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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. TMJ bones are bathed In what solution?
Forms after the completion of the apical foramen
Synovial fluid
Week 11
Extends from the mucogingival junction to the gingival groove

2. Function of Geneoglossus?
Retracts or depresses the tongue
Excess bone formations under the tongue on the alvellar bone
The mandibular molars
Trigeminal - facial - glossopharyngeal - hypoglossal

3. Zygomatic nerve
Joined at the midline and are often referred to as the median Palatine suture
Innervates the orbicular oculi - the area around the eye - and the area around and behind the zygomatic arch
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface
What divides the tongue in half and runs from the base to the tip of the tongue

4. Vestibule Fornix
The deepest point of the vestibule
Biting edge of the teeth
Folds of tissue to the the lingual veins
Set of arches found farther in the back of the throat

5. Dentinal Fluid
Bluish veins that run the length of the tongue
Tissue fluid surrounding the cell membrane of the odontoblast
Cluster of tissue that manufactures and secrets fluid
A flap of tissue on the on the buccal mucosa

6. What are the eight landmarks of the face?
Teeth after cuspids
Ala of the nose - naso-labial groove - philtrum - vermilion border - vermilion zone - turbercle of the lip - labial commissures - labio-mental grooves
Branches off the inferior alveolar artery before intering the mandibular canal
Supplies blood to the brain and the eyes

7. Lingual Frenum
A line of tissue that extends from the tongue to the floor of the mouth
Drains the maxiallary artery and superficial temporal arteries
The groove below the lower lips that separates the lips from the chin
A projection that extends off the back of the soft palate

8. What are the only permeant teeth that are not succedaneous?
Convex area on the lingual surface near gingiva
The connective tissue of the marginal gingiva
Portion covered with cementum
Molars

9. Maxillary vein
Small bony projections surrounding the lingual foramen
Assists in elevating the chin
Drains the Pterygoid plexus of the veins
Pointed or rounded mounds on the crown of the tooth

10. Gingival Hyperplasia
A rounded area beyond the last posterior maxillary tooth
Study of prenatal growth and the developing process of an individual
Tissue covering the alveolar processes
An overgrowth of the gingival tissue

11. Pterygoid plexus of the veins
A junction or center of veins that directly or indirectly drain a vast area
Canal or passage for fluid
Largest division of the trigeminal nerve
Of or pertaining to area surrounding naval cavity

12. Convects
Curve outward
Week 12
The development of different cells
Appears to be loosely attached - covering the alveolar bone.

13. Lingual Vein
Drains the floor of the mouth
Supplies blood to the roots and periodontal ligaments of the molars and premolars
Third tooth from the midline
Extreme variations from the norm

14. Tome's process
Responsible for laying down the enamel matrix into place
Surface towards the midline
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
Digstric - Mylohyoid - stylohyoid - geniohyoid

15. Dentogingival Fiber Groups
The deepest point of the vestibule
Covers muscle tissue in the posterior portion of the palate
Bony projection found on the bottom border of the temporal bone
Act to maintain the gingival integrity of the marginal gingiva

16. What are the 4 pairs of muscles of mastication!
Small yellowish glands on the labial mucosa
Cells develop into different tissues
Temporal muscles - masseter muscles - internal pterygoid muscles - external pterygoid muscles
Cheek bones--the most breakable bone in the body

17. What are the 4 maxillary nerve branches?
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine
Tissue fluid surrounding the cell membrane of the odontoblast
Enamel is thinner - pulp chamber is smaller -
Resists forces that try to pull the tooth outward

18. What are the 4 extrinsic muscles of the tongue
Duct located on the parotid papilla
Genioglossus - hyoglossus - styloglossus - palatoglossus
Peg shaped crown with a smooth surface
The disc becomes displaced

19. Lingual Veins
(free gingiva) surrounds the teeth
Bluish veins that run the length of the tongue
4/5 cusps/ 3 roots
The portion of the tooth that meets the gingiva

20. Dental Sac
Occlusal surface of the posterior tooth
Vertical groove on the midline of the upper lip
An enclosed area that matures into dentin - cementum and pulp
Teeth after cuspids

21. Retro Mandibular Vein
A flap of tissue on the on the buccal mucosa
A bony projection that separates each socket
Drains the maxiallary artery and superficial temporal arteries
Tissue covering the alveolar processes

22. How many cusps/ roots do the 2/3rd mandibular molars have?
4 cusps/ bifurcated
Digstric - Mylohyoid - stylohyoid - geniohyoid
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip
Small yellowish glands on the labial mucosa

23. Anomalies
Extreme variations from the norm
Separates the developing oral cavities from the nasal cavities
Trigeminal - facial - glossopharyngeal - hypoglossal
Convex area on the lingual surface near gingiva

24. Muscle origine
Skeletal or soft tissue structures used as reference points in describing locations of anatomical structures or taking measurements
The fixed attachment of a muscle
Temporal muscles - masseter muscles - internal pterygoid muscles - external pterygoid muscles
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue

25. When does the maxillary second molar erupt?
12 years
The outer edge of the nostril
Elevated are of enamel that forms the Mesial and distal borders
Scroll like bones outside the nasal cavaties

