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Dental Assisting: Head And Neck Anatomy

Subjects : health-sciences, dentistry

Instructions:

Answer 50 questions in 15 minutes.
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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. Histo Differentation
The development of different tissues
Supplies blood to the roots and periodontal ligaments of the molars and premolars
Synovial fluid
Bicuspids

2. Fetal Alcohol Syndrome symptons
Triangular space in the gingival direction when two adjacent teeth are in contact
A dense tissue covered with mucous membrane that can withstand chewing
Small head - low nasal bridge - thin upper lip - small mandible
Buccal - lingual - and inferior alveolar

3. Mandible Arch
Occlusal surface of the posterior tooth
The line of demarcation between the attached gingiva and the marginal gingiva
Natural teeth in position
Lower arch of the teeth

4. Contact Area
Where the proximal sides of two teeth come together and touch
Drains the floor of the mouth
Cells From which connective tissue evolve
Innervates the orbicular oculi - the area around the eye - and the area around and behind the zygomatic arch

5. Peg lateral
Peg shaped crown with a smooth surface
What divides the tongue in half and runs from the base to the tip of the tongue
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface 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

6. How is the TMJ supported and what controls their movement?
Ligaments and muscles of mastication
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
When cells rapidly increase in number
Stained growth rings in dentin

7. Calcification
Layers of tooth tissue become calcified
Enamel forming cells
Disk that acts like a cushion between the temporal bone and the condyloid process
Vertical groove on the midline of the upper lip

8. Stomedeum
Shed from the oral cavity
Extreme variations from the norm
Primitive mouth
Formed by the fibroblast cells and secures the tooth in the socket

9. Mesoderm
Aid in attaching the gingiva to the alveolar bone
Third tooth from the midline
4th week
Forms into dentin - cementum and pulp of the teeth

10. Facial Artery
The largest of the salivary glands which lie just below and in front of the ear
The inner surface of the cheeks
Largest of the branches of the external carotid artery; supplies facial structure
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

11. Facial Vein
The internal surface at the center of the mandible
Extends from the mucogingival junction to the gingival groove
Lift the hyoid bone and assist in opening the mouth
Drains the facial structures beginning near the eye and descending toward the mandible

12. Periodontal Ligaments
A rounded area beyond the last posterior maxillary tooth
Largest division of the trigeminal nerve
Formed by the fibroblast cells and secures the tooth in the socket
Digstric - Mylohyoid - stylohyoid - geniohyoid

13. Tubercle of the Lip
Cells that form cementum
Maxillary first molar
A small projection in the middle of the upper lip
When the tissue becomes inflamed

14. Inferior Nasal Conchae
Cells that form cementum
Exits the mandibular canal at the mental foramen and supplies the chin and lower lip
Scroll like bones outside the nasal cavaties
Skeletal or soft tissue structures used as reference points in describing locations of anatomical structures or taking measurements

15. Sulingual Folds
Formed by the fibroblast cells and secures the tooth in the socket
Maxillary third molar
Compact bone plate of the facial and lingual surfaces
Begin at the caruncles on either side of the frenum and run backward to the base of the tongue

16. Anatomical root
Small linear depression
Excess bone formations under the tongue on the alvellar bone
Chewing and swallowing food
Portion covered with cementum

17. Convects
The connective tissue of the marginal gingiva
The inner surface of the lips
Excess bone in the middle of the palate
Curve outward

18. What is the smallest tooth in dentition?
Elevates the posterior portion of the tongue and narrows the fauces
Maxillary first molar
Origin of the tooth
Mandibular central incisors

19. Taste Buds
9 months (5 months ultrasound to tell sex)
Oval structures that are located on the dorsal surface of the tongue
Largest of the branches of the external carotid artery; supplies facial structure
Occurs in unusual ways and distorted crowns may appear

20. Mixed Dentition
The slightly raised line extending down the middle of the hard palate
Arteries supplying blood to most of the head and the neck
Supplies blood to the roots and periodontal ligaments of the interior teeth
A period of both primary teeth and permeant teeth are in the dentition

21. How many cusps/ roots do the 2/3rd maxillary molars have?
Three cusps/ trifurcated
Cells that form dentin
Anterior to the ethmoid bone and part of the orbit (corners of the eye)
Scroll like bones outside the nasal cavaties

22. Incisal third
Mandibular central incisors
Shed from the oral cavity
The crown of the tooth that is nearest the incisal edge near the anterior tooth
To lubricate the oral cavity and to moisten food

23. Internal Oblique Ridge
Follows the inside of the ramus and the body of the mandible
Small dark brushes
Trigeminal - facial - glossopharyngeal - hypoglossal
Molaris meaning millstone

24. Furcation
9 months (5 months ultrasound to tell sex)
Bi-cuspids
Dividing point of a multi-rooted tooth
To dissolve

25. Intercellular Substances
The corners of the mouth where the top and bottom lip meet
An extension of an unattached gingiva and the tooth
Substances between cells
Skeletal or soft tissue structures used as reference points in describing locations of anatomical structures or taking measurements

