Test your basic knowledge |

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. What is the most common problem with TMJ
The mandibular molars
The disc becomes displaced
Distends the ramus - enters the mandibular foramen and bifurcates around the first premolar tooth to form the incisive and the mental arteries
Assists in elevating the chin

2. Central Incisor
Middle two teeth in the mouth
Week 12
Study of the structure and form of the teeth
Third tooth from the midline

3. Lamina Dura
Where the ectoderm layer matures into the enamel
A line that represents the alveolus bone lining the socket
A raised white line that runs parallel to where the teeth meet on the buccal mucosa
Molars

4. Anatomical root
Portion covered with cementum
Calcium salts are deposited into formed tooth
Cheek bones--the most breakable bone in the body
4 cusps/ bifurcated

5. Philtrum
The corners of the mouth where the top and bottom lip meet
Forms after the completion of the apical foramen
Week 11
A shallow v-shaped depression located below the bottom of the nose and above the lips

6. Ala of the Nose
Trigeminal nerve--because it ennervates the maxilla and the mandible
Mucosa that covers the alveolar bone
The outer edge of the nostril
Pointed or rounded mounds on the crown of the tooth

7. Stenson's Duct
The development of different cells
Elevated area fo enamel that extends obliquely across the occlusal surface of the tooth
Duct located on the parotid papilla
Primitive mouth

8. Gingiva
Drains the Pterygoid plexus of the veins
Located on the inside of the body of the ramus
Composed of mucosa and surrounds the necks of the teeth
Pulverizing or chewing surface

9. Develop Mental Groove
Of or pertaining to area surrounding naval cavity
Joined at the midline and are often referred to as the median Palatine suture
Assist in depressing the mandible and elevating the tongue
Formed by the uniting of lobes during development of crown

10. Maxillary Tuberosity
Drains the floor of the mouth
The development of different cells
Opening in the mouth below the orbit on the maxillary bone
A rounded area beyond the last posterior maxillary tooth

11. Exfoliated
Upper arch of the teeth
Shed from the oral cavity
Three cusps/ trifurcated
Greater - lesser - naso palatine nerves

12. Genial Tubercles
Also known as meniscus it is a dense fibrous connective tissue that is thicker at the ends and attached to the condyle
Small bony projections surrounding the lingual foramen
Trigeminal nerve--because it ennervates the maxilla and the mandible
Draws down the mandible and corners of the mouth

13. What are the 4 cranial nerves that ennervate the face and oral cavity
The development of different cells
Trigeminal - facial - glossopharyngeal - hypoglossal
Portion covered with cementum
To dissolve

14. What is the longest tooth in the mandibular arch?
The mandibular first premolar
The bone that separates the root on a tooth
Demonstrates a disturbance in the body metabolism
Forming organ takes shape and resembles the shape of a bell

15. Horizontal Fiber Group
Functions the same as the alveolar cfg; originate in alveolar bone
Cut - tear - and grind food
The layer of dentin that surrounds the pulp
Healthy gingival tissue with an orange texture

16. Intercellular Substances
Follows the inside of the ramus and the body of the mandible
Portion of the lips where the skin meets the vermilion zone
Substances between cells
Of or pertaining to area surrounding naval cavity

17. Tome's process
Responsible for laying down the enamel matrix into place
Used to pulverize food
Vertical groove on the midline of the upper lip
The internal surface at the center of the mandible

18. Ligament
Band of fibrous tissue which attaches bone to bone
The development of different cells
Vestibule - vestibule fornix - labial mucosa - buccal mucosa - parotid papilla - Stenson's duct - linea alba - Fordyce's spots - alveolar mucosa - gingiva - labial frenum - buccal frenum
The inner surface of the cheeks

19. Cortical Bone
Growth from the oral epithelium that gives rise to the tooth buds
Compact bone plate of the facial and lingual surfaces
Buccal - lingual - and inferior alveolar
Supportive fibers that anchor the tooth to the bone

20. Pterygoid Artery
Supplies blood to the temporal muscle - masseter muscle - pterygoid muscle and buccanator
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip
Cluster of tissue that manufactures and secrets fluid
The space between the unattached gingiva and the tooth

21. Torus Mandibularis
The layer of dentin that surrounds the pulp
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
Elevated are of enamel that forms the Mesial and distal borders
Excess bone formations under the tongue on the alvellar bone

22. How many cusps/ roots do the 2/3rd maxillary molars have?
Curve outward
Incremental lines around the layers of the enamel matrix
Drains the facial structures beginning near the eye and descending toward the mandible
Three cusps/ trifurcated

23. What are the 4 pairs of muscles of mastication!
A bat shaped bone which forms the anterior portion of the skull
Shed from the oral cavity
Temporal muscles - masseter muscles - internal pterygoid muscles - external pterygoid muscles
To lubricate the oral cavity and to moisten food

24. Sphenoid
Looking at the border of the tongue
A bat shaped bone which forms the anterior portion of the skull
A junction or center of veins that directly or indirectly drain a vast area
The inner surface of the cheeks

25. Gingiva
Primary and permanent
Three cusps/ trifurcated
Allow flexibility during mastication - speech
A dense tissue covered with mucous membrane that can withstand chewing

