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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.
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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. Cementoblast
Lower arch of the teeth
Peg shaped crown with a smooth surface
Composed of mucosa and surrounds the necks of the teeth
Cells that form cementum

2. Internal Carotid Artery
Small grooves noted on some teeth
Two weeks thru 8th week
Supplies blood to the brain and the eyes
Layers of tooth tissue become calcified

3. Cortical Bone
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
When the surface of the teeth becomes grooved
Compact bone plate of the facial and lingual surfaces
Lining covers inside of the oral cavity

4. Dentinal Tubules
Tubules that pass through the entire surface of the dentin
Drains the superficial veins of the face and neck into the subclavian vein
Scroll like bones outside the nasal cavaties
Cut - tear - and grind food

5. Occlusion third
Separates the developing oral cavities from the nasal cavities
Creates the wall of the dentinal tubule
Occlusal surface of the posterior tooth
Supplies blood to the temporal muscle - masseter muscle - pterygoid muscle and buccanator

6. Occlusal
Drains the Pterygoid plexus of the veins
Calcium salts are deposited into formed tooth
Pulverizing or chewing surface
Excess bone in the middle of the palate

7. When do oral and nasal cavity separate and palate develop?
Where the proximal sides of two teeth come together and touch
A period of both primary teeth and permeant teeth are in the dentition
Smaller branch that ennervates the soft palate uvula and tonsils
Week 12

8. Horizontal Fiber Group
The internal surface at the center of the mandible
4/5 cusps/ 3 roots
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars
Functions the same as the alveolar cfg; originate in alveolar bone

9. Function of Geniohyoid
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged
The deepest point of the vestibule
Tooth emerges from gum tissue and becomes visible
Pulls the hyoid bone and the tongue anteriorly

10. Salivary Glands
Secrete saliva to assist in process of digestion
Oval structures that are located on the dorsal surface of the tongue
The moveable attachment of the muscle
Tooth emerges from gum tissue and becomes visible

11. What is the purpose of permanent teeth?
Elevates the posterior portion of the tongue and narrows the fauces
A duct that empties into the mouth thru the parotid papilla - Parotid gland goes with Stensen's duct
Study of the structure and form of the teeth
Cut - tear - and grind food

12. Dentogingival Fiber Groups
Three cusps/ trifurcated
(free gingiva) surrounds the teeth
Where the proximal sides of two teeth come together and touch
Act to maintain the gingival integrity of the marginal gingiva

13. How many cusps/ roots do the 2/3rd maxillary molars have?
Three cusps/ trifurcated
Assist in the movement and functioning of the tongue
Drains the superficial veins of the face and neck into the subclavian vein
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx

14. Frenum
Dividing point of a multi-rooted tooth
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip
Constricts the nasopharyngeal passage and elevates the larynx

15. Submandibular Glands

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16. What is Ankyloglossia and who can treat it / What is the treatment called?
Cluster of tissue that manufactures and secrets fluid
A condition where the lower frenum attachment is very short/DDS/frenectomy
Healthy gingival tissue with an orange texture
Mandibular central incisors

17. Ameloblast
The moveable attachment of the muscle
To bulge of curve outward
Enamel forming cells
A bony projection that separates each socket

18. Mandibular Artery
Constricts the nasopharyngeal passage and elevates the larynx
Small curved lines that run parellel to the CEJ
Elevated are of enamel that forms the Mesial and distal borders
Located behind the ramus of the mandible and branches into five arteries

19. Buckle groove
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth
A rounded area beyond the last posterior maxillary tooth
Act to maintain the gingival integrity of the marginal gingiva
20

20. Interradicular Septum
Growth from the oral epithelium that gives rise to the tooth buds
Band of fibrous tissue which attaches muscle to bone
The bone that separates the root on a tooth
Triferacated

21. Gingival Hyperplasia
An overgrowth of the gingival tissue
Bluish veins that run the length of the tongue
Three cusps/ trifurcated
More common in girls--the failure of the palatal shelves to fuse with the primary palate (1 in 2500 births)

22. What teeth do the deciduous (baby) tooth not include?
Substances between cells
Two
No bicuspids/ no 3rd molars
1500 millimeters

23. Calcification
Drains the floor of the mouth
Layers of tooth tissue become calcified
Cells From which connective tissue evolve
To dissolve

24. Succedaneous teeth
Permeante teeth replace the primary teeth
Quarters of the teeth
Where the ramus meets the body of the mandible on the outside border
Shaping the tongue during speech - mastication and swallowing

25. Stenson's Duct
Teeth after cuspids
Used to pulverize food
Duct located on the parotid papilla
A pocket formed by the soft tissue of cheeks and gingiva

26. Xygote
Linear elevation of the tooth
Second teeth next to central incisors
Resist rotational forces and hold teeth in inter-proximal contact
When cells rapidly increase in number

