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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. Muscle origine
The fixed attachment of a muscle
Dentin found between the tubules
When the dentin is exposed
Triangular space in the gingival direction when two adjacent teeth are in contact

2. Function of Palatopharyngeal
Elevated are of enamel that forms the Mesial and distal borders
Cut - tear - and grind food
Constricts the nasopharyngeal passage and elevates the larynx
Folds of tissue to the the lingual veins

3. Palatine Raphe
4/5 cusps/ 3 roots
The slightly raised line extending down the middle of the hard palate
Small grooves noted on some teeth
Lift the hyoid bone and assist in opening the mouth

4. What are the two muscles of the soft palate?
Interdental ligament
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein
Palatoglossus - palatopharyngeal
Bicuspids

5. Pulpitis
Cells develop into different tissues
Creates the wall of the dentinal tubule
When the tissue becomes inflamed
Maxillary third molar

6. Enamel Dysplasia
An overgrowth of the gingival tissue
When the surface of the teeth becomes grooved
Dividing point of a multi-rooted tooth
Canal or passage for fluid

7. Cervical line
Divides the crown and the root
A pocket formed by the soft tissue of cheeks and gingiva
Band of fibrous tissue which attaches bone to bone
Indented

8. What are the 12 landmarks of the oral cavity?

9. How much saliva do the salivary glands produce in 24 hours?
2 to 3 pints
Synovial fluid
Week 11
Interdental ligament

10. Alveolar Crest Fiber Group
Function to resist rotational forces and tilting
Small linear depression
The largest of three openings located in the posterior region of the hard palate
Anterior to the ethmoid bone and part of the orbit (corners of the eye)

11. Posterior Teeth
Largest of the branches of the external carotid artery; supplies facial structure
Small linear depression
The teeth located at the back of the mouth
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth

12. Contact Area
Vertical groove on the midline of the upper lip
When cells rapidly increase in number
Where the proximal sides of two teeth come together and touch
Calcified masses of dentin

13. How many cusps/ roots do the maxillary first molars have?
Cheek bones--the most breakable bone in the body
4/5 cusps/ 3 roots
Largest of the branches of the external carotid artery; supplies facial structure
Function to resist rotational forces and tilting

14. Histo Differentiation
Cells develop into different tissues
The fixed attachment of a muscle
Slight ridges on the cervical third of certain teeth that extend mesiodistally
Ala of the nose - naso-labial groove - philtrum - vermilion border - vermilion zone - turbercle of the lip - labial commissures - labio-mental grooves

15. Primary Dentin
Third tooth from the midline
Supplies blood to the roots and periodontal ligaments of the molars and premolars
A bony projection that separates each socket
Forms the bulk of the tooth

16. Convects
Secrete saliva to assist in process of digestion
Conception thru the first two weeks
Curve outward
Bluish veins that run the length of the tongue

17. Secondary palate
Teeth after cuspids
Mildest form of cleft palate
A dense tissue covered with mucous membrane that can withstand chewing
Forms the remaining 2/3 of the hard and soft palate uvula

18. When do the tooth buds appear?
Used to pulverize food
Week 11
Largest division of the trigeminal nerve
Lift the hyoid bone and assist in opening the mouth

19. Lamina Dura
A line that represents the alveolus bone lining the socket
Resulting from an imperfect union where the lobes come together
The development of different forms
The smallest of the salivary glands located on the floor of the mouth which empty into the mouth thru either the ducts of Rivinus or Bartholin

20. Salivary Glands
Study of the structure and form of the teeth
Bone that surrounds the root of the tooth
2 to 3 pints
Secrete saliva to assist in process of digestion

21. Function of Sternocleidomastoid
Located behind the ramus of the mandible and branches into five arteries
Layers of tooth tissue become calcified
Assists in elevating the chin
Molars

22. Fetus
Inside of the maxillary teeth
Small raised projections where taste buds are located
9 weeks thru birth
Lower arch of the teeth

23. Cingulum
Cells develop into different tissues
The mandibular first premolar
Convex area on the lingual surface near gingiva
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein

24. Dental Arteries
Drains the facial structures beginning near the eye and descending toward the mandible
Supplies blood to the roots and periodontal ligaments of the molars and premolars
2 to 3 pints
Cells develop into different tissues

25. What is the smallest tooth in dentition?
Function to resist rotational forces and tilting
Located in a depressed area between the pillars
Bifurcated/ 5 cusps
Mandibular central incisors

26. Mixed Dentition
The crown of the tooth that is nearest the incisal edge near the anterior tooth
A period of both primary teeth and permeant teeth are in the dentition
Demonstrates a disturbance in the body metabolism
Forms the bulk of the tooth

27. Midline
Extends interiorly from the pterygopalatine nerve and exits thru the incisive foramen
Constricts the nasopharyngeal passage and elevates the larynx
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine
Middle line of the teeth