26. Posterior Teeth
The gingiva in the floor of the gingival sulcus that attaches to the enamel
The teeth located at the back of the mouth
9 weeks thru birth
Origin - fixed point - insertion - movable point

27. Palantine Tonsils
Located in a depressed area between the pillars
Supplies blood to the roots and periodontal ligaments of the interior teeth
The inner surface of the cheeks
Dividing point of a multi-rooted tooth

28. External Jugular Vein
Drains the superficial veins of the face and neck into the subclavian vein
Hinge motion and gliding movement
Causes a thickening of the cementum around the apex
Three bulges on the incisal edge

29. Tendon
Found only in multi-rooted teeth and resists rotational forces
Forms after the completion of the apical foramen
Enamel forming cells
Band of fibrous tissue which attaches muscle to bone

30. What is the function of the buccle nerve branch?
Portion of the lips that are red
Forms into dentin - cementum and pulp of the teeth
The layer of dentin that surrounds the pulp
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars

31. Maxillary Artery
32
Largest of the branches of the external carotid artery; supplies facial structure
Two smaller openings located behind the greater Palatine Foramen in the posterior region of the hard palate
Duct located on the parotid papilla

32. Ridge
Folds of tissue to the the lingual veins
Bone that surrounds the root of the tooth
The inner surface of the cheeks
Linear elevation of the tooth

33. Gingival Groove
Of or pertaining to area surrounding naval cavity
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle
The line of demarcation between the attached gingiva and the marginal gingiva
9 weeks thru birth

34. Stomedeum
A bat shaped bone which forms the anterior portion of the skull
Upper arch of the teeth
Primitive mouth
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein

35. What is the purpose of permanent teeth?
A shallow v-shaped depression located below the bottom of the nose and above the lips
Cut - tear - and grind food
Functions the same as the alveolar cfg; originate in alveolar bone
Drains the maxiallary artery and superficial temporal arteries

36. Interradical Fiber Group
A raised area of tissue laying behind the maxillary central incisors on the hard palate
Elevated are of enamel that forms the Mesial and distal borders
Distends the ramus - enters the mandibular foramen and bifurcates around the first premolar tooth to form the incisive and the mental arteries
Found only in multi-rooted teeth and resists rotational forces

37. Histo Differentiation
To dissolve
Extends interiorly from the pterygopalatine nerve and exits thru the incisive foramen
Act to maintain the gingival integrity of the marginal gingiva
Cells develop into different tissues

38. Labial-Mental Groove
The groove below the lower lips that separates the lips from the chin
A small projection in the middle of the upper lip
Small head - low nasal bridge - thin upper lip - small mandible
Innervates the orbicular oculi - the area around the eye - and the area around and behind the zygomatic arch

39. Convex
Fleshy elevation under the tongue
Trigeminal nerve--because it ennervates the maxilla and the mandible
Forms the bulk of the tooth
To bulge of curve outward

40. Mastication
Chewing and swallowing food
Drains the floor of the mouth
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx
6 years old

41. Mesenchyme Tissue
Drains the Pterygoid plexus of the veins
Interdental ligament
Primary embryonic mesoderm layer that develops during the morpho differentiation period
Pulverizing or chewing surface

42. Embrasure
Triangular space in the gingival direction when two adjacent teeth are in contact
Corners of the mouth
Maxillary third molar
The largest of three openings located in the posterior region of the hard palate

43. What is the latin word for molar?
Outside surface Which is towards the lips
Molaris meaning millstone
4 cusps/ bifurcated
Two cortical bone plates that come together between each tooth

44. Enamel Tufts
Occlusal surface of the posterior tooth
Origin - fixed point - insertion - movable point
Small dark brushes
Excess bone in the middle of the palate

45. Maxillary Nerve Branch
Pointed or rounded mounds on the crown of the tooth
A raised area of tissue laying behind the maxillary central incisors on the hard palate
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx
Bicuspids

46. Horizontal Fiber Group
Healthy gingival tissue with an orange texture
Trigeminal - facial - glossopharyngeal - hypoglossal
Functions the same as the alveolar cfg; originate in alveolar bone
Draws down the mandible and corners of the mouth

47. Morpho differentiation
Primary embryonic mesoderm layer that develops during the morpho differentiation period
Substances between cells
Where the ectoderm layer matures into the enamel
The development of different forms

48. Oblique Fiber Group
Two
The inner surface of the lips
Resists intrusive forces that try to push the tooth inwards
Surface towards the midline

49. Foliate Papillae
Dentin found between the tubules
Demonstrates a disturbance in the body metabolism
Raised vertical folds of tissue on the lateral border of the tongue
2 small raised folds of tissue where the lingual frenum attaches

50. Lingual
Supplies the gingival - maxillary sinus - cheeks - and maxillary molars with the exception of the mesial buccal root of the first molar
Inside surface Which is towards the tongue - on anterior teeth
Intervates the anterior maxillary sinus - gingiva - cuspids - laterals - and central incisors
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein

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Dental Assisting: Head And Neck Anatomy

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