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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. Fungiform Papillae
A raised area of tissue laying behind the maxillary central incisors on the hard palate
Papillae that give the tongue the strawberry effect
Triferacated
Forms a large cavity above the roots of the maxillary molars

2. Posterior Tonsillar Pillar
Set of arches found farther in the back of the throat
Ala of the nose - naso-labial groove - philtrum - vermilion border - vermilion zone - turbercle of the lip - labial commissures - labio-mental grooves
Palatoglossus - palatopharyngeal
Composed of mucosa and surrounds the necks of the teeth

3. Evanesce
To bulge of curve outward
Corners of the mouth
An overgrowth of the gingival tissue
To dissolve

4. If Palate not fused
Two vertical extensions of the mandible
Acts as anchors between the alveolar bone and the tooth
Teeth will not erupt in proper position
Triangular space in the gingival direction when two adjacent teeth are in contact

5. Labial
Two cortical bone plates that come together between each tooth
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids
Outside surface Which is towards the lips
Small head - low nasal bridge - thin upper lip - small mandible

6. Palatine Rugae
The ridges that run horizontally across the hard palate behind the incisive papilla
A rounded area beyond the last posterior maxillary tooth
Cheek bones--the most breakable bone in the body
Forms the remaining 2/3 of the hard and soft palate uvula

7. How many teeth are in the permanent set of teeth?
The cornerstone of the mouth
32
Rounded depression on a tooth
Found only in multi-rooted teeth and resists rotational forces

8. What is the smallest tooth in dentition?
More common in girls--the failure of the palatal shelves to fuse with the primary palate (1 in 2500 births)
Mandibular central incisors
A raised area of tissue laying behind the maxillary central incisors on the hard palate
Clear fluid secreted by the salivary and mucous glands throughout the mouth

9. Middle Superior Alveolar Nerve
Separates the developing oral cavities from the nasal cavities
Where the ramus meets the body of the mandible on the outside border
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids
Drains the maxiallary artery and superficial temporal arteries

10. Occlusal
Vertical groove on the midline of the upper lip
Wearing away of the incisal or occlusal surfaces of the tooth
Outside surface Which is towards the lips
Pulverizing or chewing surface

11. Pulpitis
When the tissue becomes inflamed
Moves the head backward and laterally
Circle and tighten the gingival margin around the neck of the tooth
Creates the wall of the dentinal tubule

12. Interdental Ligament Group
Clear fluid secreted by the salivary and mucous glands throughout the mouth
Resist rotational forces and hold teeth in inter-proximal contact
Forms the bulk of the tooth
Fifth cusp located on the mesial surface lingual surface of maxillary first molars

13. Labial Commissures
Functions the same as the alveolar cfg; originate in alveolar bone
Cluster of tissue that manufactures and secrets fluid
Corners of the mouth
The teeth located at the back of the mouth

14. Convects
Triferacated
Formed by the uniting of lobes during development of crown
Elevated are of enamel that forms the Mesial and distal borders
Curve outward

15. Pit
The tip of the chin
Place where the groove comes together or fissures cross
Folds of tissue that extend horizontally from the uvula to the base of the tongue
Maxillary first molar

16. Odontal Fiber Groups
Allow flexibility during mastication - speech
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein
Cells develop into different tissues
The crown of the tooth that is nearest the incisal edge near the anterior tooth

17. Caruncle
Fleshy elevation under the tongue
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone
The fixed attachment of a muscle
6 years old

18. Cervical Third
The area on the crown of the tooth that is nearest the gingival
6 months/3years
Middle line of the teeth
Found near the cementoenamel junction

19. Interdental Gingiva
Small yellowish glands on the labial mucosa
Function to resist rotational forces and tilting
An extension of an unattached gingiva and the tooth
Molaris meaning millstone

20. Mylohyoid Nerve Branch
Begin at the caruncles on either side of the frenum and run backward to the base of the tongue
Teeth after cuspids
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle
10 days

21. Soft Palate
Drains the superficial veins of the face and neck into the subclavian vein
A faint line going from the ala of the nose to the corner of the mouth
Week 11
Covers muscle tissue in the posterior portion of the palate

22. Mixed Dentition
A period of both primary teeth and permeant teeth are in the dentition
Narrow long enamel tuft
Outside surface Which is towards the cheek - on posterior teeth
Forms into dentin - cementum and pulp of the teeth

23. Secondary Dentin
Small grooves noted on some teeth
Forms after the completion of the apical foramen
Study of prenatal growth and the developing process of an individual
Convex area on the lingual surface near gingiva

24. Primary Dentin
Outside surface Which is towards the lips
1500 millimeters
Drains the superficial veins of the face and neck into the subclavian vein
Forms the bulk of the tooth

25. Mandibular Foramen
A concave area where two bones of the mandible are fused in the center of the mandible on the external surface
20
Rounded depression on a tooth
Located on the inside of the body of the ramus

