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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.
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. Pit
Also known as meniscus it is a dense fibrous connective tissue that is thicker at the ends and attached to the condyle
Primary embryonic mesoderm layer that develops during the morpho differentiation period
Composed of mucosa and surrounds the necks of the teeth
Place where the groove comes together or fissures cross

2. Lingual Nerve Branch
Layers of tooth tissue become calcified
Cells From which connective tissue evolve
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
Healthy gingival tissue with an orange texture

3. Imbritation Lines of Von Eboner
Upper arch of the teeth
The development of different forms
Stained growth rings in dentin
Tooth emerges from gum tissue and becomes visible

4. What are the two muscles of the soft palate?
Bi-cuspids
The deepest point of the vestibule
Palatoglossus - palatopharyngeal
Incremental line indicating trauma of birth

5. What are the three muscles of the neck?
Covers muscle tissue in the posterior portion of the palate
Buccal - lingual - and inferior alveolar
Platysma - trapezius - sternocleidomastoid
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged

6. Mantle Dentin
Assist in the movement and functioning of the tongue
Folds of tissue that extend horizontally from the uvula to the base of the tongue
The first predentin that is formed and matures within the tube
Distends the ramus - enters the mandibular foramen and bifurcates around the first premolar tooth to form the incisive and the mental arteries

7. What are the 4 cranial nerves that ennervate the face and oral cavity
Retracts or depresses the tongue
Drains the floor of the mouth
Supplies blood to the temporal muscle - masseter muscle - pterygoid muscle and buccanator
Trigeminal - facial - glossopharyngeal - hypoglossal

8. Pulpitis
Greater - lesser - naso palatine nerves
Lining covers inside of the oral cavity
When the tissue becomes inflamed
Lower arch of the teeth

9. Xygote
Largest papilla - mushroom shaped and are anterior to the sulcus terminalis in a row of 8 to 10
A rounded area beyond the last posterior maxillary tooth
When cells rapidly increase in number
Oval depression of temporal bone in condyloid process

10. Function of Trapezius
Scroll like bones outside the nasal cavaties
Chewing and swallowing food
Lower arch of the teeth
Moves the head backward and laterally

11. Gums
Week 12
Supplies blood to the temporal muscle - masseter muscle - pterygoid muscle and buccanator
Supplies blood to the face and oral cavity
Tissue covering the alveolar processes

12. Fibroblasts
Cells From which connective tissue evolve
Bi-cuspids
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
Indented

13. Internal Jugular Vein
Circle and tighten the gingival margin around the neck of the tooth
Biting edge of the teeth
Origin - fixed point - insertion - movable point
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein

14. Free Gingiva
The portion of the tooth that meets the gingiva
Dividing point of a multi-rooted tooth
Supplies blood to the temporal muscle - masseter muscle - pterygoid muscle and buccanator
Occurs in unusual ways and distorted crowns may appear

15. Incisive Papilla
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth
A raised area of tissue laying behind the maxillary central incisors on the hard palate
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone
Assists in elevating the chin

16. Duct
To lubricate the oral cavity and to moisten food
Compact bone plate of the facial and lingual surfaces
Stained growth rings in dentin
Canal or passage for fluid

17. Retromolar Area
Enamel forming cells
A triangular area located behind the last molar
Elevated area fo enamel that extends obliquely across the occlusal surface of the tooth
Located behind the ramus of the mandible and branches into five arteries

18. Taste Buds
Oval structures that are located on the dorsal surface of the tongue
More common in girls--the failure of the palatal shelves to fuse with the primary palate (1 in 2500 births)
Separation of the upper lip ( 1 of 1000 live births)
Radiates from the developmental groove

19. Philtrum
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth
Mandibular central incisors
Vertical groove on the midline of the upper lip
Cells that form cementum

20. How much saliva is produced daily?
1500 millimeters
A duct that empties into the mouth thru the parotid papilla - Parotid gland goes with Stensen's duct
Outside surface Which is towards the cheek - on posterior teeth
Healthy gingival tissue with an orange texture

21. Pterygoid plexus of the veins
A condition where the lower frenum attachment is very short/DDS/frenectomy
The space between the unattached gingiva and the tooth
A junction or center of veins that directly or indirectly drain a vast area
Located on the inside of the body of the ramus

22. Primary palate
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth
Separates the developing oral cavities from the nasal cavities
Week 12
Intervating the anterior teeth and the labial gingiva

23. Mandible Arch
Causes a thickening of the cementum around the apex
Elevated area fo enamel that extends obliquely across the occlusal surface of the tooth
Lower arch of the teeth
Cells that form cementum

24. Marginal GIngiva
Narrow long enamel tuft
Dividing point of a multi-rooted tooth
(free gingiva) surrounds the teeth
The tip of the chin

