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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. Symphysis
The portion of the tooth that meets the gingiva
A concave area where two bones of the mandible are fused in the center of the mandible on the external surface
Full deep rich sound in nasal cavity
The internal surface at the center of the mandible

2. Paranasal
Distends the ramus - enters the mandibular foramen and bifurcates around the first premolar tooth to form the incisive and the mental arteries
Bony projection found on the bottom border of the temporal bone
Arteries supplying blood to most of the head and the neck
Of or pertaining to area surrounding naval cavity

3. Buckle groove
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth
Rounded depression on a tooth
When the dentin is exposed
Portion of the lips where the skin meets the vermilion zone

4. Labial Commissures
A pocket formed by the soft tissue of cheeks and gingiva
Place where the groove comes together or fissures cross
Causes a thickening of the cementum around the apex
Corners of the mouth

5. Function of Platysma
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
Palatoglossus - palatopharyngeal
Draws down the mandible and corners of the mouth
To lubricate the oral cavity and to moisten food

6. Peg lateral
Peg shaped crown with a smooth surface
Fifth cusp located on the mesial surface lingual surface of maxillary first molars
Study of the structure and form of the teeth
More common in girls--the failure of the palatal shelves to fuse with the primary palate (1 in 2500 births)

7. Cuspid
Third tooth from the midline
Arteries supplying blood to most of the head and the neck
Band of fibrous tissue which attaches bone to bone
Excess dryness of the mouth

8. Denticion
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle
Natural teeth in position
Band of fibrous tissue which attaches muscle to bone
Largest papilla - mushroom shaped and are anterior to the sulcus terminalis in a row of 8 to 10

9. Pterygoid plexus of the veins
Cluster of tissue that manufactures and secrets fluid
Draws the hyoid bone superiorly and posteriorly and stabilizes it
A junction or center of veins that directly or indirectly drain a vast area
Hinge motion and gliding movement

10. Linea Alba
Bone that surrounds the root of the tooth
A raised white line that runs parallel to where the teeth meet on the buccal mucosa
The development of different forms
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

11. Pterygoid Artery
Middle two teeth in the mouth
Causes a thickening of the cementum around the apex
Supplies blood to the temporal muscle - masseter muscle - pterygoid muscle and buccanator
Two

12. Retro Mandibular Vein
Drains the maxiallary artery and superficial temporal arteries
2 to 3 pints
The gingiva in the floor of the gingival sulcus that attaches to the enamel
A rounded area beyond the last posterior maxillary tooth

13. Odontoblast
To bulge of curve outward
Fifth cusp located on the mesial surface lingual surface of maxillary first molars
Corners of the mouth
Cells that form dentin

14. Occlusion third
Vestibule - vestibule fornix - labial mucosa - buccal mucosa - parotid papilla - Stenson's duct - linea alba - Fordyce's spots - alveolar mucosa - gingiva - labial frenum - buccal frenum
Occlusal surface of the posterior tooth
Separation of the upper lip ( 1 of 1000 live births)
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx

15. What teeth are removed if overcrowding occurs?
Cut - tear - and grind food
Draws down the mandible and corners of the mouth
Bicuspids
Cheek bones--the most breakable bone in the body

16. What are the 4 extrinsic muscles of the tongue
Creates the wall of the dentinal tubule
Genioglossus - hyoglossus - styloglossus - palatoglossus
Week 11
Retracts or depresses the tongue

17. Sublingual Glands
Used to pulverize food
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
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth
Digstric - Mylohyoid - stylohyoid - geniohyoid

18. What is the largest cranial nerve and the most important to dental auxillaries and why?
Orbicularis oris - buccinator - mentalis - zygomatic major
Assist in depressing the mandible and elevating the tongue
A pocket formed by the soft tissue of cheeks and gingiva
Trigeminal nerve--because it ennervates the maxilla and the mandible

19. Develop Mental Groove
A line of tissue that extends from the tongue to the floor of the mouth
Bone that surrounds the root of the tooth
A rounded area beyond the last posterior maxillary tooth
Formed by the uniting of lobes during development of crown

20. Mylohyoid Nerve Branch
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle
Retracts or depresses the tongue
The layer of dentin that surrounds the pulp
Tissue covering the alveolar processes

21. What are the only permeant teeth that are not succedaneous?
Molars
Teeth will not erupt in proper position
Oval depression of temporal bone in condyloid process
Portion of the root seen in the oral cavity

22. Meniscus
Orbicularis oris - buccinator - mentalis - zygomatic major
Wearing away of the incisal or occlusal surfaces of the tooth
Week 11
Disk that acts like a cushion between the temporal bone and the condyloid process

23. Filiform Papillae
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue
Fleshy elevation under the tongue
Supplies blood to the temporal muscle - masseter muscle - pterygoid muscle and buccanator
Second teeth next to central incisors

24. Osteoclasts
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged
32
Ala of the nose - naso-labial groove - philtrum - vermilion border - vermilion zone - turbercle of the lip - labial commissures - labio-mental grooves
The fixed attachment of a muscle

25. Circular Ligament Fiber Groups
Forms into dentin - cementum and pulp of the teeth
Circle and tighten the gingival margin around the neck of the tooth
Forming organ takes shape and resembles the shape of a bell
Creates the wall of the dentinal tubule

