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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. Convex
Dividing point of a multi-rooted tooth
Resulting from an imperfect union where the lobes come together
To bulge of curve outward
Constricts the nasopharyngeal passage and elevates the larynx

2. Uvula
Cells From which connective tissue evolve
Responsible for laying down the enamel matrix into place
Circle and tighten the gingival margin around the neck of the tooth
A projection that extends off the back of the soft palate

3. Function of mylohyoid
Assist in depressing the mandible and elevating the tongue
Duct located on the parotid papilla
Week 12
Small raised projections where taste buds are located

4. Xygote
The development of different forms
Full deep rich sound in nasal cavity
Study of prenatal growth and the developing process of an individual
Conception thru the first two weeks

5. Nasal-Labial Groove
Temporal muscles - masseter muscles - internal pterygoid muscles - external pterygoid muscles
A faint line going from the ala of the nose to the corner of the mouth
Depresses the tongue
Constricts the nasopharyngeal passage and elevates the larynx

6. Denticion
The ridges that run horizontally across the hard palate behind the incisive papilla
More common in girls--the failure of the palatal shelves to fuse with the primary palate (1 in 2500 births)
Natural teeth in position
Tributary of the facial vein which connects the facial vein to the pterygoid plexus of the veins

7. Stensens' Duct (aka Parotid)

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8. Maxillary Nerve Branch
Forms into the inner lining of the oral cavitiy and enamel of the teeth
Maxillary first molar
A bony plate covered with keratinized tissue located in the anterior portion of the palate
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx

9. Supplemental Groove
Drains the maxiallary artery and superficial temporal arteries
Radiates from the developmental groove
The inner surface of the cheeks
Formed by the fibroblast cells and secures the tooth in the socket

10. What is the latin word for molar?
The development of different tissues
Forms the bulk of the tooth
The disc becomes displaced
Molaris meaning millstone

11. Naso Palatine Nerve
Smaller - enamel thicker - pulp chamber is larger is larger - bifurcation wider
A condition where the lower frenum attachment is very short/DDS/frenectomy
Drains the facial structures beginning near the eye and descending toward the mandible
Extends interiorly from the pterygopalatine nerve and exits thru the incisive foramen

12. Mucosa
Lining covers inside of the oral cavity
Distends the ramus - enters the mandibular foramen and bifurcates around the first premolar tooth to form the incisive and the mental arteries
Compact bone plate of the facial and lingual surfaces
Drains the maxiallary artery and superficial temporal arteries

13. Labial Commissures
Mastication - aids in speech - influence facial structure - chewing surfaces
Skeletal or soft tissue structures used as reference points in describing locations of anatomical structures or taking measurements
Corners of the mouth
Fifth cusp located on the mesial surface lingual surface of maxillary first molars

14. Muscle Insertion
9 weeks thru birth
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue
The moveable attachment of the muscle
Wearing away of the incisal or occlusal surfaces of the tooth

15. Interradical Fiber Group
Covering over the enamel that is left over from the epithelium ameloblasts
Found only in multi-rooted teeth and resists rotational forces
Arteries supplying blood to most of the head and the neck
Appears to be loosely attached - covering the alveolar bone.

16. Histo Differentation
The development of different tissues
Act to maintain the gingival integrity of the marginal gingiva
The teeth located at the back of the mouth
Function to resist rotational forces and tilting

17. Fetus
The deepest point of the vestibule
9 weeks thru birth
The inner surface of the lips
Full deep rich sound in nasal cavity

18. Parotid Papilla
A flap of tissue on the on the buccal mucosa
Upper arch of the teeth
Aid in attaching the gingiva to the alveolar bone
A raised area of tissue laying behind the maxillary central incisors on the hard palate

19. Alveolar Crest
The moveable attachment of the muscle
Two cortical bone plates that come together between each tooth
Lining covers inside of the oral cavity
Substances between cells

20. Fungiform Papillae
When the tissue becomes inflamed
Circle and tighten the gingival margin around the neck of the tooth
Papillae that give the tongue the strawberry effect
Ligaments and muscles of mastication

21. Interdental Gingiva
Trigeminal nerve--because it ennervates the maxilla and the mandible
The tip of the chin
An extension of an unattached gingiva and the tooth
Oval depression of temporal bone in condyloid process

22. Lacrimal Bones
More common in girls--the failure of the palatal shelves to fuse with the primary palate (1 in 2500 births)
Anterior to the ethmoid bone and part of the orbit (corners of the eye)
6 months/3years
A concave area where two bones of the mandible are fused in the center of the mandible on the external surface

23. Sharpey's Fibers
Acts as anchors between the alveolar bone and the tooth
Platysma - trapezius - sternocleidomastoid
Occurs in unusual ways and distorted crowns may appear
Hinge motion and gliding movement

24. Lingual Frenum
Located in a depressed area between the pillars
A line of tissue that extends from the tongue to the floor of the mouth
The corners of the mouth where the top and bottom lip meet
A bony projection that separates each socket

25. What is the maxillary cuspid known as?
The crown of the tooth that is nearest the incisal edge near the anterior tooth
The cornerstone of the mouth
The largest of three openings located in the posterior region of the hard palate
Teeth will not erupt in proper position

