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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. Which molar contains the cusp of Caribelli?
Maxillary first molar
Where the ectoderm layer matures into the enamel
Opening in the mouth below the orbit on the maxillary bone
6 months/3years

2. Sulingual Folds
Molaris meaning millstone
Begin at the caruncles on either side of the frenum and run backward to the base of the tongue
Fifth cusp located on the mesial surface lingual surface of maxillary first molars
Third tooth from the midline

3. How can you tell if someone has cancer by looking at the tongue?
Looking at the border of the tongue
Causes a thickening of the cementum around the apex
Extends from the mucogingival junction to the gingival groove
Responsible for laying down the enamel matrix into place

4. Articular Disc
2 to 3 pints
Also known as meniscus it is a dense fibrous connective tissue that is thicker at the ends and attached to the condyle
Excess bone in the middle of the palate
Mildest form of cleft palate

5. What are the 4 maxillary nerve branches?
Healthy gingival tissue with an orange texture
The cornerstone of the mouth
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine
20

6. Labial
The crown of the tooth that is nearest the incisal edge near the anterior tooth
Outside surface Which is towards the lips
Separation of the upper lip ( 1 of 1000 live births)
Drains the superficial veins of the face and neck into the subclavian vein

7. How much saliva do the salivary glands produce in 24 hours?
2 to 3 pints
Smaller branch that ennervates the soft palate uvula and tonsils
Forms into dentin - cementum and pulp of the teeth
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle

8. Vermilion Zone
4 cusps/ bifurcated
Portion of the lips that are red
Extends from the mucogingival junction to the gingival groove
A horseshoe shaped groove that follow the curve of the dental arch

9. Taste Buds
Of or pertaining to area surrounding naval cavity
6 months/3years
Oval structures that are located on the dorsal surface of the tongue
Largest of the branches of the external carotid artery; supplies facial structure

10. Mylohyoid Nerve Branch
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle
Allow flexibility during mastication - speech
Smaller branch that ennervates the soft palate uvula and tonsils
An enclosed area that matures into dentin - cementum and pulp

11. Ameloblast
Enamel forming cells
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 moveable attachment of the muscle
Incremental lines around the layers of the enamel matrix

12. Pterygoid Process
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine
Wings of the sphenoid bone
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein
Extreme variations from the norm

13. Philtrum
Primitive mouth
A shallow v-shaped depression located below the bottom of the nose and above the lips
Quarters of the teeth
Secrete saliva to assist in process of digestion

14. Develop Mental Groove
The development of different forms
Formed by the uniting of lobes during development of crown
Stained growth rings in dentin
Radiates from the developmental groove

15. Papilla
Small raised projections where taste buds are located
Smaller - enamel thicker - pulp chamber is larger is larger - bifurcation wider
The corners of the mouth where the top and bottom lip meet
Genioglossus - hyoglossus - styloglossus - palatoglossus

16. Embryo
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
Two weeks thru 8th week
Outside surface Which is towards the cheek - on posterior teeth
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone

17. Histo Differentation
Greater - lesser - naso palatine nerves
A junction or center of veins that directly or indirectly drain a vast area
The development of different tissues
Full deep rich sound in nasal cavity

18. Genial Tubercles
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
Small bony projections surrounding the lingual foramen
Located on the inside of the body of the ramus
Union of two triangular ridges that produce a single ridge of elevation that cross the occlusal surface of posterior teeth

19. Buccal Mucosa
Synovial fluid
The inner surface of the cheeks
Supplies blood to the roots and periodontal ligaments of the interior teeth
Oval depression of temporal bone in condyloid process

20. How much saliva is produced daily?
1500 millimeters
Supplies blood to the brain and the eyes
The bone that separates the root on a tooth
Band of fibrous tissue which attaches muscle to bone

21. Osteoclasts
Oval depression of temporal bone in condyloid process
Wearing away of the incisal or occlusal surfaces of the tooth
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged
Inner portion of the enamel rod

22. Cervical line
Divides the crown and the root
Joined at the midline and are often referred to as the median Palatine suture
Maxillary first molar
Located behind the ramus of the mandible and branches into five arteries

23. Cervical Third
The area on the crown of the tooth that is nearest the gingival
Act to maintain the gingival integrity of the marginal gingiva
Resists forces that try to pull the tooth outward
Two cortical bone plates that come together between each tooth

24. Apical Fiber Group
Resists forces that try to pull the tooth outward
Place where the groove comes together or fissures cross
The inner surface of the cheeks
When cells rapidly increase in number