26. Glenoid Fossa
The deepest point of the vestibule
Draws the hyoid bone superiorly and posteriorly and stabilizes it
Oval depression of temporal bone in condyloid process
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle

27. Epithelial Attachment
The gingiva in the floor of the gingival sulcus that attaches to the enamel
The disc becomes displaced
Set of arches found farther in the back of the throat
A shallow v-shaped depression located below the bottom of the nose and above the lips

28. Mesoderm
Primary and permanent
Oval structures that are located on the dorsal surface of the tongue
Found only in multi-rooted teeth and resists rotational forces
Forms into dentin - cementum and pulp of the teeth

29. Tubercle of the Lip
Lower arch of the teeth
Creates the wall of the dentinal tubule
A small projection in the middle of the upper lip
A projection that extends off the back of the soft palate

30. What teeth do the deciduous (baby) tooth not include?
No bicuspids/ no 3rd molars
Arteries supplying blood to most of the head and the neck
Papillae that give the tongue the strawberry effect
Middle line of the teeth

31. Periodontal Ligaments
Formed by the fibroblast cells and secures the tooth in the socket
Corners of the mouth
Lining covers inside of the oral cavity
Initiation of the tooth begins

32. Cusps
Separates the developing oral cavities from the nasal cavities
Pointed or rounded mounds on the crown of the tooth
The groove below the lower lips that separates the lips from the chin
The deepest point of the vestibule

33. Dentinal Tubules
Small grooves noted on some teeth
Joined at the midline and are often referred to as the median Palatine suture
Tubules that pass through the entire surface of the dentin
Initiation of the tooth begins

34. Dental Sac
Pulls the hyoid bone and the tongue anteriorly
When the tissue becomes inflamed
An enclosed area that matures into dentin - cementum and pulp
Drains the Pterygoid plexus of the veins

35. Dentinal Fluid
Drains the Pterygoid plexus of the veins
Tissue fluid surrounding the cell membrane of the odontoblast
Bicuspids
Supplies blood to the roots and periodontal ligaments of the molars and premolars

36. Interradical Fiber Group
Narrow long enamel tuft
Full deep rich sound in nasal cavity
Found only in multi-rooted teeth and resists rotational forces
The inner surface of the cheeks

37. Fibroblasts
Cells From which connective tissue evolve
Scroll like bones outside the nasal cavaties
Of or pertaining to area surrounding naval cavity
Teeth after cuspids

38. Genial Tubercles
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein
Surface away from the midline
Initiation of the tooth begins
Small bony projections surrounding the lingual foramen

39. How is the TMJ supported and what controls their movement?
Ligaments and muscles of mastication
Small raised projections where taste buds are located
Depresses the tongue
Supplies blood to the roots and periodontal ligaments of the interior teeth

40. Enamel Dysplasia
Anterior to the ethmoid bone and part of the orbit (corners of the eye)
Circle and tighten the gingival margin around the neck of the tooth
Cells that form cementum
When the surface of the teeth becomes grooved

41. Horizontal Fiber Group
The moveable attachment of the muscle
Functions the same as the alveolar cfg; originate in alveolar bone
An overgrowth of the gingival tissue
Also known as meniscus it is a dense fibrous connective tissue that is thicker at the ends and attached to the condyle

42. Apical Fiber Group
A condition where the lower frenum attachment is very short/DDS/frenectomy
Resists forces that try to pull the tooth outward
Formed by the fibroblast cells and secures the tooth in the socket
A flap of tissue on the on the buccal mucosa

43. Palatine Raphe
The slightly raised line extending down the middle of the hard palate
A junction or center of veins that directly or indirectly drain a vast area
Small bony projections surrounding the lingual foramen
A pocket formed by the soft tissue of cheeks and gingiva

44. What kind of root does the maxillary first molar have?
Folds of tissue that extend horizontally from the uvula to the base of the tongue
Triferacated
Origin - fixed point - insertion - movable point
Lining covers inside of the oral cavity

45. Lingual
The first predentin that is formed and matures within the tube
Largest papilla - mushroom shaped and are anterior to the sulcus terminalis in a row of 8 to 10
Inside surface Which is towards the tongue - on anterior teeth
Portion of the lips where the skin meets the vermilion zone

46. What are the 4 taste senses and where are they located?
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue
Compact bone plate of the facial and lingual surfaces
Composed of mucosa and surrounds the necks of the teeth
Greater - lesser - naso palatine nerves

47. Internal Oblique Ridge
Follows the inside of the ramus and the body of the mandible
The moveable attachment of the muscle
Maxillary third molar
4/5 cusps/ 3 roots

48. Circumpulpal Dentin
Mucosa that covers the alveolar bone
Cells From which connective tissue evolve
The layer of dentin that surrounds the pulp
Study of the structure and form of the teeth

49. Naso Palatine Nerve
The internal surface at the center of the mandible
The largest of three openings located in the posterior region of the hard palate
Set of arches found farther in the back of the throat
Extends interiorly from the pterygopalatine nerve and exits thru the incisive foramen

50. What is origin and What is insertion?
Origin - fixed point - insertion - movable point
Where the ectoderm layer matures into the enamel
Band of fibrous tissue which attaches muscle to bone
Folds of tissue to the the lingual veins

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Dental Assisting: Head And Neck Anatomy

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