28. Dentinal Hypersensitivity
Demonstrates a disturbance in the body metabolism
Draws the hyoid bone superiorly and posteriorly and stabilizes it
Creates the wall of the dentinal tubule
When the dentin is exposed

29. Sulingual Folds
Begin at the caruncles on either side of the frenum and run backward to the base of the tongue
Pulls the hyoid bone and the tongue anteriorly
Duct located on the parotid papilla
Where the ramus meets the body of the mandible on the outside border

30. Mucogingival Junction
Causes a thickening of the cementum around the apex
A line of tissue that extends from the tongue to the floor of the mouth
Tissue fluid surrounding the cell membrane of the odontoblast
A line of demarcation between the attached gingiva and alveolar mucosa

31. How many cusps/ roots do the 2/3rd mandibular molars have?
When the surface of the teeth becomes grooved
4 cusps/ bifurcated
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein
Hinge motion and gliding movement

32. Cleft Uvula
Anterior to the ethmoid bone and part of the orbit (corners of the eye)
Quarters of the teeth
Mildest form of cleft palate
Fleshy elevation under the tongue

33. Function of Stylohyoid
Assist in the movement and functioning of the tongue
Dentin found between the tubules
The smallest of the salivary glands located on the floor of the mouth which empty into the mouth thru either the ducts of Rivinus or Bartholin
Draws the hyoid bone superiorly and posteriorly and stabilizes it

34. Alveolar Crest
Two cortical bone plates that come together between each tooth
Smaller branch that ennervates the soft palate uvula and tonsils
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein
2 small raised folds of tissue where the lingual frenum attaches

35. Articular Disc
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
Also known as meniscus it is a dense fibrous connective tissue that is thicker at the ends and attached to the condyle
A line of demarcation between the attached gingiva and alveolar mucosa
Primary embryonic mesoderm layer that develops during the morpho differentiation period

36. Calcification
Dentin found between the tubules
Upper arch of the teeth
Layers of tooth tissue become calcified
Synovial fluid

37. What is the longest tooth in the mandibular arch?
The mandibular first premolar
Respiratory system - digestive system and glandular organs
Outside surface Which is towards the lips
A line of tissue that extends from the tongue to the floor of the mouth

38. Which molar is the wisdom tooth
The corners of the mouth where the top and bottom lip meet
What divides the tongue in half and runs from the base to the tip of the tongue
Maxillary third molar
Intervates the anterior maxillary sinus - gingiva - cuspids - laterals - and central incisors

39. Imbrication lines
Tributary of the facial vein which connects the facial vein to the pterygoid plexus of the veins
Outside surface Which is towards the cheek - on posterior teeth
The teeth located at the back of the mouth
Slight ridges on the cervical third of certain teeth that extend mesiodistally

40. Mylohyoid Nerve Branch
The mandibular molars
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle
Oval structures that are located on the dorsal surface of the tongue
Occurs in unusual ways and distorted crowns may appear

41. Bud stage
Excess dryness of the mouth
Initiation of the tooth begins
Located behind the ramus of the mandible and branches into five arteries
Duct located on the parotid papilla

42. Dentoperiosteal Fiber Groups
Resist rotational forces and hold teeth in inter-proximal contact
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
The slightly raised line extending down the middle of the hard palate
Supportive fibers that anchor the tooth to the bone

43. Angle of the Mandible
Vestibule - vestibule fornix - labial mucosa - buccal mucosa - parotid papilla - Stenson's duct - linea alba - Fordyce's spots - alveolar mucosa - gingiva - labial frenum - buccal frenum
Curve outward
Where the ramus meets the body of the mandible on the outside border
Set of arches found farther in the back of the throat

44. What are the characteristics of permanent teeth?
Enamel is thinner - pulp chamber is smaller -
Cut - tear - and grind food
A junction or center of veins that directly or indirectly drain a vast area
Shaping the tongue during speech - mastication and swallowing

45. Incisive Papilla
A raised area of tissue laying behind the maxillary central incisors on the hard palate
Shaping the tongue during speech - mastication and swallowing
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip
Allow flexibility during mastication - speech

46. What are the 4 maxillary nerve branches?
Supplies blood to the roots and periodontal ligaments of the molars and premolars
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine
A shallow v-shaped depression located below the bottom of the nose and above the lips
Substances between cells

47. Develop Mental Groove
Chewing and swallowing food
Excess bone formations under the tongue on the alvellar bone
Formed by the uniting of lobes during development of crown
Where the ectoderm layer matures into the enamel

48. Resonance
Permeante teeth replace the primary teeth
Supplies blood to the roots and periodontal ligaments of the molars and premolars
Full deep rich sound in nasal cavity
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth

49. External Auditory Meatus
Opening for the ear
A condition where the lower frenum attachment is very short/DDS/frenectomy
Forms the bulk of the tooth
Tubules that pass through the entire surface of the dentin

50. Cleft Lip
Pointed elongations of the pulp
2 small raised folds of tissue where the lingual frenum attaches
Two
Separation of the upper lip ( 1 of 1000 live births)