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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. Incisive Arteries
Elevated area fo enamel that extends obliquely across the occlusal surface of the tooth
Outside surface Which is towards the cheek - on posterior teeth
Supplies blood to the roots and periodontal ligaments of the interior teeth
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

2. Histology
The study of the microscopic structure and functions of tissues
Rounded depression on a tooth
Hinge motion and gliding movement
A pocket formed by the soft tissue of cheeks and gingiva

3. Primary palate
The outer edge of the nostril
The development of different tissues
Portion of the lips that are red
Separates the developing oral cavities from the nasal cavities

4. Interdental Gingiva
Radiates from the developmental groove
Excess bone formations under the tongue on the alvellar bone
Lower arch of the teeth
An extension of an unattached gingiva and the tooth

5. Buckle groove
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth
Small linear depression
Cluster of tissue that manufactures and secrets fluid
Incremental line indicating trauma of birth

6. Ameloblast
Joined at the midline and are often referred to as the median Palatine suture
Enamel forming cells
Lower arch of the teeth
Mildest form of cleft palate

7. Which molar contains the cusp of Caribelli?
4 cusps/ bifurcated
Palatoglossus - palatopharyngeal
A rounded area beyond the last posterior maxillary tooth
Maxillary first molar

8. Mylohyoid Artery
Branches off the inferior alveolar artery before intering the mandibular canal
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
The mandibular molars
Largest papilla - mushroom shaped and are anterior to the sulcus terminalis in a row of 8 to 10

9. Vestibule Fornix
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Surface towards the midline
Lift the hyoid bone and assist in opening the mouth
The deepest point of the vestibule

10. Oblique Ridge
A junction or center of veins that directly or indirectly drain a vast area
Elevated area fo enamel that extends obliquely across the occlusal surface of the tooth
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Lower arch of the teeth

11. Torus
Study of prenatal growth and the developing process of an individual
Excess bone in the middle of the palate
Formed by the fibroblast cells and secures the tooth in the socket
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged

12. Articular Disc
Also known as meniscus it is a dense fibrous connective tissue that is thicker at the ends and attached to the condyle
Extends from the mucogingival junction to the gingival groove
When the tissue becomes inflamed
Drains the floor of the mouth

13. Imbracation Lines
Synovial fluid
Occurs in unusual ways and distorted crowns may appear
Ala of the nose - naso-labial groove - philtrum - vermilion border - vermilion zone - turbercle of the lip - labial commissures - labio-mental grooves
Small curved lines that run parellel to the CEJ

14. What are the four main functions of deciduous teeth?
Mildest form of cleft palate
Depresses the tongue
Small bony projections surrounding the lingual foramen
Mastication - aids in speech - influence facial structure - chewing surfaces

15. Marginal GIngiva
Linear elevation of the tooth
What divides the tongue in half and runs from the base to the tip of the tongue
(free gingiva) surrounds the teeth
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars

16. Labial
Two cortical bone plates that come together between each tooth
Circle and tighten the gingival margin around the neck of the tooth
Outside surface Which is towards the lips
Constricts the nasopharyngeal passage and elevates the larynx

17. Function of Stylohyoid
Outside surface Which is towards the cheek - on posterior teeth
Growth from the oral epithelium that gives rise to the tooth buds
Draws the hyoid bone superiorly and posteriorly and stabilizes it
An enclosed area that matures into dentin - cementum and pulp

18. Caruncle
Fleshy elevation under the tongue
Skeletal or soft tissue structures used as reference points in describing locations of anatomical structures or taking measurements
The internal surface at the center of the mandible
A duct that empties into the mouth thru the parotid papilla - Parotid gland goes with Stensen's duct

19. Lamina Dura
Forms the bulk of the tooth
Radiates from the developmental groove
A line that represents the alveolus bone lining the socket
Second teeth next to central incisors

20. Incisal third
A pocket formed by the soft tissue of cheeks and gingiva
The crown of the tooth that is nearest the incisal edge near the anterior tooth
Supportive fibers that anchor the tooth to the bone
Intervates the anterior maxillary sinus - gingiva - cuspids - laterals - and central incisors

21. Duct
Bi-cuspids
Demonstrates a disturbance in the body metabolism
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
Canal or passage for fluid

22. What are the two muscles of the soft palate?
Cut - tear - and grind food
What divides the tongue in half and runs from the base to the tip of the tongue
Palatoglossus - palatopharyngeal
Enamel is thinner - pulp chamber is smaller -

23. Fibroblasts
Covering over the enamel that is left over from the epithelium ameloblasts
Cells From which connective tissue evolve
The deepest point of the vestibule
Aid in attaching the gingiva to the alveolar bone

24. Styloid Process
Sharp projection on the under surface of the temporal bone
Causes a thickening of the cementum around the apex
The bone that separates the root on a tooth
When the dentin is exposed

25. Interradical Fiber Group
Chewing and swallowing food
Found only in multi-rooted teeth and resists rotational forces
Pulverizing or chewing surface
A bony projection that separates each socket