27. Tome's process
Bifurcated/ 5 cusps
Secrete saliva to assist in process of digestion
Responsible for laying down the enamel matrix into place
Bicuspids

28. Supplemental Groove
Drains the Pterygoid plexus of the veins
The bone that separates the root on a tooth
Radiates from the developmental groove
Folds of tissue that extend horizontally from the uvula to the base of the tongue

29. What is the smallest tooth in dentition?
Outside surface Which is towards the cheek - on posterior teeth
The line of demarcation between the attached gingiva and the marginal gingiva
Mandibular central incisors
The cornerstone of the mouth

30. Ala of the Nose
A period of both primary teeth and permeant teeth are in the dentition
Shed from the oral cavity
The outer edge of the nostril
Vertical groove on the midline of the upper lip

31. What is the maxillary cuspid known as?
The cornerstone of the mouth
Pointed or rounded mounds on the crown of the tooth
To dissolve
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids

32. Central Incisor
Middle two teeth in the mouth
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
Moves the head backward and laterally

33. Mesenchyme Tissue
Shaping the tongue during speech - mastication and swallowing
Functions the same as the alveolar cfg; originate in alveolar bone
Primary embryonic mesoderm layer that develops during the morpho differentiation period
Peg shaped crown with a smooth surface

34. Greater Palatine Nerve
Conception thru the first two weeks
Used to pulverize food
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth
A line that represents the alveolus bone lining the socket

35. External Jugular Vein
Initiation of the tooth begins
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine
Drains the superficial veins of the face and neck into the subclavian vein
The corners of the mouth where the top and bottom lip meet

36. Hyoid Bone
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 teeth located at the back of the mouth
Demonstrates a disturbance in the body metabolism
Growth from the oral epithelium that gives rise to the tooth buds

37. Periodontal Ligaments
Formed by the fibroblast cells and secures the tooth in the socket
Inner portion of the enamel rod
Enamel forming cells
Bone that surrounds the root of the tooth

38. When do the primary teeth begin erupting and are fully erupted?
Short tubules that seem to crossover to the enamel
The moveable attachment of the muscle
6 months/3years
Primitive mouth

39. What are the characteristics of permanent teeth?
Drains the Pterygoid plexus of the veins
Biting edge of the teeth
Tissue fluid surrounding the cell membrane of the odontoblast
Enamel is thinner - pulp chamber is smaller -

40. Cuspid
Inside of the maxillary teeth
A duct that empties into the mouth thru the parotid papilla - Parotid gland goes with Stensen's duct
Inside surface Which is towards the tongue - on anterior teeth
Third tooth from the midline

41. Midline
Tubules that pass through the entire surface of the dentin
The space between the unattached gingiva and the tooth
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
Middle line of the teeth

42. Periodontium
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone
Bifurcated/ 5 cusps
Forms into dentin - cementum and pulp of the teeth

43. Naso Palatine Nerve
Supplies blood to the roots and periodontal ligaments of the molars and premolars
Lining covers inside of the oral cavity
Curve outward
Extends interiorly from the pterygopalatine nerve and exits thru the incisive foramen

44. Circumvallate Papillae
Trigeminal - facial - glossopharyngeal - hypoglossal
The line of demarcation between the attached gingiva and the marginal gingiva
Largest papilla - mushroom shaped and are anterior to the sulcus terminalis in a row of 8 to 10
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

45. Palatine Bones
Raised vertical folds of tissue on the lateral border of the tongue
Healthy gingival tissue with an orange texture
Exits the mandibular canal at the mental foramen and supplies the chin and lower lip
Joined at the midline and are often referred to as the median Palatine suture

46. Glenoid Fossa
The largest of the salivary glands which lie just below and in front of the ear
Oval depression of temporal bone in condyloid process
When the dentin is exposed
Arteries supplying blood to most of the head and the neck

47. If a patient receives toxic agents - how long does it take for their sense of taste to return?
10 days
Forms into the inner lining of the oral cavitiy and enamel of the teeth
Moves the head backward and laterally
Teeth will not erupt in proper position

48. Landmarks
Skeletal or soft tissue structures used as reference points in describing locations of anatomical structures or taking measurements
Study of the structure and form of the teeth
Follows the length of the body of the mandible past the last tooth and up to the ramus
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle

49. Mental Artery
A raised area of tissue laying behind the maxillary central incisors on the hard palate
Exits the mandibular canal at the mental foramen and supplies the chin and lower lip
Clear fluid secreted by the salivary and mucous glands throughout the mouth
Week 11

50. Endoderm
A rounded area beyond the last posterior maxillary tooth
Respiratory system - digestive system and glandular organs
Branches off the inferior alveolar artery before intering the mandibular canal
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