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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. If Palate not fused
Drains the superficial veins of the face and neck into the subclavian vein
Disk that acts like a cushion between the temporal bone and the condyloid process
Teeth will not erupt in proper position
Two weeks thru 8th week

2. TMJ bones are bathed In what solution?
A condition where the lower frenum attachment is very short/DDS/frenectomy
Third tooth from the midline
Synovial fluid
Origin - fixed point - insertion - movable point

3. Intertubular Dentin
Bi-cuspids
Dentin found between the tubules
Permeante teeth replace the primary teeth
Short tubules that seem to crossover to the enamel

4. Inferior Nasal Conchae
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids
Molaris meaning millstone
Scroll like bones outside the nasal cavaties
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue

5. Incisive Arteries
Shed from the oral cavity
The study of the microscopic structure and functions of tissues
Supplies blood to the roots and periodontal ligaments of the interior teeth
Drains the maxiallary artery and superficial temporal arteries

6. Oblique Fiber Group
Resists intrusive forces that try to push the tooth inwards
A junction or center of veins that directly or indirectly drain a vast area
Three bulges on the incisal edge
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip

7. If a patient receives toxic agents - how long does it take for their sense of taste to return?
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
10 days
Full deep rich sound in nasal cavity
Largest of the branches of the external carotid artery; supplies facial structure

8. Alveolar Mucosa
Linear elevation of the tooth
Mucosa that covers the alveolar bone
Pulls the hyoid bone and the tongue anteriorly
Sharp projection on the under surface of the temporal bone

9. Imbrication lines
Draws down the mandible and corners of the mouth
Molaris meaning millstone
The mandibular first premolar
Slight ridges on the cervical third of certain teeth that extend mesiodistally

10. Retro Mandibular Vein
Chewing and swallowing food
The corners of the mouth where the top and bottom lip meet
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip
Drains the maxiallary artery and superficial temporal arteries

11. Epithelial Attachment
Duct located on the parotid papilla
Curve outward
A rounded area beyond the last posterior maxillary tooth
The gingiva in the floor of the gingival sulcus that attaches to the enamel

12. Xygote
Conception thru the first two weeks
Located on the inside of the body of the ramus
Tissue fluid surrounding the cell membrane of the odontoblast
Genioglossus - hyoglossus - styloglossus - palatoglossus

13. Xerostomia
Interdental ligament
A triangular area located behind the last molar
Looking at the border of the tongue
Excess dryness of the mouth

14. Lingual Veins
Bluish veins that run the length of the tongue
Dividing point of a multi-rooted tooth
The internal surface at the center of the mandible
Scroll like bones outside the nasal cavaties

15. Cleft Lip
The layer of dentin that surrounds the pulp
What divides the tongue in half and runs from the base to the tip of the tongue
Separation of the upper lip ( 1 of 1000 live births)
Dividing point of a multi-rooted tooth

16. Cementoblast
Primary and permanent
The largest of the salivary glands which lie just below and in front of the ear
Cells that form cementum
Small head - low nasal bridge - thin upper lip - small mandible

17. Naso Palatine Nerve
Slight ridges on the cervical third of certain teeth that extend mesiodistally
Extends interiorly from the pterygopalatine nerve and exits thru the incisive foramen
Bony projection found on the bottom border of the temporal bone
Forms the bulk of the tooth

18. Landmarks
Skeletal or soft tissue structures used as reference points in describing locations of anatomical structures or taking measurements
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue
A bat shaped bone which forms the anterior portion of the skull
Drains the Pterygoid plexus of the veins

19. Stippled
Digstric - Mylohyoid - stylohyoid - geniohyoid
9 weeks thru birth
Healthy gingival tissue with an orange texture
Act to maintain the gingival integrity of the marginal gingiva

20. Fordyce's Spots
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
Small yellowish glands on the labial mucosa
Drains the floor of the mouth
The area on the crown of the tooth that is nearest the gingival

21. Mucosa
Natural teeth in position
Supplies blood to the brain and the eyes
Stained growth rings in dentin
Lining covers inside of the oral cavity

22. What are the two ways the TMJs move?
Hinge motion and gliding movement
Incremental line indicating trauma of birth
A line of demarcation between the attached gingiva and alveolar mucosa
A raised white line that runs parallel to where the teeth meet on the buccal mucosa

23. What is the maxillary cuspid known as?
Used to pulverize food
Covering over the enamel that is left over from the epithelium ameloblasts
The cornerstone of the mouth
Elevated are of enamel that forms the Mesial and distal borders

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

25. Eruption
No bicuspids/ no 3rd molars
The disc becomes displaced
Radiates from the developmental groove
Tooth emerges from gum tissue and becomes visible