26. How much saliva do the salivary glands produce in 24 hours?
Mucosa that covers the alveolar bone
Compact bone plate of the facial and lingual surfaces
Small head - low nasal bridge - thin upper lip - small mandible
2 to 3 pints

27. Gland
Tubules that pass through the entire surface of the dentin
A condition where the lower frenum attachment is very short/DDS/frenectomy
Cluster of tissue that manufactures and secrets fluid
Exits the mandibular canal at the mental foramen and supplies the chin and lower lip

28. Mucogingival Junction
Shed from the oral cavity
10 days
A line of demarcation between the attached gingiva and alveolar mucosa
Quarters of the teeth

29. Secondary palate
Duct located on the parotid papilla
Forms the remaining 2/3 of the hard and soft palate uvula
Trigeminal nerve--because it ennervates the maxilla and the mandible
Middle line of the teeth

30. Gums
The development of different forms
Tissue covering the alveolar processes
Drains the maxiallary artery and superficial temporal arteries
Primary embryonic mesoderm layer that develops during the morpho differentiation period

31. Median Sulcus
Assists in elevating the chin
What divides the tongue in half and runs from the base to the tip of the tongue
Incremental lines around the layers of the enamel matrix
Natural teeth in position

32. Pulp horns
Bi-cuspids
Pointed elongations of the pulp
To dissolve
Mucosa that covers the alveolar bone

33. Tendon
The line of demarcation between the attached gingiva and the marginal gingiva
Cells From which connective tissue evolve
An enclosed area that matures into dentin - cementum and pulp
Band of fibrous tissue which attaches muscle to bone

34. Function of mylohyoid
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth
Cells From which connective tissue evolve
Enamel forming cells
Assist in depressing the mandible and elevating the tongue

35. Central Incisor
Small head - low nasal bridge - thin upper lip - small mandible
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein
Middle two teeth in the mouth
1500 millimeters

36. What is the most common problem with TMJ
Primary embryonic mesoderm layer that develops during the morpho differentiation period
Study of the structure and form of the teeth
Assist in the movement and functioning of the tongue
The disc becomes displaced

37. What teeth are removed if overcrowding occurs?
Bicuspids
Composed of mucosa and surrounds the necks of the teeth
Healthy gingival tissue with an orange texture
The tip of the chin

38. Fetal Alcohol Syndrome symptons
The corners of the mouth where the top and bottom lip meet
Peg shaped crown with a smooth surface
Small head - low nasal bridge - thin upper lip - small mandible
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39. Calcification
Acts as anchors between the alveolar bone and the tooth
Cells From which connective tissue evolve
Layers of tooth tissue become calcified
A small projection in the middle of the upper lip

40. Facial Artery
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
Respiratory system - digestive system and glandular organs
Sharp projection on the under surface of the temporal bone
Secrete saliva to assist in process of digestion

41. Circular Ligament Fiber Groups
Responsible for laying down the enamel matrix into place
A bony projection that separates each socket
Primitive mouth
Circle and tighten the gingival margin around the neck of the tooth

42. External Jugular Vein
Drains the superficial veins of the face and neck into the subclavian vein
Chewing and swallowing food
Act to maintain the gingival integrity of the marginal gingiva
Divides the crown and the root

43. Sublingual Caruncles
2 small raised folds of tissue where the lingual frenum attaches
Located on the inside of the body of the ramus
Separates the developing oral cavities from the nasal cavities
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth

44. When do oral and nasal cavity separate and palate develop?
The gingiva in the floor of the gingival sulcus that attaches to the enamel
Week 12
What divides the tongue in half and runs from the base to the tip of the tongue
Middle two teeth in the mouth

45. Function of Digastric
The teeth located at the back of the mouth
Forms into the inner lining of the oral cavitiy and enamel of the teeth
Sharp projection on the under surface of the temporal bone
Lift the hyoid bone and assist in opening the mouth

46. Dentogingival Fiber Groups
The development of different cells
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Dividing point of a multi-rooted tooth
Act to maintain the gingival integrity of the marginal gingiva

47. Periodontium
Natural teeth in position
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone
The moveable attachment of the muscle
A triangular area located behind the last molar

48. How many cusps/ roots do the 2/3rd mandibular molars have?
Outside surface Which is towards the lips
Fifth cusp located on the mesial surface lingual surface of maxillary first molars
4 cusps/ bifurcated
Oval structures that are located on the dorsal surface of the tongue

49. How many roots/ cusps does the mandibular first molar have?
Retracts or depresses the tongue
Bifurcated/ 5 cusps
Small head - low nasal bridge - thin upper lip - small mandible
Mastication - aids in speech - influence facial structure - chewing surfaces

50. Tome's process
Located behind the ramus of the mandible and branches into five arteries
Synovial fluid
Responsible for laying down the enamel matrix into place
Largest facial bone with two sections joined at the median suture