26. Embryology
When cells rapidly increase in number
Of or pertaining to area surrounding naval cavity
Retracts or depresses the tongue
Study of prenatal growth and the developing process of an individual

27. Infraorbital Foramen
The outer edge of the nostril
Convex area on the lingual surface near gingiva
Creates the wall of the dentinal tubule
Opening in the mouth below the orbit on the maxillary bone

28. Cementoblast
The slightly raised line extending down the middle of the hard palate
Skeletal or soft tissue structures used as reference points in describing locations of anatomical structures or taking measurements
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
Cells that form cementum

29. Apposition
Distends the ramus - enters the mandibular foramen and bifurcates around the first premolar tooth to form the incisive and the mental arteries
Intervates the anterior maxillary sinus - gingiva - cuspids - laterals - and central incisors
Calcium salts are deposited into formed tooth
Conception thru the first two weeks

30. Oblique Fiber Group
Bony projection found on the bottom border of the temporal bone
Portion of the lips that are red
Resists intrusive forces that try to push the tooth inwards
Platysma - trapezius - sternocleidomastoid

31. What is origin and What is insertion?
Canal or passage for fluid
A bat shaped bone which forms the anterior portion of the skull
Origin - fixed point - insertion - movable point
The tip of the chin

32. Cervical line
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids
Shaping the tongue during speech - mastication and swallowing
Buccal - lingual - and inferior alveolar
Divides the crown and the root

33. What are the 4 muscles of the floor of the mouth?
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface
4/5 cusps/ 3 roots
Digstric - Mylohyoid - stylohyoid - geniohyoid
The space between the unattached gingiva and the tooth

34. What teeth do the deciduous (baby) tooth not include?
The teeth located at the back of the mouth
No bicuspids/ no 3rd molars
Developmental segment of a tooth
Scroll like bones outside the nasal cavaties

35. Mandibular Artery
Demonstrates a disturbance in the body metabolism
Located behind the ramus of the mandible and branches into five arteries
Where the ectoderm layer matures into the enamel
Enamel forming cells

36. Anterior Tonsillar Pillar
Cheek bones--the most breakable bone in the body
Separates the developing oral cavities from the nasal cavities
A rounded area beyond the last posterior maxillary tooth
Folds of tissue that extend horizontally from the uvula to the base of the tongue

37. Enamel Spindle
Short tubules that seem to crossover to the enamel
Origin of the tooth
Tooth emerges from gum tissue and becomes visible
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

38. Gingival Groove
Responsible for laying down the enamel matrix into place
A period of both primary teeth and permeant teeth are in the dentition
The line of demarcation between the attached gingiva and the marginal gingiva
Pulverizing or chewing surface

39. Mesial
Outside surface Which is towards the lips
Surface towards the midline
Follows the length of the body of the mandible past the last tooth and up to the ramus
Narrow long enamel tuft

40. Occlusion third
Draws the hyoid bone superiorly and posteriorly and stabilizes it
Occlusal surface of the posterior tooth
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx
Pointed or rounded mounds on the crown of the tooth

41. Enamel Tufts
Cells develop into different tissues
Folds of tissue to the the lingual veins
Oval structures that are located on the dorsal surface of the tongue
Small dark brushes

42. Dentinal Hypersensitivity
Assists in elevating the chin
The inner surface of the cheeks
An extension of an unattached gingiva and the tooth
When the dentin is exposed

43. Internal Oblique Ridge
Follows the inside of the ramus and the body of the mandible
Narrow long enamel tuft
Retracts the tongue and raises the tip of the tongue
Responsible for laying down the enamel matrix into place

44. Histology
The study of the microscopic structure and functions of tissues
Curve outward
More common in girls--the failure of the palatal shelves to fuse with the primary palate (1 in 2500 births)
Indented

45. Buccal Mucosa
Place where the groove comes together or fissures cross
The inner surface of the cheeks
Cells From which connective tissue evolve
Retracts or depresses the tongue

46. Mandible Arch
Lower arch of the teeth
Hinge motion and gliding movement
Third tooth from the midline
Disk that acts like a cushion between the temporal bone and the condyloid process

47. Concave
Smaller - enamel thicker - pulp chamber is larger is larger - bifurcation wider
Platysma - trapezius - sternocleidomastoid
2 small raised folds of tissue where the lingual frenum attaches
Indented

48. 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
Separates the developing oral cavities from the nasal cavities
Supplies blood to the roots and periodontal ligaments of the molars and premolars
Located in a depressed area between the pillars

49. Marginal Ridges
Scroll like bones outside the nasal cavaties
Retracts the tongue and raises the tip of the tongue
Cells that form dentin
Elevated are of enamel that forms the Mesial and distal borders

50. Histo Differentiation
Retracts the tongue and raises the tip of the tongue
Distends the ramus - enters the mandibular foramen and bifurcates around the first premolar tooth to form the incisive and the mental arteries
Separates the developing oral cavities from the nasal cavities
Cells develop into different tissues