26. Odontoblast
Shed from the oral cavity
Cells that form dentin
Orbicularis oris - buccinator - mentalis - zygomatic major
Two weeks thru 8th week

27. Hard Palate
Drains the maxiallary artery and superficial temporal arteries
What divides the tongue in half and runs from the base to the tip of the tongue
Duct located on the parotid papilla
A bony plate covered with keratinized tissue located in the anterior portion of the palate

28. Lingual Foramen
6 months/3years
The internal surface at the center of the mandible
Excess bone formations under the tongue on the alvellar bone
Joined at the midline and are often referred to as the median Palatine suture

29. Dental Arteries
Secrete saliva to assist in process of digestion
Supplies blood to the temporal muscle - masseter muscle - pterygoid muscle and buccanator
Supplies blood to the roots and periodontal ligaments of the molars and premolars
Three bulges on the incisal edge

30. Infraorbital Foramen
Cells that form dentin
To dissolve
The space between the unattached gingiva and the tooth
Opening in the mouth below the orbit on the maxillary bone

31. Interdental Gingiva
Branches off the inferior alveolar artery before intering the mandibular canal
An extension of an unattached gingiva and the tooth
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
12 years

32. Labial Commissures
The corners of the mouth where the top and bottom lip meet
Tissue covering the alveolar processes
Scroll like bones outside the nasal cavaties
Largest facial bone with two sections joined at the median suture

33. Neonatal line
Follows the length of the body of the mandible past the last tooth and up to the ramus
Wings of the sphenoid bone
Occurs in unusual ways and distorted crowns may appear
Incremental line indicating trauma of birth

34. Philtrum
Outside surface Which is towards the lips
Week 11
A shallow v-shaped depression located below the bottom of the nose and above the lips
The crown of the tooth that is nearest the incisal edge near the anterior tooth

35. Internal Jugular Vein
Causes a thickening of the cementum around the apex
Resists forces that try to pull the tooth outward
Skeletal or soft tissue structures used as reference points in describing locations of anatomical structures or taking measurements
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein

36. How many roots/ cusps does the mandibular first molar have?
The slightly raised line extending down the middle of the hard palate
Forms into the inner lining of the oral cavitiy and enamel of the teeth
Bifurcated/ 5 cusps
An enclosed area that matures into dentin - cementum and pulp

37. Morphology
Set of arches found farther in the back of the throat
Act to maintain the gingival integrity of the marginal gingiva
Study of the structure and form of the teeth
9 weeks thru birth

38. Parotid Papilla
Digstric - Mylohyoid - stylohyoid - geniohyoid
A flap of tissue on the on the buccal mucosa
Aid in attaching the gingiva to the alveolar bone
Set of arches found farther in the back of the throat

39. Cusp of Caribelli
Week 12
Fifth cusp located on the mesial surface lingual surface of maxillary first molars
A line that represents the alveolus bone lining the socket
Where the proximal sides of two teeth come together and touch

40. How much saliva is produced daily?
Dentin found between the tubules
1500 millimeters
The study of the microscopic structure and functions of tissues
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine

41. Mastication
Small yellowish glands on the labial mucosa
The line of demarcation between the attached gingiva and the marginal gingiva
The corners of the mouth where the top and bottom lip meet
Chewing and swallowing food

42. What are the 2 sets of teeth?
A rounded area beyond the last posterior maxillary tooth
Assists in elevating the chin
Primary and permanent
Shaping the tongue during speech - mastication and swallowing

43. Midline
Tissue fluid surrounding the cell membrane of the odontoblast
Middle line of the teeth
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx
Quarters of the teeth

44. Embryology
Interdental ligament
Curve outward
The bone that separates the root on a tooth
Study of prenatal growth and the developing process of an individual

45. Internal Carotid Artery
Supplies blood to the brain and the eyes
Found only in multi-rooted teeth and resists rotational forces
Two weeks thru 8th week
Divides the crown and the root

46. Sublingual Glands
Genioglossus - hyoglossus - styloglossus - palatoglossus
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
Convex area on the lingual surface near gingiva
Week 11

47. Greater Palatine Nerve
Formed by the fibroblast cells and secures the tooth in the socket
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth
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
Resists intrusive forces that try to push the tooth inwards

48. Symphysis
A line of demarcation between the attached gingiva and alveolar mucosa
The connective tissue of the marginal gingiva
Located behind the ramus of the mandible and branches into five arteries
A concave area where two bones of the mandible are fused in the center of the mandible on the external surface

49. Purpose of premolars
Inner portion of the enamel rod
Follows the inside of the ramus and the body of the mandible
When the tissue becomes inflamed
Used to pulverize food

50. Pit
The cornerstone of the mouth
Covering over the enamel that is left over from the epithelium ameloblasts
Place where the groove comes together or fissures cross
A pocket formed by the soft tissue of cheeks and gingiva