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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. What teeth do the deciduous (baby) tooth not include?
Pulls the hyoid bone and the tongue anteriorly
No bicuspids/ no 3rd molars
Located behind the ramus of the mandible and branches into five arteries
Cells develop into different tissues

2. Vermilion Zone
An enclosed area that matures into dentin - cementum and pulp
Portion of the lips that are red
Retracts or depresses the tongue
Supplies blood to the roots and periodontal ligaments of the molars and premolars

3. Tubercle of the Lip
A small projection in the middle of the upper lip
Retracts the tongue and raises the tip of the tongue
An overgrowth of the gingival tissue
Extends from the medial corner of the eye to the nasal cavity

4. Embryology
Primary and permanent
Trigeminal - facial - glossopharyngeal - hypoglossal
Study of prenatal growth and the developing process of an individual
A triangular area located behind the last molar

5. What is the function of the buccle nerve branch?
The teeth located at the back of the mouth
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars
Oval structures that are located on the dorsal surface of the tongue
Ligaments and muscles of mastication

6. External Auditory Meatus
Function to resist rotational forces and tilting
Hinge motion and gliding movement
Opening for the ear
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

7. Mandibular Artery
Fifth cusp located on the mesial surface lingual surface of maxillary first molars
Small dark brushes
Located behind the ramus of the mandible and branches into five arteries
Interdental ligament

8. Dentinal Tubules
Tubules that pass through the entire surface of the dentin
The inner surface of the cheeks
A raised white line that runs parallel to where the teeth meet on the buccal mucosa
Depresses the tongue

9. Buckle groove
Constricts the nasopharyngeal passage and elevates the larynx
Interdental ligament
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth
A horseshoe shaped groove that follow the curve of the dental arch

10. Filiform Papillae
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue
To dissolve
Assists in elevating the chin
Small curved lines that run parellel to the CEJ

11. Incisive Nerve branch
Peg shaped crown with a smooth surface
Moves the head backward and laterally
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine
Intervating the anterior teeth and the labial gingiva

12. Interradical Fiber Group
A dense tissue covered with mucous membrane that can withstand chewing
Small curved lines that run parellel to the CEJ
Found only in multi-rooted teeth and resists rotational forces
Dentin found between the tubules

13. Embrasure
Hinge motion and gliding movement
Opening for the ear
Triangular space in the gingival direction when two adjacent teeth are in contact
A small projection in the middle of the upper lip

14. Landmarks
Study of the structure and form of the teeth
Drains the superficial veins of the face and neck into the subclavian vein
Skeletal or soft tissue structures used as reference points in describing locations of anatomical structures or taking measurements
Elevated are of enamel that forms the Mesial and distal borders

15. Contact Area
Where the proximal sides of two teeth come together and touch
Origin of the tooth
Supplies blood to the temporal muscle - masseter muscle - pterygoid muscle and buccanator
Formed by the fibroblast cells and secures the tooth in the socket

16. Attached Gingiva
Orbicularis oris - buccinator - mentalis - zygomatic major
Extends from the mucogingival junction to the gingival groove
Tissue covering the alveolar processes
Peg shaped crown with a smooth surface

17. Articular Disc
Small grooves noted on some teeth
Set of arches found farther in the back of the throat
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
Also known as meniscus it is a dense fibrous connective tissue that is thicker at the ends and attached to the condyle

18. Groove
Small linear depression
A raised white line that runs parallel to where the teeth meet on the buccal mucosa
Chewing and swallowing food
A projection that extends off the back of the soft palate

19. Function of mylohyoid
Excess dryness of the mouth
Rounded depression on a tooth
The space between the unattached gingiva and the tooth
Assist in depressing the mandible and elevating the tongue

20. Histology
Portion of the lips that are red
Vestibule - vestibule fornix - labial mucosa - buccal mucosa - parotid papilla - Stenson's duct - linea alba - Fordyce's spots - alveolar mucosa - gingiva - labial frenum - buccal frenum
The study of the microscopic structure and functions of tissues
Substances between cells

21. Incisal Edge
Biting edge of the teeth
Teeth will not erupt in proper position
Small bony projections surrounding the lingual foramen
The tip of the chin

22. Pterygoid plexus of the veins
Mucosa that covers the alveolar bone
Bifurcated/ 5 cusps
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle
A junction or center of veins that directly or indirectly drain a vast area

23. Labial-Mental Groove
Divides the crown and the root
The fixed attachment of a muscle
Resists intrusive forces that try to push the tooth inwards
The groove below the lower lips that separates the lips from the chin

24. Dentinal Hypersensitivity
Bi-cuspids
Convex area on the lingual surface near gingiva
When the dentin is exposed
Pulverizing or chewing surface

25. Tome's process
Set of arches found farther in the back of the throat
Sharp projection on the under surface of the temporal bone
Responsible for laying down the enamel matrix into place
A rounded area beyond the last posterior maxillary tooth