25. When do the tooth buds appear?
The development of different cells
Wings of the sphenoid bone
Week 11
Skeletal or soft tissue structures used as reference points in describing locations of anatomical structures or taking measurements

26. Function of Stylohyoid
2 to 3 pints
Draws the hyoid bone superiorly and posteriorly and stabilizes it
Portion covered with cementum
Cheek bones--the most breakable bone in the body

27. Pterygoid Process
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 internal surface at the center of the mandible
Wings of the sphenoid bone
Resists intrusive forces that try to push the tooth inwards

28. What are the 2 sets of teeth?
The largest of the salivary glands which lie just below and in front of the ear
Elevates the posterior portion of the tongue and narrows the fauces
Primary and permanent
Exits the mandibular canal at the mental foramen and supplies the chin and lower lip

29. What is the largest cranial nerve and the most important to dental auxillaries and why?
Trigeminal nerve--because it ennervates the maxilla and the mandible
Mandibular central incisors
Largest papilla - mushroom shaped and are anterior to the sulcus terminalis in a row of 8 to 10
Drains the superficial veins of the face and neck into the subclavian vein

30. Labial-Mental Groove
Convex area on the lingual surface near gingiva
Small bony projections surrounding the lingual foramen
The groove below the lower lips that separates the lips from the chin
Small dark brushes

31. Purpose of premolars
Supplies blood to the face and oral cavity
Used to pulverize food
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue

32. Dental Arteries
Supplies blood to the roots and periodontal ligaments of the molars and premolars
Set of arches found farther in the back of the throat
The deepest point of the vestibule
Folds of tissue that extend horizontally from the uvula to the base of the tongue

33. Function of Hyoglossus
No bicuspids/ no 3rd molars
The space between the unattached gingiva and the tooth
Depresses the tongue
Drains the maxiallary artery and superficial temporal arteries

34. What are the 3 branches of the mandibular nerve branch?
Buccal - lingual - and inferior alveolar
Vertical groove on the midline of the upper lip
Bi-cuspids
Primitive mouth

35. What are the extrinsic muscles of the tongue responsible for?
The area on the crown of the tooth that is nearest the gingival
Assist in the movement and functioning of the tongue
Looking at the border of the tongue
32

36. Posterior Tonsillar Pillar
Incremental line indicating trauma of birth
Set of arches found farther in the back of the throat
Responsible for laying down the enamel matrix into place
Bone that surrounds the root of the tooth

37. Cusps
Extends interiorly from the pterygopalatine nerve and exits thru the incisive foramen
A duct that empties into the mouth thru the parotid papilla - Parotid gland goes with Stensen's duct
Cells develop into different tissues
Pointed or rounded mounds on the crown of the tooth

38. Buckle groove
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth
The deepest point of the vestibule
6 months/3years
Supplies blood to the face and oral cavity

39. What are the only permeant teeth that are not succedaneous?
A period of both primary teeth and permeant teeth are in the dentition
Molars
Incremental line indicating trauma of birth
Outside surface Which is towards the lips

40. Xygote
Conception thru the first two weeks
Fleshy elevation under the tongue
Small yellowish glands on the labial mucosa
Triangular space in the gingival direction when two adjacent teeth are in contact

41. Which molar contains the cusp of Caribelli?
Maxillary first molar
Act to maintain the gingival integrity of the marginal gingiva
Curve outward
(free gingiva) surrounds the teeth

42. Resonance
What divides the tongue in half and runs from the base to the tip of the tongue
Fleshy elevation under the tongue
Portion of the lips where the skin meets the vermilion zone
Full deep rich sound in nasal cavity

43. Sulingual Folds
Synovial fluid
Indented
A bony projection that separates each socket
Begin at the caruncles on either side of the frenum and run backward to the base of the tongue

44. Lingual Vein
Primary and permanent
Synovial fluid
Drains the floor of the mouth
Circle and tighten the gingival margin around the neck of the tooth

45. Occlusion third
Occlusal surface of the posterior tooth
Incremental lines around the layers of the enamel matrix
Study of prenatal growth and the developing process of an individual
Triangular space in the gingival direction when two adjacent teeth are in contact

46. Incisal Edge
Biting edge of the teeth
Maxillary first molar
Supplies blood to the face and oral cavity
Mandibular central incisors

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

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48. Gland
Cheek bones--the most breakable bone in the body
Cluster of tissue that manufactures and secrets fluid
Bifurcated/ 5 cusps
Trigeminal - facial - glossopharyngeal - hypoglossal

49. Hypercementosis
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
Causes a thickening of the cementum around the apex
Inner portion of the enamel rod
Small raised projections where taste buds are located

50. What are the 3 branches of the pterygopalatine nerve branch?
Where the proximal sides of two teeth come together and touch
A condition where the lower frenum attachment is very short/DDS/frenectomy
Greater - lesser - naso palatine nerves
A pocket formed by the soft tissue of cheeks and gingiva