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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. Where is the palate located?
Located in a depressed area between the pillars
Draws the hyoid bone superiorly and posteriorly and stabilizes it
Two cortical bone plates that come together between each tooth
Inside of the maxillary teeth

2. Foliate Papillae
Elevated area fo enamel that extends obliquely across the occlusal surface of the tooth
Largest papilla - mushroom shaped and are anterior to the sulcus terminalis in a row of 8 to 10
4th week
Raised vertical folds of tissue on the lateral border of the tongue

3. Papilla
Genioglossus - hyoglossus - styloglossus - palatoglossus
Canal or passage for fluid
Bicuspids
Small raised projections where taste buds are located

4. Muscle Insertion
Incremental line indicating trauma of birth
The moveable attachment of the muscle
The inner surface of the cheeks
Scroll like bones outside the nasal cavaties

5. Pterygoid Artery
A flap of tissue on the on the buccal mucosa
Supplies blood to the temporal muscle - masseter muscle - pterygoid muscle and buccanator
Demonstrates a disturbance in the body metabolism
Greater - lesser - naso palatine nerves

6. Intertubular Dentin
Dentin found between the tubules
The portion of the tooth that meets the gingiva
Where the ectoderm layer matures into the enamel
Tooth emerges from gum tissue and becomes visible

7. How can you tell if someone has cancer by looking at the tongue?
Two smaller openings located behind the greater Palatine Foramen in the posterior region of the hard palate
Maxillary third molar
Looking at the border of the tongue
Innervates the orbicular oculi - the area around the eye - and the area around and behind the zygomatic arch

8. Peritubular Dentin
Creates the wall of the dentinal tubule
Assist in depressing the mandible and elevating the tongue
A rounded area beyond the last posterior maxillary tooth
Folds of tissue that extend horizontally from the uvula to the base of the tongue

9. Labial
The line of demarcation between the attached gingiva and the marginal gingiva
Exits the mandibular canal at the mental foramen and supplies the chin and lower lip
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids
Outside surface Which is towards the lips

10. Nasolacrimal groove
1500 millimeters
Vertical groove on the midline of the upper lip
Extends from the medial corner of the eye to the nasal cavity
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein

11. Mantle Dentin
Short tubules that seem to crossover to the enamel
20
Three bulges on the incisal edge
The first predentin that is formed and matures within the tube

12. Apposition
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue
1500 millimeters
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
Calcium salts are deposited into formed tooth

13. What is origin and What is insertion?
Indented
Conception thru the first two weeks
Clear fluid secreted by the salivary and mucous glands throughout the mouth
Origin - fixed point - insertion - movable point

14. Alveolar Crest
Stained growth rings in dentin
A pocket formed by the soft tissue of cheeks and gingiva
Two cortical bone plates that come together between each tooth
When cells rapidly increase in number

15. Sharpey's Fibers
More common in girls--the failure of the palatal shelves to fuse with the primary palate (1 in 2500 births)
Week 11
Acts as anchors between the alveolar bone and the tooth
Depresses the tongue

16. Torus Mandibularis
Study of the structure and form of the teeth
Band of fibrous tissue which attaches bone to bone
Excess bone formations under the tongue on the alvellar bone
Second teeth next to central incisors

17. Xygote
Retracts the tongue and raises the tip of the tongue
When cells rapidly increase in number
Vertical groove on the midline of the upper lip
Two smaller openings located behind the greater Palatine Foramen in the posterior region of the hard palate

18. Oblique Fiber Group
Dentin found between the tubules
Set of arches found farther in the back of the throat
Resists intrusive forces that try to push the tooth inwards
Drains the superficial veins of the face and neck into the subclavian vein

19. Bud stage
Initiation of the tooth begins
Distends the ramus - enters the mandibular foramen and bifurcates around the first premolar tooth to form the incisive and the mental arteries
Outside surface Which is towards the lips
Smaller branch that ennervates the soft palate uvula and tonsils

20. Oblique Ridge
Hinge motion and gliding movement
When the surface of the teeth becomes grooved
Occlusal surface of the posterior tooth
Elevated area fo enamel that extends obliquely across the occlusal surface of the tooth

21. Xygote
Forms a large cavity above the roots of the maxillary molars
Also known as meniscus it is a dense fibrous connective tissue that is thicker at the ends and attached to the condyle
Largest of the branches of the external carotid artery; supplies facial structure
Conception thru the first two weeks

22. What is Ankyloglossia and who can treat it / What is the treatment called?
The inner surface of the lips
A condition where the lower frenum attachment is very short/DDS/frenectomy
Intervates the anterior maxillary sinus - gingiva - cuspids - laterals - and central incisors
Cells develop into different tissues

23. Facial Vein
Outside surface Which is towards the cheek - on posterior teeth
Teeth after cuspids
Drains the facial structures beginning near the eye and descending toward the mandible
Draws the hyoid bone superiorly and posteriorly and stabilizes it

24. Vestibule Fornix
Lift the hyoid bone and assist in opening the mouth
The deepest point of the vestibule
Cells From which connective tissue evolve
Rounded depression on a tooth

