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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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1. If a patient receives toxic agents - how long does it take for their sense of taste to return?
A duct that empties into the mouth thru the parotid papilla - Parotid gland goes with Stensen's duct
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle
10 days
The crown of the tooth that is nearest the incisal edge near the anterior tooth

2. Hyoid Bone
A horseshoe shaped bone lying at the base of the tongue--all the muscles of the tongue and the floor of the mouth attach to this bone
The ridges that run horizontally across the hard palate behind the incisive papilla
32
The crown of the tooth that is nearest the incisal edge near the anterior tooth

3. Periodontal Ligaments
The inner surface of the cheeks
(free gingiva) surrounds the teeth
Formed by the fibroblast cells and secures the tooth in the socket
Origin - fixed point - insertion - movable point

4. Maxillary Artery
Bicuspids
Inside surface Which is towards the tongue - on anterior teeth
Largest of the branches of the external carotid artery; supplies facial structure
Slight ridges on the cervical third of certain teeth that extend mesiodistally

5. Convex
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth
Retracts the tongue and raises the tip of the tongue
To bulge of curve outward
Digstric - Mylohyoid - stylohyoid - geniohyoid

6. Submandibular Glands

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7. Alveolar Mucosa
Appears to be loosely attached - covering the alveolar bone.
Two vertical extensions of the mandible
Growth from the oral epithelium that gives rise to the tooth buds
To lubricate the oral cavity and to moisten food

8. Lamina Dura
Extends from the mucogingival junction to the gingival groove
Ala of the nose - naso-labial groove - philtrum - vermilion border - vermilion zone - turbercle of the lip - labial commissures - labio-mental grooves
A line that represents the alveolus bone lining the socket
Supplies the gingival - maxillary sinus - cheeks - and maxillary molars with the exception of the mesial buccal root of the first molar

9. Labial-Mental Groove
Indented
The groove below the lower lips that separates the lips from the chin
Bicuspids
Ligaments and muscles of mastication

10. Enamel Lamellae
Narrow long enamel tuft
Sharp projection on the under surface of the temporal bone
Pointed elongations of the pulp
Portion of the lips that are red

11. Function of Stylohyoid
Circle and tighten the gingival margin around the neck of the tooth
Intervating the anterior teeth and the labial gingiva
The bone that separates the root on a tooth
Draws the hyoid bone superiorly and posteriorly and stabilizes it

12. Gingiva
Platysma - trapezius - sternocleidomastoid
Appears to be loosely attached - covering the alveolar bone.
The outer edge of the nostril
A dense tissue covered with mucous membrane that can withstand chewing

13. Lines of Retzius
Shaping the tongue during speech - mastication and swallowing
Incremental lines around the layers of the enamel matrix
Lift the hyoid bone and assist in opening the mouth
Supplies blood to the brain and the eyes

14. Odontogenesis
Origin of the tooth
When the dentin is exposed
Mildest form of cleft palate
Separation of the upper lip ( 1 of 1000 live births)

15. Primary palate
Forming organ takes shape and resembles the shape of a bell
Excess bone formations under the tongue on the alvellar bone
Supplies the gingival - maxillary sinus - cheeks - and maxillary molars with the exception of the mesial buccal root of the first molar
Separates the developing oral cavities from the nasal cavities

16. Facial Vein
Largest of the branches of the external carotid artery; supplies facial structure
Band of fibrous tissue which attaches bone to bone
Where the ectoderm layer matures into the enamel
Drains the facial structures beginning near the eye and descending toward the mandible

17. Mental Nerve Branch
Largest division of the trigeminal nerve
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip
The deepest point of the vestibule
More common in girls--the failure of the palatal shelves to fuse with the primary palate (1 in 2500 births)

18. Posterior Superior Alveolar Nerve
Supplies the gingival - maxillary sinus - cheeks - and maxillary molars with the exception of the mesial buccal root of the first molar
Smaller branch that ennervates the soft palate uvula and tonsils
The inner surface of the lips
Glands the size of a walnut that lie on the inside of the mandible and empty saliva into the mouth thru the Wharton's duct

19. Gland
Forms into the inner lining of the oral cavitiy and enamel of the teeth
Cluster of tissue that manufactures and secrets fluid
A junction or center of veins that directly or indirectly drain a vast area
Oval depression of temporal bone in condyloid process

20. Inferior Alveolar Artery
The largest of three openings located in the posterior region of the hard palate
Portion covered with cementum
Three bulges on the incisal edge
Distends the ramus - enters the mandibular foramen and bifurcates around the first premolar tooth to form the incisive and the mental arteries

21. Function of Trapezius
Moves the head backward and laterally
Respiratory system - digestive system and glandular organs
2 small raised folds of tissue where the lingual frenum attaches
Smaller - enamel thicker - pulp chamber is larger is larger - bifurcation wider

22. Uvula
A projection that extends off the back of the soft palate
Excess dryness of the mouth
Short tubules that seem to crossover to the enamel
Cells develop into different tissues

23. Angle of the Mandible
Where the ramus meets the body of the mandible on the outside border
Acts as anchors between the alveolar bone and the tooth
Natural teeth in position
A flap of tissue on the on the buccal mucosa

24. Cortical Bone
Vertical groove on the midline of the upper lip
Compact bone plate of the facial and lingual surfaces
Disk that acts like a cushion between the temporal bone and the condyloid process
Rounded depression on a tooth

