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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. Alveolar Mucosa
Causes a thickening of the cementum around the apex
Two smaller openings located behind the greater Palatine Foramen in the posterior region of the hard palate
Curve outward
Mucosa that covers the alveolar bone

2. Gingival Hyperplasia
A bony projection that separates each socket
Arteries supplying blood to most of the head and the neck
An overgrowth of the gingival tissue
Located in a depressed area between the pillars

3. Oblique Fiber Group
Portion of the lips that are red
Resists intrusive forces that try to push the tooth inwards
Portion of the root seen in the oral cavity
Healthy gingival tissue with an orange texture

4. Embryology
Pointed elongations of the pulp
Study of prenatal growth and the developing process of an individual
Intervating the anterior teeth and the labial gingiva
Respiratory system - digestive system and glandular organs

5. Tendon
Smaller - enamel thicker - pulp chamber is larger is larger - bifurcation wider
Healthy gingival tissue with an orange texture
Band of fibrous tissue which attaches muscle to bone
A junction or center of veins that directly or indirectly drain a vast area

6. What are the 4 extrinsic muscles of the tongue
Tissue covering the alveolar processes
Pointed elongations of the pulp
Genioglossus - hyoglossus - styloglossus - palatoglossus
The crown of the tooth that is nearest the incisal edge near the anterior tooth

7. Function of Digastric
Oval depression of temporal bone in condyloid process
Circle and tighten the gingival margin around the neck of the tooth
Portion covered with cementum
Lift the hyoid bone and assist in opening the mouth

8. Function of Styloglossus
Largest papilla - mushroom shaped and are anterior to the sulcus terminalis in a row of 8 to 10
Retracts the tongue and raises the tip of the tongue
Greater - lesser - naso palatine nerves
Divides the crown and the root

9. Naso Palatine Nerve
Greater - lesser - naso palatine nerves
A line that represents the alveolus bone lining the socket
Extends interiorly from the pterygopalatine nerve and exits thru the incisive foramen
Assists in elevating the chin

10. Palatine Rugae
The ridges that run horizontally across the hard palate behind the incisive papilla
Demonstrates a disturbance in the body metabolism
Composed of mucosa and surrounds the necks of the teeth
Teeth after cuspids

11. What teeth are removed if overcrowding occurs?
Bicuspids
Portion of the lips where the skin meets the vermilion zone
Digstric - Mylohyoid - stylohyoid - geniohyoid
Outside surface Which is towards the lips

12. Landmarks
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth
Curve outward
Oval depression of temporal bone in condyloid process
Skeletal or soft tissue structures used as reference points in describing locations of anatomical structures or taking measurements

13. Function of mylohyoid
Convex area on the lingual surface near gingiva
Assist in depressing the mandible and elevating the tongue
Occurs in unusual ways and distorted crowns may appear
Bluish veins that run the length of the tongue

14. Incisal third
The outer edge of the nostril
A bony projection that separates each socket
The crown of the tooth that is nearest the incisal edge near the anterior tooth
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth

15. Muscle origine
12 years
Triangular space in the gingival direction when two adjacent teeth are in contact
Forms into the inner lining of the oral cavitiy and enamel of the teeth
The fixed attachment of a muscle

16. Internal Oblique Ridge
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids
Follows the inside of the ramus and the body of the mandible
2 to 3 pints
The disc becomes displaced

17. Midline
When the tissue becomes inflamed
Middle line of the teeth
Small curved lines that run parellel to the CEJ
Formed by the uniting of lobes during development of crown

18. What are the characteristics of permanent teeth?
Enamel is thinner - pulp chamber is smaller -
Fleshy elevation under the tongue
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged
When the tissue becomes inflamed

19. Mantle Dentin
A line of demarcation between the attached gingiva and alveolar mucosa
Papillae that give the tongue the strawberry effect
Small dark brushes
The first predentin that is formed and matures within the tube

20. Stomedeum
Primitive mouth
Drains the floor of the mouth
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue
Folds of tissue to the the lingual veins

21. Interdental Gingiva
Union of two triangular ridges that produce a single ridge of elevation that cross the occlusal surface of posterior teeth
An extension of an unattached gingiva and the tooth
A raised area of tissue laying behind the maxillary central incisors on the hard palate
Where the ectoderm layer matures into the enamel

22. Anterior Tonsillar Pillar
Week 12
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars
Duct located on the parotid papilla
Folds of tissue that extend horizontally from the uvula to the base of the tongue

23. Circular Ligament Fiber Groups
Circle and tighten the gingival margin around the neck of the tooth
Band of fibrous tissue which attaches muscle to bone
Molars
What divides the tongue in half and runs from the base to the tip of the tongue

24. What is the most common problem with TMJ
6 years old
Composed of mucosa and surrounds the necks of the teeth
The disc becomes displaced
Linear elevation of the tooth

