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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. Cleft Palate
Drains the Pterygoid plexus of the veins
Fleshy elevation under the tongue
More common in girls--the failure of the palatal shelves to fuse with the primary palate (1 in 2500 births)
Largest of the branches of the external carotid artery; supplies facial structure

2. What are the 4 taste senses and where are they located?
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue
A period of both primary teeth and permeant teeth are in the dentition
32
Wings of the sphenoid bone

3. Facial development
Drains the maxiallary artery and superficial temporal arteries
4th week
A concave area where two bones of the mandible are fused in the center of the mandible on the external surface
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

4. Middle Superior Alveolar Nerve
Inside surface Which is towards the tongue - on anterior teeth
Week 12
Circle and tighten the gingival margin around the neck of the tooth
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids

5. Mucosa
Elevates the posterior portion of the tongue and narrows the fauces
Biting edge of the teeth
Lining covers inside of the oral cavity
Used to pulverize food

6. Imbracation Lines
Drains the facial structures beginning near the eye and descending toward the mandible
The bone that separates the root on a tooth
More common in girls--the failure of the palatal shelves to fuse with the primary palate (1 in 2500 births)
Small curved lines that run parellel to the CEJ

7. Mastication
Chewing and swallowing food
Acts as anchors between the alveolar bone and the tooth
Anterior to the ethmoid bone and part of the orbit (corners of the eye)
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone

8. Free Gingiva
The line of demarcation between the attached gingiva and the marginal gingiva
Elevated are of enamel that forms the Mesial and distal borders
The portion of the tooth that meets the gingiva
6 years old

9. Primary palate
Forms the bulk of the tooth
The development of different forms
Separates the developing oral cavities from the nasal cavities
Extends from the medial corner of the eye to the nasal cavity

10. Labial Mucosa
Largest of the branches of the external carotid artery; supplies facial structure
Forms into dentin - cementum and pulp of the teeth
The layer of dentin that surrounds the pulp
The inner surface of the lips

11. Ameloblast
Largest of the branches of the external carotid artery; supplies facial structure
Enamel forming cells
Convex area on the lingual surface near gingiva
The inner surface of the cheeks

12. When do oral and nasal cavity separate and palate develop?
Inner portion of the enamel rod
Week 12
Two weeks thru 8th week
Bicuspids

13. Gingival Hyperplasia
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle
Branches off the inferior alveolar artery before intering the mandibular canal
An overgrowth of the gingival tissue
A flap of tissue on the on the buccal mucosa

14. What are the eight landmarks of the face?
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth
Initiation of the tooth begins
Forms the remaining 2/3 of the hard and soft palate uvula
Ala of the nose - naso-labial groove - philtrum - vermilion border - vermilion zone - turbercle of the lip - labial commissures - labio-mental grooves

15. Resonance
Shed from the oral cavity
Full deep rich sound in nasal cavity
Teeth will not erupt in proper position
Synovial fluid

16. Calcification
Lift the hyoid bone and assist in opening the mouth
Supplies blood to the face and oral cavity
Layers of tooth tissue become calcified
Elevated are of enamel that forms the Mesial and distal borders

17. What is the function of the buccle nerve branch?
A raised white line that runs parallel to where the teeth meet on the buccal mucosa
Smaller branch that ennervates the soft palate uvula and tonsils
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars
Healthy gingival tissue with an orange texture

18. Submandibular Glands

19. Function of Geniohyoid
Respiratory system - digestive system and glandular organs
Bifurcated/ 5 cusps
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth
Pulls the hyoid bone and the tongue anteriorly

20. Histology
The study of the microscopic structure and functions of tissues
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged
Draws the hyoid bone superiorly and posteriorly and stabilizes it
Skeletal or soft tissue structures used as reference points in describing locations of anatomical structures or taking measurements

21. Which molar contains the cusp of Caribelli?
Supplies blood to the roots and periodontal ligaments of the interior teeth
Extends from the mucogingival junction to the gingival groove
When the surface of the teeth becomes grooved
Maxillary first molar

22. Meniscus
H20 - mucin - organic salts and digestive enzymes
Disk that acts like a cushion between the temporal bone and the condyloid process
The gingiva in the floor of the gingival sulcus that attaches to the enamel
Found only in multi-rooted teeth and resists rotational forces

23. Convex
To bulge of curve outward
Largest papilla - mushroom shaped and are anterior to the sulcus terminalis in a row of 8 to 10
A concave area where two bones of the mandible are fused in the center of the mandible on the external surface
Peg shaped crown with a smooth surface

24. Sublingual Caruncles
Cells that form cementum
Middle line of the teeth
2 small raised folds of tissue where the lingual frenum attaches
Lift the hyoid bone and assist in opening the mouth

25. What is the purpose of permanent teeth?
Cut - tear - and grind food
Used to pulverize food
The slightly raised line extending down the middle of the hard palate
When cells rapidly increase in number

26. Lingual Frenum
Cells that form cementum
A line of tissue that extends from the tongue to the floor of the mouth
Oval structures that are located on the dorsal surface of the tongue
Ala of the nose - naso-labial groove - philtrum - vermilion border - vermilion zone - turbercle of the lip - labial commissures - labio-mental grooves