25. Maxillary vein
Intervates the anterior maxillary sinus - gingiva - cuspids - laterals - and central incisors
Where the ramus meets the body of the mandible on the outside border
4/5 cusps/ 3 roots
Drains the Pterygoid plexus of the veins

26. Groove
A raised white line that runs parallel to where the teeth meet on the buccal mucosa
Mandibular central incisors
Small linear depression
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars

27. Incisive Papilla
Substances between cells
A raised area of tissue laying behind the maxillary central incisors on the hard palate
When cells rapidly increase in number
Layers of tooth tissue become calcified

28. Lingual
Study of the structure and form of the teeth
Skeletal or soft tissue structures used as reference points in describing locations of anatomical structures or taking measurements
Inside surface Which is towards the tongue - on anterior teeth
Follows the inside of the ramus and the body of the mandible

29. Styloid Process
Vertical groove on the midline of the upper lip
Natural teeth in position
Sharp projection on the under surface of the temporal bone
Drains the facial structures beginning near the eye and descending toward the mandible

30. Palatine Raphe
The inner surface of the cheeks
Pointed elongations of the pulp
The slightly raised line extending down the middle of the hard palate
Palatoglossus - palatopharyngeal

31. Angle of the Mandible
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids
Where the ramus meets the body of the mandible on the outside border
Mildest form of cleft palate
Corners of the mouth

32. What are the characteristics of permanent teeth?
Located on the inside of the body of the ramus
Cut - tear - and grind food
Enamel is thinner - pulp chamber is smaller -
The line of demarcation between the attached gingiva and the marginal gingiva

33. Maxillary Arch
Upper arch of the teeth
Elevated are of enamel that forms the Mesial and distal borders
Two cortical bone plates that come together between each tooth
A triangular area located behind the last molar

34. Concave
A raised area of tissue laying behind the maxillary central incisors on the hard palate
Opening for the ear
Indented
Initiation of the tooth begins

35. Fimbriated Folds
Tributary of the facial vein which connects the facial vein to the pterygoid plexus of the veins
Origin - fixed point - insertion - movable point
Dentin found between the tubules
Folds of tissue to the the lingual veins

36. Contact Area
Drains the Pterygoid plexus of the veins
Where the proximal sides of two teeth come together and touch
Drains the superficial veins of the face and neck into the subclavian vein
Function to resist rotational forces and tilting

37. Incisive Nerve branch
Bi-cuspids
Intervating the anterior teeth and the labial gingiva
The development of different tissues
Excess bone formations under the tongue on the alvellar bone

38. Lingual Frenum
Resulting from an imperfect union where the lobes come together
A line of tissue that extends from the tongue to the floor of the mouth
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged

39. Attached Gingiva
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
The development of different forms
The teeth located at the back of the mouth
Extends from the mucogingival junction to the gingival groove

40. Perikymata
Lining covers inside of the oral cavity
The slightly raised line extending down the middle of the hard palate
Molars
Small grooves noted on some teeth

41. Sublingual Caruncles
Function to resist rotational forces and tilting
The development of different tissues
Triangular space in the gingival direction when two adjacent teeth are in contact
2 small raised folds of tissue where the lingual frenum attaches

42. Stensens' Duct (aka Parotid)

43. Odontoblast
Tissue fluid surrounding the cell membrane of the odontoblast
Occurs in unusual ways and distorted crowns may appear
A projection that extends off the back of the soft palate
Cells that form dentin

44. Posterior Teeth
6 months/3years
The teeth located at the back of the mouth
Raised vertical folds of tissue on the lateral border of the tongue
An enclosed area that matures into dentin - cementum and pulp

45. Endoderm
A duct that empties into the mouth thru the parotid papilla - Parotid gland goes with Stensen's duct
Respiratory system - digestive system and glandular organs
The corners of the mouth where the top and bottom lip meet
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

46. Interradicular Septum
Supplies the gingival - maxillary sinus - cheeks - and maxillary molars with the exception of the mesial buccal root of the first molar
Largest papilla - mushroom shaped and are anterior to the sulcus terminalis in a row of 8 to 10
The bone that separates the root on a tooth
Enamel forming cells

47. Mantle Dentin
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine
The first predentin that is formed and matures within the tube
The deepest point of the vestibule
Maxillary first molar

48. Parotid glands
Dentin found between the tubules
Rounded depression on a tooth
Molars
The largest of the salivary glands which lie just below and in front of the ear

49. Eruption
Tooth emerges from gum tissue and becomes visible
Synovial fluid
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars
A line of demarcation between the attached gingiva and alveolar mucosa

50. Submandibular Glands