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Dental Assisting: Head And Neck Anatomy

Subjects : health-sciences, dentistry

Instructions:

Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can study here.
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. Mental Nerve Branch
Three bulges on the incisal edge
Largest division of the trigeminal nerve
The study of the microscopic structure and functions of tissues
Forms the bulk of the tooth

2. Pit
Retracts or depresses the tongue
Study of prenatal growth and the developing process of an individual
Appears to be loosely attached - covering the alveolar bone.
Place where the groove comes together or fissures cross

3. What ligament is retained the longest during periodontal disease?
Portion of the lips that are red
Three bulges on the incisal edge
Supplies blood to the brain and the eyes
Interdental ligament

4. TMJ bones are bathed In what solution?
Full deep rich sound in nasal cavity
Divides the crown and the root
Synovial fluid
Raised vertical folds of tissue on the lateral border of the tongue

5. Contour Lines of Owen
Demonstrates a disturbance in the body metabolism
12 years
Respiratory system - digestive system and glandular organs
Where the ramus meets the body of the mandible on the outside border

6. Calcification
Retracts the tongue and raises the tip of the tongue
Ligaments and muscles of mastication
Layers of tooth tissue become calcified
Folds of tissue to the the lingual veins

7. What are the characteristics of permanent teeth?
Enamel is thinner - pulp chamber is smaller -
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip
Largest division of the trigeminal nerve
Wearing away of the incisal or occlusal surfaces of the tooth

8. Buccal
Drains the facial structures beginning near the eye and descending toward the mandible
Third tooth from the midline
Where the ectoderm layer matures into the enamel
Outside surface Which is towards the cheek - on posterior teeth

9. Lingual Nerve Branch
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
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip
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
Place where the groove comes together or fissures cross

10. Anomalies
The fixed attachment of a muscle
Extreme variations from the norm
(free gingiva) surrounds the teeth
Place where the groove comes together or fissures cross

11. Mesenchyme Tissue
Convex area on the lingual surface near gingiva
Primary embryonic mesoderm layer that develops during the morpho differentiation period
Pulls the hyoid bone and the tongue anteriorly
Oval structures that are located on the dorsal surface of the tongue

12. Oblique Fiber Group
Respiratory system - digestive system and glandular organs
Small bony projections surrounding the lingual foramen
Resists intrusive forces that try to push the tooth inwards
Found near the cementoenamel junction

13. What is the longest tooth in the mandibular arch?
6 months/3years
Ligaments and muscles of mastication
Extends from the medial corner of the eye to the nasal cavity
The mandibular first premolar

14. What are the 4 extrinsic muscles of the tongue
The connective tissue of the marginal gingiva
Smaller branch that ennervates the soft palate uvula and tonsils
Genioglossus - hyoglossus - styloglossus - palatoglossus
The moveable attachment of the muscle

15. What is the latin word for molar?
Contains six branches that supply blood to the pharynx muscles - soft palate tonsils - the posterior of the tongue - sub mandibular gland - muscles of the face - nasal septom - nose and the eyelids
Molaris meaning millstone
Lower arch of the teeth
Small dark brushes

16. Alveolus
Fleshy elevation under the tongue
A duct that empties into the mouth thru the parotid papilla - Parotid gland goes with Stensen's duct
Folds of tissue that extend horizontally from the uvula to the base of the tongue
Bone that surrounds the root of the tooth

17. What is the smallest tooth in dentition?
Occurs in unusual ways and distorted crowns may appear
A junction or center of veins that directly or indirectly drain a vast area
Indented
Mandibular central incisors

18. Xerostomia
Supplies blood to the roots and periodontal ligaments of the molars and premolars
Calcified masses of dentin
Excess dryness of the mouth
Allow flexibility during mastication - speech

19. Stippled
Quarters of the teeth
Supplies blood to the roots and periodontal ligaments of the molars and premolars
When the tissue becomes inflamed
Healthy gingival tissue with an orange texture

20. Odontal Fiber Groups
Bone that surrounds the root of the tooth
An enclosed area that matures into dentin - cementum and pulp
Origin of the tooth
Allow flexibility during mastication - speech

21. Maxillary Sinus
The space between the unattached gingiva and the tooth
The corners of the mouth where the top and bottom lip meet
Teeth after cuspids
Forms a large cavity above the roots of the maxillary molars

22. What is Ankyloglossia and who can treat it / What is the treatment called?
Platysma - trapezius - sternocleidomastoid
Opening in the mouth below the orbit on the maxillary bone
A condition where the lower frenum attachment is very short/DDS/frenectomy
Contains six branches that supply blood to the pharynx muscles - soft palate tonsils - the posterior of the tongue - sub mandibular gland - muscles of the face - nasal septom - nose and the eyelids

23. Function of Trapezius
Moves the head backward and laterally
Cheek bones--the most breakable bone in the body
32
Drains the superficial veins of the face and neck into the subclavian vein

24. Fordyce's Spots
A bony plate covered with keratinized tissue located in the anterior portion of the palate
The layer of dentin that surrounds the pulp
Molaris meaning millstone
Small yellowish glands on the labial mucosa

25. Vestibule Fornix
Forms the bulk of the tooth
4th week
The deepest point of the vestibule
Cheek bones--the most breakable bone in the body

