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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. Greater Palatine Foramen
Portion of the root seen in the oral cavity
Bluish veins that run the length of the tongue
The largest of three openings located in the posterior region of the hard palate
Draws down the mandible and corners of the mouth

2. Function of Trapezius
Short tubules that seem to crossover to the enamel
Corners of the mouth
Moves the head backward and laterally
Surface towards the midline

3. Paranasal
Calcified masses of dentin
Of or pertaining to area surrounding naval cavity
A bony plate covered with keratinized tissue located in the anterior portion of the palate
The study of the microscopic structure and functions of tissues

4. Vermilion Border
Portion of the lips where the skin meets the vermilion zone
Depresses the tongue
Cells From which connective tissue evolve
Allow flexibility during mastication - speech

5. Central Incisor
Middle two teeth in the mouth
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth
Cells that form cementum
Smaller - enamel thicker - pulp chamber is larger is larger - bifurcation wider

6. Apposition
Teeth will not erupt in proper position
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
A projection that extends off the back of the soft palate
Calcium salts are deposited into formed tooth

7. Perikymata
Where the ramus meets the body of the mandible on the outside border
Respiratory system - digestive system and glandular organs
Small grooves noted on some teeth
Permeante teeth replace the primary teeth

8. Lingual Vein
When the tissue becomes inflamed
Drains the floor of the mouth
Elevates the posterior portion of the tongue and narrows the fauces
Supportive fibers that anchor the tooth to the bone

9. Posterior Tonsillar Pillar
Supplies blood to the brain and the eyes
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged
Small grooves noted on some teeth
Set of arches found farther in the back of the throat

10. Zygomatic nerve
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Innervates the orbicular oculi - the area around the eye - and the area around and behind the zygomatic arch
Buccal - lingual - and inferior alveolar
4 cusps/ bifurcated

11. Dentinal Hypersensitivity
Pulls the hyoid bone and the tongue anteriorly
When the dentin is exposed
Triangular space in the gingival direction when two adjacent teeth are in contact
Surface away from the midline

12. Primary Dentin
Wearing away of the incisal or occlusal surfaces of the tooth
Follows the inside of the ramus and the body of the mandible
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle
Forms the bulk of the tooth

13. Median Sulcus
Looking at the border of the tongue
Cells develop into different tissues
What divides the tongue in half and runs from the base to the tip of the tongue
9 weeks thru birth

14. Function of Sternocleidomastoid
Assists in elevating the chin
A faint line going from the ala of the nose to the corner of the mouth
Supportive fibers that anchor the tooth to the bone
Pointed or rounded mounds on the crown of the tooth

15. If Palate not fused
Calcium salts are deposited into formed tooth
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids
Teeth will not erupt in proper position
Drains the facial structures beginning near the eye and descending toward the mandible

16. Enamel Spindle
Short tubules that seem to crossover to the enamel
Rounded depression on a tooth
Small bony projections surrounding the lingual foramen
More common in girls--the failure of the palatal shelves to fuse with the primary palate (1 in 2500 births)

17. Mixed Dentition
A period of both primary teeth and permeant teeth are in the dentition
Forms a large cavity above the roots of the maxillary molars
Vestibule - vestibule fornix - labial mucosa - buccal mucosa - parotid papilla - Stenson's duct - linea alba - Fordyce's spots - alveolar mucosa - gingiva - labial frenum - buccal frenum
Slight ridges on the cervical third of certain teeth that extend mesiodistally

18. Sphenoid
Temporal muscles - masseter muscles - internal pterygoid muscles - external pterygoid muscles
A bat shaped bone which forms the anterior portion of the skull
The development of different tissues
Hinge motion and gliding movement

19. Develop Mental Groove
Formed by the uniting of lobes during development of crown
Appears to be loosely attached - covering the alveolar bone.
Bluish veins that run the length of the tongue
Two weeks thru 8th week

20. Imbritation Lines of Von Eboner
The development of different forms
Stained growth rings in dentin
4 cusps/ bifurcated
Innervates the orbicular oculi - the area around the eye - and the area around and behind the zygomatic arch

21. Lacrimal Bones
Anterior to the ethmoid bone and part of the orbit (corners of the eye)
A line that represents the alveolus bone lining the socket
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged
6 months/3years

22. Palatine Raphe
The slightly raised line extending down the middle of the hard palate
Distends the ramus - enters the mandibular foramen and bifurcates around the first premolar tooth to form the incisive and the mental arteries
Exits the mandibular canal at the mental foramen and supplies the chin and lower lip
Cluster of tissue that manufactures and secrets fluid

23. Palatine Bones
To dissolve
Joined at the midline and are often referred to as the median Palatine suture
Shaping the tongue during speech - mastication and swallowing
Scroll like bones outside the nasal cavaties

24. Maxillary Sinus
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine
Forms a large cavity above the roots of the maxillary molars
Middle two teeth in the mouth
6 years old

