface
Platysma - trapezius - sternocleidomastoid
Allow flexibility during mastication - speech

49. Mandibular Artery
Located behind the ramus of the mandible and branches into five arteries
Retracts the tongue and raises the tip of the tongue
Narrow long enamel tuft
Vertical groove on the midline of the upper lip

50. Sublingual Sulcus
6 years old
Short tubules that seem to crossover to the enamel
A horseshoe shaped groove that follow the curve of the dental arch
Two cortical bone plates that come together between each tooth