26. Mandible Arch
Maxillary third molar
Extends from the mucogingival junction to the gingival groove
Lower arch of the teeth
A line that represents the alveolus bone lining the socket

27. Maxillary Sinus
Forms a large cavity above the roots of the maxillary molars
2 to 3 pints
Used to pulverize food
Lift the hyoid bone and assist in opening the mouth

28. Rami
Supplies blood to the roots and periodontal ligaments of the interior teeth
Two vertical extensions of the mandible
Drains the maxiallary artery and superficial temporal arteries
Dividing point of a multi-rooted tooth

29. What are the characteristics of permanent teeth?
The development of different cells
Interdental ligament
Enamel is thinner - pulp chamber is smaller -
Excess bone formations under the tongue on the alvellar bone

30. Neonatal line
The crown of the tooth that is nearest the incisal edge near the anterior tooth
Papillae that give the tongue the strawberry effect
Located in a depressed area between the pillars
Incremental line indicating trauma of birth

31. What teeth are removed if overcrowding occurs?
Resists intrusive forces that try to push the tooth inwards
Bicuspids
Forms into dentin - cementum and pulp of the teeth
Sharp projection on the under surface of the temporal bone

32. Triangular Ridge
Biting edge of the teeth
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface
Act to maintain the gingival integrity of the marginal gingiva
Extends interiorly from the pterygopalatine nerve and exits thru the incisive foramen

33. Middle Superior Alveolar Nerve
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids
Assist in the movement and functioning of the tongue
An overgrowth of the gingival tissue
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars

34. Cleft Uvula
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids
When cells rapidly increase in number
Enamel forming cells
Mildest form of cleft palate

35. Secondary palate
Pulls the hyoid bone and the tongue anteriorly
Forms the remaining 2/3 of the hard and soft palate uvula
Resist rotational forces and hold teeth in inter-proximal contact
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

36. Sublingual Glands
Respiratory system - digestive system and glandular organs
The outer edge of the nostril
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
The crown of the tooth that is nearest the incisal edge near the anterior tooth

37. Occlusal
(free gingiva) surrounds the teeth
Tissue covering the alveolar processes
Pulverizing or chewing surface
A pocket formed by the soft tissue of cheeks and gingiva

38. Gingival Sulcus
Forms the bulk of the tooth
The space between the unattached gingiva and the tooth
Intervating the anterior teeth and the labial gingiva
A line of demarcation between the attached gingiva and alveolar mucosa

39. Buccal
Natural teeth in position
Outside surface Which is towards the cheek - on posterior teeth
Bone that surrounds the root of the tooth
Radiates from the developmental groove

40. Mandibular Artery
Located behind the ramus of the mandible and branches into five arteries
Dividing point of a multi-rooted tooth
Incremental lines around the layers of the enamel matrix
Middle two teeth in the mouth

41. Intercellular Substances
Greater - lesser - naso palatine nerves
Maxillary third molar
Substances between cells
Mildest form of cleft palate

42. Mastication
Forms into the inner lining of the oral cavitiy and enamel of the teeth
Chewing and swallowing food
The deepest point of the vestibule
1500 millimeters

43. Mixed Dentition
6 years old
Opening for the ear
A period of both primary teeth and permeant teeth are in the dentition
The inner surface of the lips

44. Stenson's Duct
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars
Duct located on the parotid papilla
The cornerstone of the mouth
Papillae that give the tongue the strawberry effect

45. What are the 4 maxillary nerve branches?
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine
Temporal muscles - masseter muscles - internal pterygoid muscles - external pterygoid muscles
Teeth after cuspids
Arteries supplying blood to most of the head and the neck

46. When do the primary teeth begin erupting and are fully erupted?
Layers of tooth tissue become calcified
6 months/3years
When the dentin is exposed
2 to 3 pints

47. Function of Stylohyoid
More common in girls--the failure of the palatal shelves to fuse with the primary palate (1 in 2500 births)
Draws the hyoid bone superiorly and posteriorly and stabilizes it
Growth from the oral epithelium that gives rise to the tooth buds
Bony projection found on the bottom border of the temporal bone

48. Styloid Process
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars
Molars
Sharp projection on the under surface of the temporal bone

49. Maxillary Nerve Branch
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx
Three bulges on the incisal edge
Digstric - Mylohyoid - stylohyoid - geniohyoid
Resists forces that try to pull the tooth outward

50. Cortical Bone
Disk that acts like a cushion between the temporal bone and the condyloid process
Upper arch of the teeth
Compact bone plate of the facial and lingual surfaces
Drains the floor of the mouth