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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. Interdental Gingiva
Skeletal or soft tissue structures used as reference points in describing locations of anatomical structures or taking measurements
An extension of an unattached gingiva and the tooth
The cornerstone of the mouth
Cells From which connective tissue evolve

2. Mandibular Foramen
The inner surface of the cheeks
Located on the inside of the body of the ramus
Small raised projections where taste buds are located
Cells develop into different tissues

3. Fimbriated Folds
Folds of tissue to the the lingual veins
Clear fluid secreted by the salivary and mucous glands throughout the mouth
A duct that empties into the mouth thru the parotid papilla - Parotid gland goes with Stensen's duct
A line that represents the alveolus bone lining the socket

4. Fossa
Rounded depression on a tooth
When cells rapidly increase in number
Platysma - trapezius - sternocleidomastoid
To bulge of curve outward

5. Cervical Third
When the surface of the teeth becomes grooved
The area on the crown of the tooth that is nearest the gingival
Drains the maxiallary artery and superficial temporal arteries
Extreme variations from the norm

6. Clinical root
Portion of the root seen in the oral cavity
Week 12
Constricts the nasopharyngeal passage and elevates the larynx
Duct located on the parotid papilla

7. Labial Mucosa
The connective tissue of the marginal gingiva
The inner surface of the lips
Lift the hyoid bone and assist in opening the mouth
Excess bone formations under the tongue on the alvellar bone

8. Denticion
Natural teeth in position
Small linear depression
Located on the inside of the body of the ramus
Buccal - lingual - and inferior alveolar

9. External Oblique Ridge
Calcified masses of dentin
Follows the length of the body of the mandible past the last tooth and up to the ramus
The development of different cells
Peg shaped crown with a smooth surface

10. What teeth are removed if overcrowding occurs?
Lining covers inside of the oral cavity
The tip of the chin
Bicuspids
Slight ridges on the cervical third of certain teeth that extend mesiodistally

11. Paranasal
Drains the maxiallary artery and superficial temporal arteries
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars
Tissue fluid surrounding the cell membrane of the odontoblast
Of or pertaining to area surrounding naval cavity

12. Ridge
Two
When the dentin is exposed
Linear elevation of the tooth
When cells rapidly increase in number

13. Mesenchyme Tissue
Primary embryonic mesoderm layer that develops during the morpho differentiation period
To lubricate the oral cavity and to moisten food
The space between the unattached gingiva and the tooth
Drains the facial structures beginning near the eye and descending toward the mandible

14. Gingiva
Wings of the sphenoid bone
Forms into the inner lining of the oral cavitiy and enamel of the teeth
A dense tissue covered with mucous membrane that can withstand chewing
Set of arches found farther in the back of the throat

15. Develop Mental Groove
The teeth located at the back of the mouth
Forms into the inner lining of the oral cavitiy and enamel of the teeth
Formed by the uniting of lobes during development of crown
Clear fluid secreted by the salivary and mucous glands throughout the mouth

16. What is the function of the buccle nerve branch?
Extreme variations from the norm
Outside surface Which is towards the cheek - on posterior teeth
When the dentin is exposed
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars

17. How much saliva is produced daily?
Extends from the medial corner of the eye to the nasal cavity
A line that represents the alveolus bone lining the socket
1500 millimeters
Where the ectoderm layer matures into the enamel

18. Groove
Formed by the uniting of lobes during development of crown
Small linear depression
Drains the facial structures beginning near the eye and descending toward the mandible
Origin - fixed point - insertion - movable point

19. Alveolar Crest Fiber Group
Located behind the ramus of the mandible and branches into five arteries
Supplies blood to the temporal muscle - masseter muscle - pterygoid muscle and buccanator
Function to resist rotational forces and tilting
Excess bone in the middle of the palate

20. Mental Protuberance
The tip of the chin
Moves the head backward and laterally
The space between the unattached gingiva and the tooth
Resists forces that try to pull the tooth outward

21. Dental Lamina
Middle line of the teeth
Inside of the maxillary teeth
A pocket formed by the soft tissue of cheeks and gingiva
Growth from the oral epithelium that gives rise to the tooth buds

22. Enamel Lamellae
The tip of the chin
A faint line going from the ala of the nose to the corner of the mouth
Narrow long enamel tuft
Shaping the tongue during speech - mastication and swallowing

23. Mucogingival Junction
A line of demarcation between the attached gingiva and alveolar mucosa
Interdental ligament
Three cusps/ trifurcated
To lubricate the oral cavity and to moisten food

24. Glenoid Fossa
Pulverizing or chewing surface
Creates the wall of the dentinal tubule
Inner portion of the enamel rod
Oval depression of temporal bone in condyloid process

25. Sublingual Caruncles
Mastication - aids in speech - influence facial structure - chewing surfaces
The bone that separates the root on a tooth
2 small raised folds of tissue where the lingual frenum attaches
Lift the hyoid bone and assist in opening the mouth

26. Embryo
Short tubules that seem to crossover to the enamel
Two weeks thru 8th week
Outside surface Which is towards the lips
Middle two teeth in the mouth

