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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. Rod Core
To dissolve
Radiates from the developmental groove
Inner portion of the enamel rod
Wings of the sphenoid bone

2. What is origin and What is insertion?
Origin - fixed point - insertion - movable point
Of or pertaining to area surrounding naval cavity
Orbicularis oris - buccinator - mentalis - zygomatic major
Triferacated

3. Ridge
Resists intrusive forces that try to push the tooth inwards
Linear elevation of the tooth
The development of different cells
The ridges that run horizontally across the hard palate behind the incisive papilla

4. Parotid Papilla
Cells that form cementum
Supplies blood to the temporal muscle - masseter muscle - pterygoid muscle and buccanator
Fifth cusp located on the mesial surface lingual surface of maxillary first molars
A flap of tissue on the on the buccal mucosa

5. Morpho differentiation
Band of fibrous tissue which attaches muscle to bone
The development of different forms
Depresses the tongue
Begin at the caruncles on either side of the frenum and run backward to the base of the tongue

6. Buccal Mucosa
The inner surface of the cheeks
Located on the inside of the body of the ramus
The mandibular first premolar
Lift the hyoid bone and assist in opening the mouth

7. Dentinal Fluid
Developmental segment of a tooth
Extreme variations from the norm
Tissue fluid surrounding the cell membrane of the odontoblast
Bone that surrounds the root of the tooth

8. Function of mylohyoid
No bicuspids/ no 3rd molars
Assist in depressing the mandible and elevating the tongue
Oval structures that are located on the dorsal surface of the tongue
The tip of the chin

9. Duct
The inner surface of the cheeks
Origin - fixed point - insertion - movable point
Platysma - trapezius - sternocleidomastoid
Canal or passage for fluid

10. Internal Jugular Vein
A period of both primary teeth and permeant teeth are in the dentition
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein
H20 - mucin - organic salts and digestive enzymes
The internal surface at the center of the mandible

11. What is the purpose of permanent teeth?
Cut - tear - and grind food
Set of arches found farther in the back of the throat
Linear elevation of the tooth
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

12. Vermilion Zone
Teeth after cuspids
Portion of the lips that are red
To bulge of curve outward
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars

13. Palantine Tonsils
Located in a depressed area between the pillars
Substances between cells
Secrete saliva to assist in process of digestion
Hinge motion and gliding movement

14. Function of Geneoglossus?
Conception thru the first two weeks
Retracts or depresses the tongue
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine
Upper arch of the teeth

15. Alveolar Mucosa
1500 millimeters
Mucosa that covers the alveolar bone
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged
Small linear depression

16. Muscle Insertion
The moveable attachment of the muscle
To lubricate the oral cavity and to moisten food
The slightly raised line extending down the middle of the hard palate
Buccal - lingual - and inferior alveolar

17. How many cusps/ roots do the 2/3rd maxillary molars have?
Lift the hyoid bone and assist in opening the mouth
Largest division of the trigeminal nerve
Three cusps/ trifurcated
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip

18. Mucosa
Lining covers inside of the oral cavity
Three bulges on the incisal edge
Rounded depression on a tooth
Allow flexibility during mastication - speech

19. Pit
When the dentin is exposed
Place where the groove comes together or fissures cross
A projection that extends off the back of the soft palate
Excess dryness of the mouth

20. Function of Trapezius
The bone that separates the root on a tooth
Moves the head backward and laterally
Bony projection found on the bottom border of the temporal bone
A horseshoe shaped groove that follow the curve of the dental arch

21. Dentinal Tubules
The crown of the tooth that is nearest the incisal edge near the anterior tooth
Tubules that pass through the entire surface of the dentin
Enamel is thinner - pulp chamber is smaller -
Origin of the tooth

22. Styloid Process
Stained growth rings in dentin
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface
Sharp projection on the under surface of the temporal bone
Trigeminal - facial - glossopharyngeal - hypoglossal

23. Internal Oblique Ridge
Opening in the mouth below the orbit on the maxillary bone
Mucosa that covers the alveolar bone
Small dark brushes
Follows the inside of the ramus and the body of the mandible

24. Greater Palatine Foramen
Supplies blood to the brain and the eyes
Bi-cuspids
Mastication - aids in speech - influence facial structure - chewing surfaces
The largest of three openings located in the posterior region of the hard palate

25. Cleft Lip
Separation of the upper lip ( 1 of 1000 live births)
Vestibule - vestibule fornix - labial mucosa - buccal mucosa - parotid papilla - Stenson's duct - linea alba - Fordyce's spots - alveolar mucosa - gingiva - labial frenum - buccal frenum
Excess dryness of the mouth
Study of prenatal growth and the developing process of an individual

26. Enamel Tufts
The largest of three openings located in the posterior region of the hard palate
Molars
Small dark brushes
Stained growth rings in dentin