25. What are the eight landmarks of the face?
Ala of the nose - naso-labial groove - philtrum - vermilion border - vermilion zone - turbercle of the lip - labial commissures - labio-mental grooves
Orbicularis oris - buccinator - mentalis - zygomatic major
Small curved lines that run parellel to the CEJ
Found only in multi-rooted teeth and resists rotational forces

26. What is the longest tooth in the mandibular arch?
Largest papilla - mushroom shaped and are anterior to the sulcus terminalis in a row of 8 to 10
Fifth cusp located on the mesial surface lingual surface of maxillary first molars
Depresses the tongue
The mandibular first premolar

27. Marginal GIngiva
(free gingiva) surrounds the teeth
Small head - low nasal bridge - thin upper lip - small mandible
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue
Joined at the midline and are often referred to as the median Palatine suture

28. Lesser Palatine Foramen
Two smaller openings located behind the greater Palatine Foramen in the posterior region of the hard palate
Forms the remaining 2/3 of the hard and soft palate uvula
Separates the developing oral cavities from the nasal cavities
To dissolve

29. Dental Sac
Synovial fluid
Cells that form cementum
Resist rotational forces and hold teeth in inter-proximal contact
An enclosed area that matures into dentin - cementum and pulp

30. How many teeth are in the Primary teeth?
20
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone
Wearing away of the incisal or occlusal surfaces of the tooth
Duct located on the parotid papilla

31. Palatine Bones
Set of arches found farther in the back of the throat
What divides the tongue in half and runs from the base to the tip of the tongue
Joined at the midline and are often referred to as the median Palatine suture
9 weeks thru birth

32. What are the three muscles of the neck?
Platysma - trapezius - sternocleidomastoid
Growth from the oral epithelium that gives rise to the tooth buds
Dividing point of a multi-rooted tooth
The corners of the mouth where the top and bottom lip meet

33. Morpho Differentiation
Forming organ takes shape and resembles the shape of a bell
A rounded area beyond the last posterior maxillary tooth
Enamel forming cells
Platysma - trapezius - sternocleidomastoid

34. Function of Hyoglossus
Begin at the caruncles on either side of the frenum and run backward to the base of the tongue
Depresses the tongue
Arteries supplying blood to most of the head and the neck
Permeante teeth replace the primary teeth

35. Interradical Fiber Group
Incremental line indicating trauma of birth
Found only in multi-rooted teeth and resists rotational forces
Disk that acts like a cushion between the temporal bone and the condyloid process
Two

36. Mastoid process
Drains the Pterygoid plexus of the veins
Bony projection found on the bottom border of the temporal bone
A period of both primary teeth and permeant teeth are in the dentition
Where the ramus meets the body of the mandible on the outside border

37. When do oral and nasal cavity separate and palate develop?
An overgrowth of the gingival tissue
Oval depression of temporal bone in condyloid process
Week 12
Opening in the mouth below the orbit on the maxillary bone

38. Sublingual Caruncles
2 small raised folds of tissue where the lingual frenum attaches
Dentin found between the tubules
Vertical groove on the midline of the upper lip
A horseshoe shaped groove that follow the curve of the dental arch

39. What is the purpose of saliva?
Elevates the posterior portion of the tongue and narrows the fauces
Excess bone in the middle of the palate
A junction or center of veins that directly or indirectly drain a vast area
To lubricate the oral cavity and to moisten food

40. Palantine Tonsils
Origin of the tooth
Located in a depressed area between the pillars
A period of both primary teeth and permeant teeth are in the dentition
Composed of mucosa and surrounds the necks of the teeth

41. Anterior Alveolar Nerve
A line of tissue that extends from the tongue to the floor of the mouth
No bicuspids/ no 3rd molars
Retracts the tongue and raises the tip of the tongue
Intervates the anterior maxillary sinus - gingiva - cuspids - laterals - and central incisors

42. Mucogingival Junction
The mandibular first premolar
Peg shaped crown with a smooth surface
Excess bone formations under the tongue on the alvellar bone
A line of demarcation between the attached gingiva and alveolar mucosa

43. Where is the palate located?
Linear elevation of the tooth
Inside of the maxillary teeth
When the tissue becomes inflamed
Cells From which connective tissue evolve

44. Transverse Ridge
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface
Incremental line indicating trauma of birth
Developmental segment of a tooth
Union of two triangular ridges that produce a single ridge of elevation that cross the occlusal surface of posterior teeth

45. Ameloblast
Maxillary third molar
Full deep rich sound in nasal cavity
Enamel forming cells
Found near the cementoenamel junction

46. What are the 12 landmarks of the oral cavity?

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47. Concave
Indented
Bony projection found on the bottom border of the temporal bone
The gingiva in the floor of the gingival sulcus that attaches to the enamel
A duct that empties into the mouth thru the parotid papilla - Parotid gland goes with Stensen's duct

48. Oblique Fiber Group
A condition where the lower frenum attachment is very short/DDS/frenectomy
Inner portion of the enamel rod
Draws the hyoid bone superiorly and posteriorly and stabilizes it
Resists intrusive forces that try to push the tooth inwards

49. Mental Protuberance
Temporal muscles - masseter muscles - internal pterygoid muscles - external pterygoid muscles
The tip of the chin
The inner surface of the lips
Two cortical bone plates that come together between each tooth

50. Soft Palate
A small projection in the middle of the upper lip
Smaller - enamel thicker - pulp chamber is larger is larger - bifurcation wider
Covers muscle tissue in the posterior portion of the palate
Outside surface Which is towards the lips

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Dental Assisting: Head And Neck Anatomy

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