27. Maxillary Arch
Digstric - Mylohyoid - stylohyoid - geniohyoid
Upper arch of the teeth
Radiates from the developmental groove
Indented

28. Histo Differentiation
Responsible for laying down the enamel matrix into place
Cells develop into different tissues
Formed by the fibroblast cells and secures the tooth in the socket
Draws down the mandible and corners of the mouth

29. Cleft Palate
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue
Week 12
More common in girls--the failure of the palatal shelves to fuse with the primary palate (1 in 2500 births)
Bone that surrounds the root of the tooth

30. Anterior Alveolar Nerve
Portion of the lips that are red
Found only in multi-rooted teeth and resists rotational forces
Molaris meaning millstone
Intervates the anterior maxillary sinus - gingiva - cuspids - laterals - and central incisors

31. Lines of Retzius
Incremental lines around the layers of the enamel matrix
Radiates from the developmental groove
Occurs in unusual ways and distorted crowns may appear
20

32. How is the TMJ supported and what controls their movement?
Small dark brushes
The internal surface at the center of the mandible
The portion of the tooth that meets the gingiva
Ligaments and muscles of mastication

33. Lamina Propria
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue
Looking at the border of the tongue
A period of both primary teeth and permeant teeth are in the dentition
The connective tissue of the marginal gingiva

34. What are the 3 branches of the pterygopalatine nerve branch?
The largest of three openings located in the posterior region of the hard palate
Drains the floor of the mouth
Ligaments and muscles of mastication
Greater - lesser - naso palatine nerves

35. Lingual Veins
Calcium salts are deposited into formed tooth
Bluish veins that run the length of the tongue
Where the ectoderm layer matures into the enamel
Formed by the fibroblast cells and secures the tooth in the socket

36. Cementoblast
Dentin found between the tubules
Intervates the anterior maxillary sinus - gingiva - cuspids - laterals - and central incisors
Cells that form cementum
The inner surface of the cheeks

37. Internal Oblique Ridge
Supplies blood to the roots and periodontal ligaments of the interior teeth
Arteries supplying blood to most of the head and the neck
Follows the inside of the ramus and the body of the mandible
Linear elevation of the tooth

38. Horizontal Fiber Group
Small curved lines that run parellel to the CEJ
Follows the length of the body of the mandible past the last tooth and up to the ramus
Functions the same as the alveolar cfg; originate in alveolar bone
Supportive fibers that anchor the tooth to the bone

39. Interradical Fiber Group
Branches off the inferior alveolar artery before intering the mandibular canal
Oval depression of temporal bone in condyloid process
Cheek bones--the most breakable bone in the body
Found only in multi-rooted teeth and resists rotational forces

40. What is the purpose of saliva?
Band of fibrous tissue which attaches muscle to bone
To lubricate the oral cavity and to moisten food
Composed of mucosa and surrounds the necks of the teeth
Two

41. What is Ankyloglossia and who can treat it / What is the treatment called?
When cells rapidly increase in number
Extends from the medial corner of the eye to the nasal cavity
Chewing and swallowing food
A condition where the lower frenum attachment is very short/DDS/frenectomy

42. Cleft Uvula
Mildest form of cleft palate
Full deep rich sound in nasal cavity
Greater - lesser - naso palatine nerves
Allow flexibility during mastication - speech

43. Rod Core
Inner portion of the enamel rod
Demonstrates a disturbance in the body metabolism
Intervating the anterior teeth and the labial gingiva
Dividing point of a multi-rooted tooth

44. What are the four main functions of deciduous teeth?
Mastication - aids in speech - influence facial structure - chewing surfaces
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein
Tubules that pass through the entire surface of the dentin
Scroll like bones outside the nasal cavaties

45. What are the 4 extrinsic muscles of the tongue
Supplies blood to the face and oral cavity
To lubricate the oral cavity and to moisten food
Genioglossus - hyoglossus - styloglossus - palatoglossus
Pulls the hyoid bone and the tongue anteriorly

46. Pit
Small raised projections where taste buds are located
Study of the structure and form of the teeth
Place where the groove comes together or fissures cross
Hinge motion and gliding movement

47. What are the two muscles of the soft palate?
Disk that acts like a cushion between the temporal bone and the condyloid process
Small head - low nasal bridge - thin upper lip - small mandible
12 years
Palatoglossus - palatopharyngeal

48. Posterior Superior Alveolar Nerve
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
Covers muscle tissue in the posterior portion of the palate
Of or pertaining to area surrounding naval cavity
Supplies the gingival - maxillary sinus - cheeks - and maxillary molars with the exception of the mesial buccal root of the first molar

49. Linea Alba
Rounded depression on a tooth
Stained growth rings in dentin
A raised white line that runs parallel to where the teeth meet on the buccal mucosa
Dentin found between the tubules

50. How can you tell if someone has cancer by looking at the tongue?
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine
Demonstrates a disturbance in the body metabolism
Looking at the border of the tongue
Retracts or depresses the tongue