26. Philtrum
A pocket formed by the soft tissue of cheeks and gingiva
A shallow v-shaped depression located below the bottom of the nose and above the lips
Raised vertical folds of tissue on the lateral border of the tongue
A bony plate covered with keratinized tissue located in the anterior portion of the palate

27. What are the extrinsic muscles of the tongue responsible for?
Assist in the movement and functioning of the tongue
A concave area where two bones of the mandible are fused in the center of the mandible on the external surface
Interdental ligament
Middle two teeth in the mouth

28. Mandibular Foramen
Located on the inside of the body of the ramus
Supplies blood to the roots and periodontal ligaments of the interior teeth
Function to resist rotational forces and tilting
An overgrowth of the gingival tissue

29. Facial Vein
Arteries supplying blood to most of the head and the neck
Drains the facial structures beginning near the eye and descending toward the mandible
Small dark brushes
The inner surface of the cheeks

30. What is another name for premolars?
Portion of the lips that are red
Bi-cuspids
Secrete saliva to assist in process of digestion
Mastication - aids in speech - influence facial structure - chewing surfaces

31. External Oblique Ridge
The connective tissue of the marginal gingiva
Follows the length of the body of the mandible past the last tooth and up to the ramus
Middle two teeth in the mouth
Circle and tighten the gingival margin around the neck of the tooth

32. Dentogingival Fiber Groups
Quarters of the teeth
Act to maintain the gingival integrity of the marginal gingiva
Cheek bones--the most breakable bone in the body
The ridges that run horizontally across the hard palate behind the incisive papilla

33. Which molar is the wisdom tooth
A small projection in the middle of the upper lip
Surface towards the midline
Maxillary third molar
Assist in depressing the mandible and elevating the tongue

34. Cleft Lip
Small bony projections surrounding the lingual foramen
Anterior to the ethmoid bone and part of the orbit (corners of the eye)
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue
Separation of the upper lip ( 1 of 1000 live births)

35. Alveolus
Arteries supplying blood to most of the head and the neck
Supplies blood to the brain and the eyes
A condition where the lower frenum attachment is very short/DDS/frenectomy
Bone that surrounds the root of the tooth

36. Cusps
Where the ectoderm layer matures into the enamel
Responsible for laying down the enamel matrix into place
Follows the length of the body of the mandible past the last tooth and up to the ramus
Pointed or rounded mounds on the crown of the tooth

37. Function of Sternocleidomastoid
Supplies blood to the roots and periodontal ligaments of the interior teeth
Assists in elevating the chin
Secrete saliva to assist in process of digestion
Band of fibrous tissue which attaches muscle to bone

38. Labial Mucosa
The inner surface of the lips
Two weeks thru 8th week
Draws the hyoid bone superiorly and posteriorly and stabilizes it
Canal or passage for fluid

39. lst and second premolars
Teeth after cuspids
2 small raised folds of tissue where the lingual frenum attaches
Short tubules that seem to crossover to the enamel
Largest division of the trigeminal nerve

40. Dentoperiosteal Fiber Groups
Allow flexibility during mastication - speech
Short tubules that seem to crossover to the enamel
Supportive fibers that anchor the tooth to the bone
Supplies blood to the face and oral cavity

41. Submandibular Glands

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42. When do the primary teeth begin erupting and are fully erupted?
The space between the unattached gingiva and the tooth
Innervates the orbicular oculi - the area around the eye - and the area around and behind the zygomatic arch
Cut - tear - and grind food
6 months/3years

43. What are the four main functions of deciduous teeth?
Pulverizing or chewing surface
Outside surface Which is towards the cheek - on posterior teeth
Curve outward
Mastication - aids in speech - influence facial structure - chewing surfaces

44. Agenesis
Extends from the mucogingival junction to the gingival groove
Orbicularis oris - buccinator - mentalis - zygomatic major
Occurs in unusual ways and distorted crowns may appear
Forms the bulk of the tooth

45. Imbracation Lines
Compact bone plate of the facial and lingual surfaces
Small curved lines that run parellel to the CEJ
Teeth will not erupt in proper position
Conception thru the first two weeks

46. Anomalies
Arteries supplying blood to most of the head and the neck
Extreme variations from the norm
Maxillary first molar
Enamel forming cells

47. Labial Commissures
Lower arch of the teeth
Excess bone in the middle of the palate
Chewing and swallowing food
Corners of the mouth

48. Epithelial Attachment
32
Bony projection found on the bottom border of the temporal bone
The gingiva in the floor of the gingival sulcus that attaches to the enamel
A condition where the lower frenum attachment is very short/DDS/frenectomy

49. Palantine Tonsils
Located in a depressed area between the pillars
Acts as anchors between the alveolar bone and the tooth
Shaping the tongue during speech - mastication and swallowing
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue

50. Cyto differentiation
Shed from the oral cavity
The development of different cells
Origin of the tooth
Small yellowish glands on the labial mucosa