27. Internal Carotid Artery
Branches off the inferior alveolar artery before intering the mandibular canal
Constricts the nasopharyngeal passage and elevates the larynx
H20 - mucin - organic salts and digestive enzymes
Supplies blood to the brain and the eyes

28. Common Carotid
Arteries supplying blood to most of the head and the neck
Covers muscle tissue in the posterior portion of the palate
Two smaller openings located behind the greater Palatine Foramen in the posterior region of the hard palate
Resulting from an imperfect union where the lobes come together

29. What are the two ways the TMJs move?
Portion of the root seen in the oral cavity
Oval structures that are located on the dorsal surface of the tongue
Secrete saliva to assist in process of digestion
Hinge motion and gliding movement

30. How many teeth are in the permanent set of teeth?
32
Resists forces that try to pull the tooth outward
Covers muscle tissue in the posterior portion of the palate
Primary embryonic mesoderm layer that develops during the morpho differentiation period

31. Proliferation
A bony plate covered with keratinized tissue located in the anterior portion of the palate
4/5 cusps/ 3 roots
Where the ectoderm layer matures into the enamel
Retracts the tongue and raises the tip of the tongue

32. External Auditory Meatus
Opening for the ear
Two vertical extensions of the mandible
The outer edge of the nostril
Conception thru the first two weeks

33. Neonatal line
Full deep rich sound in nasal cavity
Incremental line indicating trauma of birth
The cornerstone of the mouth
Elevated area fo enamel that extends obliquely across the occlusal surface of the tooth

34. Mesial
Surface towards the midline
A flap of tissue on the on the buccal mucosa
Covers muscle tissue in the posterior portion of the palate
Cluster of tissue that manufactures and secrets fluid

35. Anomalies
Extreme variations from the norm
Composed of mucosa and surrounds the necks of the teeth
Smaller branch that ennervates the soft palate uvula and tonsils
Papillae that give the tongue the strawberry effect

36. Nasolacrimal groove
Calcium salts are deposited into formed tooth
Extends from the medial corner of the eye to the nasal cavity
Composed of mucosa and surrounds the necks of the teeth
9 weeks thru birth

37. Marginal GIngiva
The mandibular first premolar
Demonstrates a disturbance in the body metabolism
Small yellowish glands on the labial mucosa
(free gingiva) surrounds the teeth

38. Mandibular Foramen
A raised white line that runs parallel to where the teeth meet on the buccal mucosa
Covering over the enamel that is left over from the epithelium ameloblasts
A triangular area located behind the last molar
Located on the inside of the body of the ramus

39. Labial Commissures
The corners of the mouth where the top and bottom lip meet
Cells that form cementum
The internal surface at the center of the mandible
Pulverizing or chewing surface

40. Stensens' Duct (aka Parotid)

41. Anterior Tonsillar Pillar
Located behind the ramus of the mandible and branches into five arteries
Drains the Pterygoid plexus of the veins
Folds of tissue that extend horizontally from the uvula to the base of the tongue
Excess bone formations under the tongue on the alvellar bone

42. What are the three muscles of the neck?
Teeth will not erupt in proper position
Forms into dentin - cementum and pulp of the teeth
Platysma - trapezius - sternocleidomastoid
Rounded depression on a tooth

43. Tubercle of the Lip
Of or pertaining to area surrounding naval cavity
A small projection in the middle of the upper lip
Assist in depressing the mandible and elevating the tongue
Maxillary third molar

44. Inferior Alveolar Artery
Distends the ramus - enters the mandibular foramen and bifurcates around the first premolar tooth to form the incisive and the mental arteries
Palatoglossus - palatopharyngeal
Vestibule - vestibule fornix - labial mucosa - buccal mucosa - parotid papilla - Stenson's duct - linea alba - Fordyce's spots - alveolar mucosa - gingiva - labial frenum - buccal frenum
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx

45. Mantle Dentin
The first predentin that is formed and matures within the tube
Genioglossus - hyoglossus - styloglossus - palatoglossus
A faint line going from the ala of the nose to the corner of the mouth
Inside of the maxillary teeth

46. Exfoliated
A dense tissue covered with mucous membrane that can withstand chewing
A rounded area beyond the last posterior maxillary tooth
Shed from the oral cavity
Portion of the lips where the skin meets the vermilion zone

47. Intercellular Substances
Peg shaped crown with a smooth surface
Canal or passage for fluid
Located on the inside of the body of the ramus
Substances between cells

48. Buccal Mucosa
Three cusps/ trifurcated
Innervates the orbicular oculi - the area around the eye - and the area around and behind the zygomatic arch
The inner surface of the cheeks
Primitive mouth

49. Enamel Spindle
Short tubules that seem to crossover to the enamel
Demonstrates a disturbance in the body metabolism
Cells that form dentin
Used to pulverize food

50. Histo Differentation
Trigeminal nerve--because it ennervates the maxilla and the mandible
Acts as anchors between the alveolar bone and the tooth
The development of different tissues
Pulverizing or chewing surface