25. Retromolar Area
A triangular area located behind the last molar
Ligaments and muscles of mastication
Joined at the midline and are often referred to as the median Palatine suture
The internal surface at the center of the mandible

26. When do the tooth buds appear?
Formed by the uniting of lobes during development of crown
Week 11
Middle line of the teeth
4 cusps/ bifurcated

27. Genial Tubercles
Distends the ramus - enters the mandibular foramen and bifurcates around the first premolar tooth to form the incisive and the mental arteries
A small projection in the middle of the upper lip
Small bony projections surrounding the lingual foramen
Responsible for laying down the enamel matrix into place

28. Embrasure
Found near the cementoenamel junction
Triangular space in the gingival direction when two adjacent teeth are in contact
Forms a large cavity above the roots of the maxillary molars
Tooth emerges from gum tissue and becomes visible

29. Dental Arteries
To bulge of curve outward
Secrete saliva to assist in process of digestion
What divides the tongue in half and runs from the base to the tip of the tongue
Supplies blood to the roots and periodontal ligaments of the molars and premolars

30. What is the most common problem with TMJ
Two vertical extensions of the mandible
The disc becomes displaced
1500 millimeters
Function to resist rotational forces and tilting

31. Tome's process
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue
Responsible for laying down the enamel matrix into place
Dividing point of a multi-rooted tooth

32. Dentogingival Fiber Groups
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Papillae that give the tongue the strawberry effect
Act to maintain the gingival integrity of the marginal gingiva
Extends interiorly from the pterygopalatine nerve and exits thru the incisive foramen

33. Retro Mandibular Vein
A line that represents the alveolus bone lining the socket
Distends the ramus - enters the mandibular foramen and bifurcates around the first premolar tooth to form the incisive and the mental arteries
Teeth after cuspids
Drains the maxiallary artery and superficial temporal arteries

34. Frenum
Initiation of the tooth begins
Allow flexibility during mastication - speech
Cells that form cementum
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip

35. Glenoid Fossa
Creates the wall of the dentinal tubule
Interdental ligament
Excess dryness of the mouth
Oval depression of temporal bone in condyloid process

36. What is the purpose of permanent teeth?
Demonstrates a disturbance in the body metabolism
Cut - tear - and grind food
Digstric - Mylohyoid - stylohyoid - geniohyoid
Band of fibrous tissue which attaches muscle to bone

37. Submandibular Glands

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38. What are the two ways the TMJs move?
Initiation of the tooth begins
Follows the length of the body of the mandible past the last tooth and up to the ramus
Hinge motion and gliding movement
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein

39. Fissure
More common in girls--the failure of the palatal shelves to fuse with the primary palate (1 in 2500 births)
Conception thru the first two weeks
Resulting from an imperfect union where the lobes come together
Allow flexibility during mastication - speech

40. What is origin and What is insertion?
A triangular area located behind the last molar
Elevated are of enamel that forms the Mesial and distal borders
Origin - fixed point - insertion - movable point
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41. Mandibular Foramen
Incremental lines around the layers of the enamel matrix
1500 millimeters
Located on the inside of the body of the ramus
Supplies blood to the temporal muscle - masseter muscle - pterygoid muscle and buccanator

42. What ligament is retained the longest during periodontal disease?
Interdental ligament
Resist rotational forces and hold teeth in inter-proximal contact
Wings of the sphenoid bone
Occlusal surface of the posterior tooth

43. Eruption
Three cusps/ trifurcated
Interdental ligament
Tooth emerges from gum tissue and becomes visible
Draws down the mandible and corners of the mouth

44. Incisive Papilla
The corners of the mouth where the top and bottom lip meet
When the tissue becomes inflamed
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
A raised area of tissue laying behind the maxillary central incisors on the hard palate

45. Inferior Alveolar Artery
An extension of an unattached gingiva and the tooth
Molars
Allow flexibility during mastication - speech
Distends the ramus - enters the mandibular foramen and bifurcates around the first premolar tooth to form the incisive and the mental arteries

46. How can you tell if someone has cancer by looking at the tongue?
Extreme variations from the norm
Looking at the border of the tongue
The bone that separates the root on a tooth
Separation of the upper lip ( 1 of 1000 live births)

47. Common Carotid
Pulls the hyoid bone and the tongue anteriorly
Stained growth rings in dentin
Arteries supplying blood to most of the head and the neck
Fleshy elevation under the tongue

48. Gingiva
Narrow long enamel tuft
Composed of mucosa and surrounds the necks of the teeth
Drains the Pterygoid plexus of the veins
Portion of the lips where the skin meets the vermilion zone

49. Fimbriated Folds
Primitive mouth
Folds of tissue to the the lingual veins
Union of two triangular ridges that produce a single ridge of elevation that cross the occlusal surface of posterior teeth
Distends the ramus - enters the mandibular foramen and bifurcates around the first premolar tooth to form the incisive and the mental arteries

50. Bud stage
Forms the remaining 2/3 of the hard and soft palate uvula
Used to pulverize food
Stained growth rings in dentin
Initiation of the tooth begins