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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.
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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. Evanesce
The first predentin that is formed and matures within the tube
Origin of the tooth
To dissolve
Allow flexibility during mastication - speech

2. Occlusal
Aid in attaching the gingiva to the alveolar bone
Creates the wall of the dentinal tubule
Pulverizing or chewing surface
Permeante teeth replace the primary teeth

3. Function of Palatoglossus
Buccal - lingual - and inferior alveolar
Inside of the maxillary teeth
Elevates the posterior portion of the tongue and narrows the fauces
Molars

4. Central Incisor
Digstric - Mylohyoid - stylohyoid - geniohyoid
Arteries supplying blood to most of the head and the neck
The portion of the tooth that meets the gingiva
Middle two teeth in the mouth

5. Fimbriated Folds
Drains the superficial veins of the face and neck into the subclavian vein
Supplies blood to the roots and periodontal ligaments of the molars and premolars
A rounded area beyond the last posterior maxillary tooth
Folds of tissue to the the lingual veins

6. Deep Facial Veins
Responsible for laying down the enamel matrix into place
Mucosa that covers the alveolar bone
Tributary of the facial vein which connects the facial vein to the pterygoid plexus of the veins
Trigeminal - facial - glossopharyngeal - hypoglossal

7. Mesial
Skeletal or soft tissue structures used as reference points in describing locations of anatomical structures or taking measurements
Surface towards the midline
Separation of the upper lip ( 1 of 1000 live births)
Folds of tissue to the the lingual veins

8. Interradicular Septum
Functions the same as the alveolar cfg; originate in alveolar bone
Found only in multi-rooted teeth and resists rotational forces
Slight ridges on the cervical third of certain teeth that extend mesiodistally
The bone that separates the root on a tooth

9. Labial Commissures
Primary embryonic mesoderm layer that develops during the morpho differentiation period
Bluish veins that run the length of the tongue
Shaping the tongue during speech - mastication and swallowing
Corners of the mouth

10. Fungiform Papillae
Follows the length of the body of the mandible past the last tooth and up to the ramus
Calcified masses of dentin
Orbicularis oris - buccinator - mentalis - zygomatic major
Papillae that give the tongue the strawberry effect

11. Embrasure
Triangular space in the gingival direction when two adjacent teeth are in contact
Smaller branch that ennervates the soft palate uvula and tonsils
Supplies blood to the roots and periodontal ligaments of the interior teeth
To dissolve

12. Secondary palate
A pocket formed by the soft tissue of cheeks and gingiva
The groove below the lower lips that separates the lips from the chin
Forms the remaining 2/3 of the hard and soft palate uvula
Synovial fluid

13. When do the tooth buds appear?
Two smaller openings located behind the greater Palatine Foramen in the posterior region of the hard palate
Week 11
A duct that empties into the mouth thru the parotid papilla - Parotid gland goes with Stensen's duct
The largest of the salivary glands which lie just below and in front of the ear

14. Maxillary Artery
Full deep rich sound in nasal cavity
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids
Largest of the branches of the external carotid artery; supplies facial structure
Covering over the enamel that is left over from the epithelium ameloblasts

15. Buccal
Natural teeth in position
10 days
Outside surface Which is towards the cheek - on posterior teeth
Genioglossus - hyoglossus - styloglossus - palatoglossus

16. What are the three muscles of the neck?
Molaris meaning millstone
Causes a thickening of the cementum around the apex
Platysma - trapezius - sternocleidomastoid
Formed by the uniting of lobes during development of crown

17. What is the largest cranial nerve and the most important to dental auxillaries and why?
Trigeminal nerve--because it ennervates the maxilla and the mandible
The portion of the tooth that meets the gingiva
Synovial fluid
To dissolve

18. Gums
Distends the ramus - enters the mandibular foramen and bifurcates around the first premolar tooth to form the incisive and the mental arteries
Papillae that give the tongue the strawberry effect
Tissue covering the alveolar processes
No bicuspids/ no 3rd molars

19. Midline
Outside surface Which is towards the cheek - on posterior teeth
Supplies blood to the temporal muscle - masseter muscle - pterygoid muscle and buccanator
Middle line of the teeth
Molars

20. Tubercle of the Lip
Begin at the caruncles on either side of the frenum and run backward to the base of the tongue
Small head - low nasal bridge - thin upper lip - small mandible
Two vertical extensions of the mandible
A small projection in the middle of the upper lip

21. What are the 4 pairs of muscles of mastication!
Bicuspids
Temporal muscles - masseter muscles - internal pterygoid muscles - external pterygoid muscles
To bulge of curve outward
Resists intrusive forces that try to push the tooth inwards

22. Function of Stylohyoid
Occlusal surface of the posterior tooth
A line that represents the alveolus bone lining the socket
Supplies blood to the temporal muscle - masseter muscle - pterygoid muscle and buccanator
Draws the hyoid bone superiorly and posteriorly and stabilizes it

23. Lingual Veins
The largest of three openings located in the posterior region of the hard palate
Bluish veins that run the length of the tongue
Primary embryonic mesoderm layer that develops during the morpho differentiation period
Lining covers inside of the oral cavity