26. lst and second premolars
Teeth after cuspids
Forms a large cavity above the roots of the maxillary molars
When the surface of the teeth becomes grooved
Narrow long enamel tuft

27. Incisal third
The crown of the tooth that is nearest the incisal edge near the anterior tooth
Chewing and swallowing food
Vestibule - vestibule fornix - labial mucosa - buccal mucosa - parotid papilla - Stenson's duct - linea alba - Fordyce's spots - alveolar mucosa - gingiva - labial frenum - buccal frenum
Excess bone in the middle of the palate

28. What are the eight landmarks of the face?
Begin at the caruncles on either side of the frenum and run backward to the base of the tongue
Ala of the nose - naso-labial groove - philtrum - vermilion border - vermilion zone - turbercle of the lip - labial commissures - labio-mental grooves
Small raised projections where taste buds are located
Located on the inside of the body of the ramus

29. Function of Styloglossus
Buccal - lingual - and inferior alveolar
Retracts the tongue and raises the tip of the tongue
Chewing and swallowing food
The area on the crown of the tooth that is nearest the gingival

30. Mental Artery
Exits the mandibular canal at the mental foramen and supplies the chin and lower lip
Ala of the nose - naso-labial groove - philtrum - vermilion border - vermilion zone - turbercle of the lip - labial commissures - labio-mental grooves
A period of both primary teeth and permeant teeth are in the dentition
Ligaments and muscles of mastication

31. What is the purpose of saliva?
To lubricate the oral cavity and to moisten food
The area on the crown of the tooth that is nearest the gingival
Developmental segment of a tooth
Forms after the completion of the apical foramen

32. Labial
Ligaments and muscles of mastication
The inner surface of the lips
More common in girls--the failure of the palatal shelves to fuse with the primary palate (1 in 2500 births)
Outside surface Which is towards the lips

33. Common Carotid
Cluster of tissue that manufactures and secrets fluid
Chewing and swallowing food
Drains the floor of the mouth
Arteries supplying blood to most of the head and the neck

34. Meniscus
More common in girls--the failure of the palatal shelves to fuse with the primary palate (1 in 2500 births)
Resist rotational forces and hold teeth in inter-proximal contact
Calcium salts are deposited into formed tooth
Disk that acts like a cushion between the temporal bone and the condyloid process

35. Glenoid Fossa
Bone that surrounds the root of the tooth
Inside surface Which is towards the tongue - on anterior teeth
Oval depression of temporal bone in condyloid process
The inner surface of the cheeks

36. Vermilion Border
Portion of the lips where the skin meets the vermilion zone
Tooth emerges from gum tissue and becomes visible
1500 millimeters
Supplies blood to the roots and periodontal ligaments of the interior teeth

37. Distal
Constricts the nasopharyngeal passage and elevates the larynx
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle
Supportive fibers that anchor the tooth to the bone
Surface away from the midline

38. What are the largest and strongest of the mandibular teeth
The mandibular molars
Forms a large cavity above the roots of the maxillary molars
A junction or center of veins that directly or indirectly drain a vast area
A pocket formed by the soft tissue of cheeks and gingiva

39. Alveolar Mucosa
Excess bone in the middle of the palate
A raised white line that runs parallel to where the teeth meet on the buccal mucosa
Mucosa that covers the alveolar bone
Convex area on the lingual surface near gingiva

40. Lines of Retzius
Follows the length of the body of the mandible past the last tooth and up to the ramus
Incremental lines around the layers of the enamel matrix
20
Moves the head backward and laterally

41. Cleft Uvula
10 days
Mildest form of cleft palate
Incremental line indicating trauma of birth
Molars

42. Palatine Bones
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip
Joined at the midline and are often referred to as the median Palatine suture
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue
Narrow long enamel tuft

43. Median Sulcus
What divides the tongue in half and runs from the base to the tip of the tongue
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein
Calcified masses of dentin
Primary embryonic mesoderm layer that develops during the morpho differentiation period

44. Sharpey's Fibers
The inner surface of the cheeks
Constricts the nasopharyngeal passage and elevates the larynx
Acts as anchors between the alveolar bone and the tooth
12 years

45. Sublingual Sulcus
Lower arch of the teeth
Found only in multi-rooted teeth and resists rotational forces
Appears to be loosely attached - covering the alveolar bone.
A horseshoe shaped groove that follow the curve of the dental arch

46. When does the maxillary first molar erupt?
Portion covered with cementum
The area on the crown of the tooth that is nearest the gingival
6 years old
Retracts or depresses the tongue

47. How can you tell if someone has cancer by looking at the tongue?
9 weeks thru birth
Forming organ takes shape and resembles the shape of a bell
Looking at the border of the tongue
Peg shaped crown with a smooth surface

48. Lesser Palatine Foramen
Two smaller openings located behind the greater Palatine Foramen in the posterior region of the hard palate
Enamel is thinner - pulp chamber is smaller -
Rounded depression on a tooth
Tubules that pass through the entire surface of the dentin

49. Landmarks
Forms the bulk of the tooth
Skeletal or soft tissue structures used as reference points in describing locations of anatomical structures or taking measurements
Biting edge of the teeth
Tissue fluid surrounding the cell membrane of the odontoblast

50. Muscle origine
Cells develop into different tissues
The fixed attachment of a muscle
Allow flexibility during mastication - speech
Curve outward