27. Enamel Dysplasia
A rounded area beyond the last posterior maxillary tooth
2 to 3 pints
When the surface of the teeth becomes grooved
Aid in attaching the gingiva to the alveolar bone

28. Stomedeum
Study of prenatal growth and the developing process of an individual
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface
Opening for the ear
Primitive mouth

29. Linea Alba
Conception thru the first two weeks
A raised white line that runs parallel to where the teeth meet on the buccal mucosa
Calcium salts are deposited into formed tooth
Bifurcated/ 5 cusps

30. External Oblique Ridge
4th week
A raised white line that runs parallel to where the teeth meet on the buccal mucosa
Follows the length of the body of the mandible past the last tooth and up to the ramus
Incremental line indicating trauma of birth

31. Tendon
Incremental line indicating trauma of birth
The development of different cells
Band of fibrous tissue which attaches muscle to bone
Drains the floor of the mouth

32. Mental Nerve Branch
Largest division of the trigeminal nerve
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged
Of or pertaining to area surrounding naval cavity
Bifurcated/ 5 cusps

33. Evanesce
Chewing and swallowing food
Corners of the mouth
Formed by the fibroblast cells and secures the tooth in the socket
To dissolve

34. Contact Area
Oval structures that are located on the dorsal surface of the tongue
Middle two teeth in the mouth
Where the proximal sides of two teeth come together and touch
Band of fibrous tissue which attaches muscle to bone

35. lst and second premolars
Mucosa that covers the alveolar bone
Teeth after cuspids
Retracts or depresses the tongue
Pointed elongations of the pulp

36. Occlusal
Located behind the ramus of the mandible and branches into five arteries
Maxillary third molar
Act to maintain the gingival integrity of the marginal gingiva
Pulverizing or chewing surface

37. Rami
Two vertical extensions of the mandible
Tubules that pass through the entire surface of the dentin
Growth from the oral epithelium that gives rise to the tooth buds
Forms after the completion of the apical foramen

38. Nasmyths Membrane
Covering over the enamel that is left over from the epithelium ameloblasts
Interdental ligament
The bone that separates the root on a tooth
Middle two teeth in the mouth

39. What are the only permeant teeth that are not succedaneous?
A condition where the lower frenum attachment is very short/DDS/frenectomy
Secrete saliva to assist in process of digestion
Drains the Pterygoid plexus of the veins
Molars

40. What are the two ways the TMJs move?
10 days
Hinge motion and gliding movement
Drains the floor of the mouth
Calcified masses of dentin

41. Anterior Alveolar Nerve
Small linear depression
Cells develop into different tissues
Intervates the anterior maxillary sinus - gingiva - cuspids - laterals - and central incisors
Buccal - lingual - and inferior alveolar

42. What is the maxillary cuspid known as?
The cornerstone of the mouth
Calcified masses of dentin
The largest of three openings located in the posterior region of the hard palate
The bone that separates the root on a tooth

43. What are the eight landmarks of the face?
Formed by the uniting of lobes during development of crown
A pocket formed by the soft tissue of cheeks and gingiva
Ala of the nose - naso-labial groove - philtrum - vermilion border - vermilion zone - turbercle of the lip - labial commissures - labio-mental grooves
Fleshy elevation under the tongue

44. Philtrum
Cells that form dentin
Chewing and swallowing food
The space between the unattached gingiva and the tooth
Vertical groove on the midline of the upper lip

45. Inferior Alveolar Artery
Distends the ramus - enters the mandibular foramen and bifurcates around the first premolar tooth to form the incisive and the mental arteries
An enclosed area that matures into dentin - cementum and pulp
Opening for the ear
Buccal - lingual - and inferior alveolar

46. Triangular Ridge
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface
Where the proximal sides of two teeth come together and touch
Assist in the movement and functioning of the tongue
Forms into dentin - cementum and pulp of the teeth

47. Quadrants
Genioglossus - hyoglossus - styloglossus - palatoglossus
Quarters of the teeth
Small curved lines that run parellel to the CEJ
Supplies blood to the roots and periodontal ligaments of the molars and premolars

48. Cortical Bone
Opening in the mouth below the orbit on the maxillary bone
Compact bone plate of the facial and lingual surfaces
A period of both primary teeth and permeant teeth are in the dentition
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle

49. Sharpey's Fibers
Enamel forming cells
Mucosa that covers the alveolar bone
Acts as anchors between the alveolar bone and the tooth
A horseshoe shaped groove that follow the curve of the dental arch

50. Interdental Gingiva
An extension of an unattached gingiva and the tooth
A faint line going from the ala of the nose to the corner of the mouth
The portion of the tooth that meets the gingiva
4 cusps/ bifurcated