24. Cervical Third
The area on the crown of the tooth that is nearest the gingival
Incremental lines around the layers of the enamel matrix
Wearing away of the incisal or occlusal surfaces of the tooth
Fifth cusp located on the mesial surface lingual surface of maxillary first molars

25. Transverse Ridge
Union of two triangular ridges that produce a single ridge of elevation that cross the occlusal surface of posterior teeth
Found only in multi-rooted teeth and resists rotational forces
Depresses the tongue
Function to resist rotational forces and tilting

26. Greater Palatine Nerve
The tip of the chin
The ridges that run horizontally across the hard palate behind the incisive papilla
Fleshy elevation under the tongue
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth

27. Triangular Ridge
Excess dryness of the mouth
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface
Separates the developing oral cavities from the nasal cavities
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth

28. Primary Dentin
Outside surface Which is towards the cheek - on posterior teeth
Forms the bulk of the tooth
Forms a large cavity above the roots of the maxillary molars
Cut - tear - and grind food

29. Genial Tubercles
The tip of the chin
Mildest form of cleft palate
Bifurcated/ 5 cusps
Small bony projections surrounding the lingual foramen

30. Maxillary Tuberosity
Drains the Pterygoid plexus of the veins
Elevated area fo enamel that extends obliquely across the occlusal surface of the tooth
A rounded area beyond the last posterior maxillary tooth
Forms into dentin - cementum and pulp of the teeth

31. Stenson's Duct
Duct located on the parotid papilla
Cells From which connective tissue evolve
Maxillary third molar
Radiates from the developmental groove

32. Imbritation Lines of Von Eboner
Distends the ramus - enters the mandibular foramen and bifurcates around the first premolar tooth to form the incisive and the mental arteries
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars
Stained growth rings in dentin
Responsible for laying down the enamel matrix into place

33. Filiform Papillae
Peg shaped crown with a smooth surface
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue
The tip of the chin
Functions the same as the alveolar cfg; originate in alveolar bone

34. Incisal Edge
Cluster of tissue that manufactures and secrets fluid
The gingiva in the floor of the gingival sulcus that attaches to the enamel
Lining covers inside of the oral cavity
Biting edge of the teeth

35. Calcification
Extends interiorly from the pterygopalatine nerve and exits thru the incisive foramen
Week 11
Layers of tooth tissue become calcified
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface

36. Nasmyths Membrane
Greater - lesser - naso palatine nerves
Covering over the enamel that is left over from the epithelium ameloblasts
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx
Cells develop into different tissues

37. Incisive Nerve branch
Pulverizing or chewing surface
Intervating the anterior teeth and the labial gingiva
Of or pertaining to area surrounding naval cavity
Composed of mucosa and surrounds the necks of the teeth

38. Concave
Pointed elongations of the pulp
Portion of the lips that are red
Indented
Mucosa that covers the alveolar bone

39. Periodontium
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone
A horseshoe shaped groove that follow the curve of the dental arch
A junction or center of veins that directly or indirectly drain a vast area
The bone that separates the root on a tooth

40. Enamel Dysplasia
Portion covered with cementum
Outside surface Which is towards the cheek - on posterior teeth
When the surface of the teeth becomes grooved
Maxillary first molar

41. Symphysis
Small linear depression
A concave area where two bones of the mandible are fused in the center of the mandible on the external surface
Occurs in unusual ways and distorted crowns may appear
Secrete saliva to assist in process of digestion

42. Lingual Nerve Branch
Slight ridges on the cervical third of certain teeth that extend mesiodistally
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
Maxillary third molar
The portion of the tooth that meets the gingiva

43. Greater Palatine Foramen
Retracts or depresses the tongue
The largest of three openings located in the posterior region of the hard palate
Middle two teeth in the mouth
Forms into dentin - cementum and pulp of the teeth

44. What is the purpose of permanent teeth?
Retracts or depresses the tongue
Excess dryness of the mouth
Supportive fibers that anchor the tooth to the bone
Cut - tear - and grind food

45. Which molar is the wisdom tooth
Maxillary third molar
A pocket formed by the soft tissue of cheeks and gingiva
Cells that form dentin
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged

46. Embryology
A horseshoe shaped groove that follow the curve of the dental arch
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 roots and periodontal ligaments of the molars and premolars
Study of prenatal growth and the developing process of an individual

47. Odontoblast
Forming organ takes shape and resembles the shape of a bell
Anterior to the ethmoid bone and part of the orbit (corners of the eye)
The first predentin that is formed and matures within the tube
Cells that form dentin

48. Morpho Differentiation
Exits the mandibular canal at the mental foramen and supplies the chin and lower lip
6 months/3years
Forming organ takes shape and resembles the shape of a bell
Palatoglossus - palatopharyngeal

49. Horizontal Fiber Group
Opening in the mouth below the orbit on the maxillary bone
Functions the same as the alveolar cfg; originate in alveolar bone
Shed from the oral cavity
Temporal muscles - masseter muscles - internal pterygoid muscles - external pterygoid muscles

50. Mylohyoid Artery
Inside surface Which is towards the tongue - on anterior teeth
Cells develop into different tissues
Branches off the inferior alveolar artery before intering the mandibular canal
A faint line going from the ala of the nose to the corner of the mouth

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Dental Assisting: Head And Neck Anatomy

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