25. Palantine Tonsils
Surface away from the midline
Study of prenatal growth and the developing process of an individual
Located in a depressed area between the pillars
1500 millimeters

26. Imbrication lines
Slight ridges on the cervical third of certain teeth that extend mesiodistally
Creates the wall of the dentinal tubule
Narrow long enamel tuft
Conception thru the first two weeks

27. Osteoclasts
Portion of the lips that are red
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged
Bone that surrounds the root of the tooth
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip

28. Labial-Mental Groove
The groove below the lower lips that separates the lips from the chin
32
Stained growth rings in dentin
Forms a large cavity above the roots of the maxillary molars

29. Symphysis
Mildest form of cleft palate
Ligaments and muscles of mastication
Sharp projection on the under surface of the temporal bone
A concave area where two bones of the mandible are fused in the center of the mandible on the external surface

30. Secondary Dentin
Creates the wall of the dentinal tubule
Sharp projection on the under surface of the temporal bone
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface
Forms after the completion of the apical foramen

31. Nasal-Labial Groove
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids
A faint line going from the ala of the nose to the corner of the mouth
The mandibular molars
To lubricate the oral cavity and to moisten food

32. Lobes
Developmental segment of a tooth
A dense tissue covered with mucous membrane that can withstand chewing
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth
Scroll like bones outside the nasal cavaties

33. Morpho Differentiation
1500 millimeters
Peg shaped crown with a smooth surface
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
Forming organ takes shape and resembles the shape of a bell

34. Ameloblast
A flap of tissue on the on the buccal mucosa
To bulge of curve outward
The outer edge of the nostril
Enamel forming cells

35. Xerostomia
Excess dryness of the mouth
Conception thru the first two weeks
Portion covered with cementum
Branches off the inferior alveolar artery before intering the mandibular canal

36. Buccal Mucosa
9 weeks thru birth
The inner surface of the cheeks
Small linear depression
Opening in the mouth below the orbit on the maxillary bone

37. How many cusps/ roots do the maxillary first molars have?
4/5 cusps/ 3 roots
Healthy gingival tissue with an orange texture
Digstric - Mylohyoid - stylohyoid - geniohyoid
Two vertical extensions of the mandible

38. Function of Stylohyoid
Draws the hyoid bone superiorly and posteriorly and stabilizes it
Formed by the uniting of lobes during development of crown
Week 12
Small head - low nasal bridge - thin upper lip - small mandible

39. Imbracation Lines
Portion of the lips where the skin meets the vermilion zone
Middle line of the teeth
Small curved lines that run parellel to the CEJ
Respiratory system - digestive system and glandular organs

40. Concave
To bulge of curve outward
Tubules that pass through the entire surface of the dentin
Fifth cusp located on the mesial surface lingual surface of maxillary first molars
Indented

41. Primary palate
Origin of the tooth
Separates the developing oral cavities from the nasal cavities
Greater - lesser - naso palatine nerves
Indented

42. Stenson's Duct
Canal or passage for fluid
Assist in the movement and functioning of the tongue
Draws the hyoid bone superiorly and posteriorly and stabilizes it
Duct located on the parotid papilla

43. Apical Fiber Group
Located in a depressed area between the pillars
Resists forces that try to pull the tooth outward
Clear fluid secreted by the salivary and mucous glands throughout the mouth
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged

44. What is the latin word for molar?
Molaris meaning millstone
Pulverizing or chewing surface
Three cusps/ trifurcated
9 months (5 months ultrasound to tell sex)

45. Pulp horns
Pointed elongations of the pulp
Drains the floor of the mouth
Raised vertical folds of tissue on the lateral border of the tongue
Acts as anchors between the alveolar bone and the tooth

46. External Oblique Ridge
The inner surface of the lips
Follows the length of the body of the mandible past the last tooth and up to the ramus
Cells that form cementum
The gingiva in the floor of the gingival sulcus that attaches to the enamel

47. What is the largest cranial nerve and the most important to dental auxillaries and why?
Assist in the movement and functioning of the tongue
Retracts the tongue and raises the tip of the tongue
Trigeminal nerve--because it ennervates the maxilla and the mandible
Cut - tear - and grind food

48. Histo Differentiation
Found near the cementoenamel junction
Study of prenatal growth and the developing process of an individual
A concave area where two bones of the mandible are fused in the center of the mandible on the external surface
Cells develop into different tissues

49. Apposition
Calcium salts are deposited into formed tooth
Sharp projection on the under surface of the temporal bone
Study of prenatal growth and the developing process of an individual
Permeante teeth replace the primary teeth

50. Pterygoid Process
Two weeks thru 8th week
Shaping the tongue during speech - mastication and swallowing
Wings of the sphenoid bone
Radiates from the developmental groove