25. Function of Platysma
To bulge of curve outward
Formed by the fibroblast cells and secures the tooth in the socket
Draws down the mandible and corners of the mouth
Excess bone in the middle of the palate

26. Buccal Mucosa
The inner surface of the cheeks
Two cortical bone plates that come together between each tooth
Excess bone in the middle of the palate
Branches off the inferior alveolar artery before intering the mandibular canal

27. Lingual Veins
A condition where the lower frenum attachment is very short/DDS/frenectomy
Bluish veins that run the length of the tongue
What divides the tongue in half and runs from the base to the tip of the tongue
Causes a thickening of the cementum around the apex

28. Mental Nerve Branch
Largest division of the trigeminal nerve
Lower arch of the teeth
Smaller - enamel thicker - pulp chamber is larger is larger - bifurcation wider
Outside surface Which is towards the cheek - on posterior teeth

29. Xerostomia
Surface towards the midline
Excess dryness of the mouth
Incremental line indicating trauma of birth
Appears to be loosely attached - covering the alveolar bone.

30. Circumpulpal Dentin
Ala of the nose - naso-labial groove - philtrum - vermilion border - vermilion zone - turbercle of the lip - labial commissures - labio-mental grooves
Moves the head backward and laterally
The layer of dentin that surrounds the pulp
Act to maintain the gingival integrity of the marginal gingiva

31. Cemental Spurs
Exits the mandibular canal at the mental foramen and supplies the chin and lower lip
Found near the cementoenamel junction
Assists in elevating the chin
Primary embryonic mesoderm layer that develops during the morpho differentiation period

32. How many roots/ cusps does the mandibular first molar have?
A line that represents the alveolus bone lining the socket
To lubricate the oral cavity and to moisten food
Bifurcated/ 5 cusps
Demonstrates a disturbance in the body metabolism

33. Labial Mucosa
Outside surface Which is towards the lips
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth
The inner surface of the lips
4/5 cusps/ 3 roots

34. Stomedeum
Innervates the orbicular oculi - the area around the eye - and the area around and behind the zygomatic arch
Portion covered with cementum
Greater - lesser - naso palatine nerves
Primitive mouth

35. Sublingual Glands
Elevates the posterior portion of the tongue and narrows the fauces
A small projection in the middle of the upper lip
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
Covers muscle tissue in the posterior portion of the palate

36. When do oral and nasal cavity separate and palate develop?
Forming organ takes shape and resembles the shape of a bell
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue
A condition where the lower frenum attachment is very short/DDS/frenectomy
Week 12

37. Cleft Lip
Rounded depression on a tooth
Separation of the upper lip ( 1 of 1000 live births)
Drains the Pterygoid plexus of the veins
Forms the remaining 2/3 of the hard and soft palate uvula

38. Fordyce's Spots
To dissolve
Formed by the fibroblast cells and secures the tooth in the socket
Also known as meniscus it is a dense fibrous connective tissue that is thicker at the ends and attached to the condyle
Small yellowish glands on the labial mucosa

39. Anomalies
Extreme variations from the norm
Disk that acts like a cushion between the temporal bone and the condyloid process
Inside of the maxillary teeth
Primitive mouth

40. Glenoid Fossa
Intervates the anterior maxillary sinus - gingiva - cuspids - laterals - and central incisors
Oval depression of temporal bone in condyloid process
To lubricate the oral cavity and to moisten food
Origin - fixed point - insertion - movable point

41. Cingulum
The cornerstone of the mouth
Sharp projection on the under surface of the temporal bone
Convex area on the lingual surface near gingiva
Curve outward

42. Cuspid
Third tooth from the midline
Drains the maxiallary artery and superficial temporal arteries
Chewing and swallowing food
The mandibular first premolar

43. Denticion
Bluish veins that run the length of the tongue
Two vertical extensions of the mandible
Natural teeth in position
Mildest form of cleft palate

44. Marginal Ridges
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone
Elevated are of enamel that forms the Mesial and distal borders
Excess bone in the middle of the palate
Tissue covering the alveolar processes

45. Clinical root
Pointed or rounded mounds on the crown of the tooth
Portion of the root seen in the oral cavity
Located on the inside of the body of the ramus
Occlusal surface of the posterior tooth

46. Inferior Nasal Conchae
Scroll like bones outside the nasal cavaties
Small yellowish glands on the labial mucosa
Fleshy elevation under the tongue
Found only in multi-rooted teeth and resists rotational forces

47. Lesser Palatine Nerve
Smaller branch that ennervates the soft palate uvula and tonsils
32
Developmental segment of a tooth
Teeth after cuspids

48. What is the function of the buccle nerve branch?
The moveable attachment of the muscle
Anterior to the ethmoid bone and part of the orbit (corners of the eye)
Separates the developing oral cavities from the nasal cavities
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars

49. Calcification
Peg shaped crown with a smooth surface
Bone that surrounds the root of the tooth
Vertical groove on the midline of the upper lip
Layers of tooth tissue become calcified

50. Convects
Curve outward
Primary and permanent
Molaris meaning millstone
Upper arch of the teeth