26. Apical Fiber Group
Resists forces that try to pull the tooth outward
Occlusal surface of the posterior tooth
The connective tissue of the marginal gingiva
Dividing point of a multi-rooted tooth

27. Vestibule Fornix
The deepest point of the vestibule
Bony projection found on the bottom border of the temporal bone
What divides the tongue in half and runs from the base to the tip of the tongue
The ridges that run horizontally across the hard palate behind the incisive papilla

28. Which molar contains the cusp of Caribelli?
Smaller branch that ennervates the soft palate uvula and tonsils
When the surface of the teeth becomes grooved
Maxillary first molar
Resists forces that try to pull the tooth outward

29. Stippled
Greater - lesser - naso palatine nerves
Healthy gingival tissue with an orange texture
The portion of the tooth that meets the gingiva
Shed from the oral cavity

30. What are the three muscles of the neck?
Platysma - trapezius - sternocleidomastoid
Developmental segment of a tooth
The largest of the salivary glands which lie just below and in front of the ear
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone

31. What are the largest and strongest of the mandibular teeth
Of or pertaining to area surrounding naval cavity
The mandibular molars
Two vertical extensions of the mandible
Canal or passage for fluid

32. Gestational period
A dense tissue covered with mucous membrane that can withstand chewing
9 months (5 months ultrasound to tell sex)
To bulge of curve outward
A flap of tissue on the on the buccal mucosa

33. Cusp of Caribelli
Pulls the hyoid bone and the tongue anteriorly
Fifth cusp located on the mesial surface lingual surface of maxillary first molars
Teeth after cuspids
Intervating the anterior teeth and the labial gingiva

34. Cleft Palate
20
More common in girls--the failure of the palatal shelves to fuse with the primary palate (1 in 2500 births)
A shallow v-shaped depression located below the bottom of the nose and above the lips
Tissue covering the alveolar processes

35. Function of Palatoglossus
Elevates the posterior portion of the tongue and narrows the fauces
A projection that extends off the back of the soft palate
The deepest point of the vestibule
Where the ramus meets the body of the mandible on the outside border

36. Rod Core
The internal surface at the center of the mandible
Inner portion of the enamel rod
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
Supplies blood to the roots and periodontal ligaments of the interior teeth

37. Mixed Dentition
Intervating the anterior teeth and the labial gingiva
Convex area on the lingual surface near gingiva
H20 - mucin - organic salts and digestive enzymes
A period of both primary teeth and permeant teeth are in the dentition

38. Gingival Hyperplasia
The layer of dentin that surrounds the pulp
An overgrowth of the gingival tissue
Assists in elevating the chin
A flap of tissue on the on the buccal mucosa

39. Occlusion third
Canal or passage for fluid
Occlusal surface of the posterior tooth
Resulting from an imperfect union where the lobes come together
To lubricate the oral cavity and to moisten food

40. Cervical Third
Rounded depression on a tooth
Place where the groove comes together or fissures cross
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 area on the crown of the tooth that is nearest the gingival

41. Buckle groove
Lift the hyoid bone and assist in opening the mouth
Pulls the hyoid bone and the tongue anteriorly
Retracts or depresses the tongue
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth

42. How much saliva is produced daily?
Small grooves noted on some teeth
1500 millimeters
Forms the remaining 2/3 of the hard and soft palate uvula
Drains the facial structures beginning near the eye and descending toward the mandible

43. Vestibule
A pocket formed by the soft tissue of cheeks and gingiva
Trigeminal nerve--because it ennervates the maxilla and the mandible
4/5 cusps/ 3 roots
A rounded area beyond the last posterior maxillary tooth

44. Evanesce
To dissolve
A line of demarcation between the attached gingiva and alveolar mucosa
Maxillary third molar
Looking at the border of the tongue

45. Dental Arteries
Supplies blood to the roots and periodontal ligaments of the molars and premolars
Small linear depression
Composed of mucosa and surrounds the necks of the teeth
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth

46. Lingual Vein
Tissue fluid surrounding the cell membrane of the odontoblast
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
Convex area on the lingual surface near gingiva
Drains the floor of the mouth

47. Histo Differentiation
Largest of the branches of the external carotid artery; supplies facial structure
Cells develop into different tissues
Joined at the midline and are often referred to as the median Palatine suture
Causes a thickening of the cementum around the apex

48. How can you tell if someone has cancer by looking at the tongue?
Begin at the caruncles on either side of the frenum and run backward to the base of the tongue
The outer edge of the nostril
A duct that empties into the mouth thru the parotid papilla - Parotid gland goes with Stensen's duct
Looking at the border of the tongue

49. Hyoid Bone
Temporal muscles - masseter muscles - internal pterygoid muscles - external pterygoid muscles
Extends interiorly from the pterygopalatine nerve and exits thru the incisive foramen
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
Smaller - enamel thicker - pulp chamber is larger is larger - bifurcation wider

50. Cusps
Radiates from the developmental groove
Drains the facial structures beginning near the eye and descending toward the mandible
4/5 cusps/ 3 roots
Pointed or rounded mounds on the crown of the tooth

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Dental Assisting: Head And Neck Anatomy

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