26. Zygomatic nerve
Two
Innervates the orbicular oculi - the area around the eye - and the area around and behind the zygomatic arch
Substances between cells
Quarters of the teeth

27. What are the largest and strongest of the mandibular teeth
The mandibular molars
Intervates the anterior maxillary sinus - gingiva - cuspids - laterals - and central incisors
Small head - low nasal bridge - thin upper lip - small mandible
An enclosed area that matures into dentin - cementum and pulp

28. Dentinal Fluid
Small dark brushes
Contains six branches that supply blood to the pharynx muscles - soft palate tonsils - the posterior of the tongue - sub mandibular gland - muscles of the face - nasal septom - nose and the eyelids
Tissue fluid surrounding the cell membrane of the odontoblast
20

29. When do oral and nasal cavity separate and palate develop?
Week 12
6 months/3years
A raised white line that runs parallel to where the teeth meet on the buccal mucosa
Wearing away of the incisal or occlusal surfaces of the tooth

30. If Palate not fused
Cut - tear - and grind food
H20 - mucin - organic salts and digestive enzymes
Teeth after cuspids
Teeth will not erupt in proper position

31. Neonatal line
The inner surface of the lips
Formed by the uniting of lobes during development of crown
Extreme variations from the norm
Incremental line indicating trauma of birth

32. What are the 4 taste senses and where are they located?
Scroll like bones outside the nasal cavaties
The portion of the tooth that meets the gingiva
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue
10 days

33. Cyto differentiation
Small raised projections where taste buds are located
Exits the mandibular canal at the mental foramen and supplies the chin and lower lip
The development of different cells
Begin at the caruncles on either side of the frenum and run backward to the base of the tongue

34. Nasal-Labial Groove
Biting edge of the teeth
A faint line going from the ala of the nose to the corner of the mouth
4th week
2 small raised folds of tissue where the lingual frenum attaches

35. Perikymata
Small grooves noted on some teeth
Cluster of tissue that manufactures and secrets fluid
Fifth cusp located on the mesial surface lingual surface of maxillary first molars
Narrow long enamel tuft

36. Gingival Groove
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars
The crown of the tooth that is nearest the incisal edge near the anterior tooth
The line of demarcation between the attached gingiva and the marginal gingiva
Assist in depressing the mandible and elevating the tongue

37. Cemental Spurs
Forms a large cavity above the roots of the maxillary molars
Found near the cementoenamel junction
Retracts the tongue and raises the tip of the tongue
Follows the length of the body of the mandible past the last tooth and up to the ramus

38. Gingiva
Composed of mucosa and surrounds the necks of the teeth
Canal or passage for fluid
Small bony projections surrounding the lingual foramen
Pulls the hyoid bone and the tongue anteriorly

39. Periodontal Ligaments
Mildest form of cleft palate
Causes a thickening of the cementum around the apex
Formed by the fibroblast cells and secures the tooth in the socket
A raised area of tissue laying behind the maxillary central incisors on the hard palate

40. Maxillary vein
Drains the Pterygoid plexus of the veins
Formed by the fibroblast cells and secures the tooth in the socket
Inside surface Which is towards the tongue - on anterior teeth
The teeth located at the back of the mouth

41. Stomedeum
Slight ridges on the cervical third of certain teeth that extend mesiodistally
Supplies blood to the roots and periodontal ligaments of the molars and premolars
Triferacated
Primitive mouth

42. Lingual Veins
Drains the maxiallary artery and superficial temporal arteries
Occlusal surface of the posterior tooth
Mandibular central incisors
Bluish veins that run the length of the tongue

43. Glenoid Fossa
1500 millimeters
The outer edge of the nostril
The first predentin that is formed and matures within the tube
Oval depression of temporal bone in condyloid process

44. Sublingual Sulcus
A horseshoe shaped groove that follow the curve of the dental arch
Skeletal or soft tissue structures used as reference points in describing locations of anatomical structures or taking measurements
Constricts the nasopharyngeal passage and elevates the larynx
Indented

45. Cervical line
Divides the crown and the root
Tissue fluid surrounding the cell membrane of the odontoblast
Scroll like bones outside the nasal cavaties
Looking at the border of the tongue

46. Vestibule
A pocket formed by the soft tissue of cheeks and gingiva
The area on the crown of the tooth that is nearest the gingival
Digstric - Mylohyoid - stylohyoid - geniohyoid
20

47. Frenum
Maxillary third molar
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip
Assists in elevating the chin
The slightly raised line extending down the middle of the hard palate

48. What kind of root does the maxillary first molar have?
Folds of tissue that extend horizontally from the uvula to the base of the tongue
Triferacated
Function to resist rotational forces and tilting
Small linear depression

49. Interdental Gingiva
Contains six branches that supply blood to the pharynx muscles - soft palate tonsils - the posterior of the tongue - sub mandibular gland - muscles of the face - nasal septom - nose and the eyelids
Resists intrusive forces that try to push the tooth inwards
An extension of an unattached gingiva and the tooth
Supplies blood to the roots and periodontal ligaments of the interior teeth

50. Supplemental Groove
Retracts the tongue and raises the tip of the tongue
Pointed or rounded mounds on the crown of the tooth
Radiates from the developmental groove
Found only in multi-rooted teeth and resists rotational forces