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. Lingual Nerve Branch
Cut - tear - and grind food
Intervates the floor of the mouth the ventral side of the tongue taste buds on the anterior two thirds of the tongue and the lingual gingiva
Calcified masses of dentin
An extension of an unattached gingiva and the tooth

2. Gingiva
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein
Where the proximal sides of two teeth come together and touch
Composed of mucosa and surrounds the necks of the teeth
Molars

3. What is the purpose of permanent teeth?
Oval depression of temporal bone in condyloid process
Study of the structure and form of the teeth
Cut - tear - and grind food
Opening for the ear

4. Ectoderm
Forms into the inner lining of the oral cavitiy and enamel of the teeth
Folds of tissue that extend horizontally from the uvula to the base of the tongue
Drains the floor of the mouth
Middle line of the teeth

5. Gingiva
The largest of the salivary glands which lie just below and in front of the ear
A faint line going from the ala of the nose to the corner of the mouth
Divides the crown and the root
A dense tissue covered with mucous membrane that can withstand chewing

6. Infraorbital Foramen
Inside surface Which is towards the tongue - on anterior teeth
Drains the Pterygoid plexus of the veins
Opening in the mouth below the orbit on the maxillary bone
Two cortical bone plates that come together between each tooth

7. Lacrimal Bones
Small raised projections where taste buds are located
Smaller - enamel thicker - pulp chamber is larger is larger - bifurcation wider
Anterior to the ethmoid bone and part of the orbit (corners of the eye)
What divides the tongue in half and runs from the base to the tip of the tongue

8. Maxillary Artery
Triangular space in the gingival direction when two adjacent teeth are in contact
Largest of the branches of the external carotid artery; supplies facial structure
Inner portion of the enamel rod
Tributary of the facial vein which connects the facial vein to the pterygoid plexus of the veins

9. Which molar is the wisdom tooth
The line of demarcation between the attached gingiva and the marginal gingiva
Trigeminal - facial - glossopharyngeal - hypoglossal
Two vertical extensions of the mandible
Maxillary third molar

10. Mucogingival Junction
Resists forces that try to pull the tooth outward
Incremental lines around the layers of the enamel matrix
A line of demarcation between the attached gingiva and alveolar mucosa
The teeth located at the back of the mouth

11. Embrasure
Bone that surrounds the root of the tooth
The disc becomes displaced
Triangular space in the gingival direction when two adjacent teeth are in contact
The crown of the tooth that is nearest the incisal edge near the anterior tooth

12. Dentinal Hypersensitivity
Extreme variations from the norm
A triangular area located behind the last molar
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth
When the dentin is exposed

13. Alveolar Crest Fiber Group
Respiratory system - digestive system and glandular organs
Study of prenatal growth and the developing process of an individual
The teeth located at the back of the mouth
Function to resist rotational forces and tilting

14. Dentinal Tubules
Follows the length of the body of the mandible past the last tooth and up to the ramus
Tubules that pass through the entire surface of the dentin
Pulls the hyoid bone and the tongue anteriorly
Lift the hyoid bone and assist in opening the mouth

15. Calcification
The cornerstone of the mouth
Buccal - lingual - and inferior alveolar
Retracts the tongue and raises the tip of the tongue
Layers of tooth tissue become calcified

16. Maxilla
More common in girls--the failure of the palatal shelves to fuse with the primary palate (1 in 2500 births)
4th week
Largest facial bone with two sections joined at the median suture
Supportive fibers that anchor the tooth to the bone

17. 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 raised white line that runs parallel to where the teeth meet on the buccal mucosa
A small projection in the middle of the upper lip
Canal or passage for fluid

18. Mylohyoid Nerve Branch
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle
Forms a large cavity above the roots of the maxillary molars
Curve outward
Tributary of the facial vein which connects the facial vein to the pterygoid plexus of the veins

19. What are the three muscles of the neck?
Divides the crown and the root
Function to resist rotational forces and tilting
Narrow long enamel tuft
Platysma - trapezius - sternocleidomastoid

20. Primary Dentin
Fleshy elevation under the tongue
Forms the bulk of the tooth
Digstric - Mylohyoid - stylohyoid - geniohyoid
Disk that acts like a cushion between the temporal bone and the condyloid process

21. Mandibular Artery
No bicuspids/ no 3rd molars
Layers of tooth tissue become calcified
Located behind the ramus of the mandible and branches into five arteries
An enclosed area that matures into dentin - cementum and pulp

22. Attrition
Wearing away of the incisal or occlusal surfaces of the tooth
Oval depression of temporal bone in condyloid process
The corners of the mouth where the top and bottom lip meet
More common in girls--the failure of the palatal shelves to fuse with the primary palate (1 in 2500 births)

23. Xygote
Elevates the posterior portion of the tongue and narrows the fauces
Conception thru the first two weeks
Mucosa that covers the alveolar bone
Forms after the completion of the apical foramen

24. Histo Differentation
Excess dryness of the mouth
The development of different tissues
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx
Secrete saliva to assist in process of digestion

25. Odontal Fiber Groups
Week 11
The teeth located at the back of the mouth
Allow flexibility during mastication - speech
The disc becomes displaced

26. Exfoliated
The mandibular first premolar
A period of both primary teeth and permeant teeth are in the dentition
The first predentin that is formed and matures within the tube
Shed from the oral cavity

27. Rod Core
A projection that extends off the back of the soft palate
Opening for the ear
Formed by the fibroblast cells and secures the tooth in the socket
Inner portion of the enamel rod

28. Alveolar Crest
Follows the inside of the ramus and the body of the mandible
Two cortical bone plates that come together between each tooth
Curve outward
Excess dryness of the mouth

29. Stippled
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
Retracts the tongue and raises the tip of the tongue
Healthy gingival tissue with an orange texture
Full deep rich sound in nasal cavity

30. Parotid Papilla
Assist in the movement and functioning of the tongue
An enclosed area that matures into dentin - cementum and pulp
Also known as meniscus it is a dense fibrous connective tissue that is thicker at the ends and attached to the condyle
A flap of tissue on the on the buccal mucosa

31. Peg lateral
Forming organ takes shape and resembles the shape of a bell
Separates the developing oral cavities from the nasal cavities
Peg shaped crown with a smooth surface
The development of different forms

32. Stenson's Duct
Digstric - Mylohyoid - stylohyoid - geniohyoid
Extends from the medial corner of the eye to the nasal cavity
Duct located on the parotid papilla
Found near the cementoenamel junction

33. Enamel Spindle
Short tubules that seem to crossover to the enamel
Trigeminal nerve--because it ennervates the maxilla and the mandible
Aid in attaching the gingiva to the alveolar bone
Peg shaped crown with a smooth surface

34. Parotid glands
Cells develop into different tissues
Found only in multi-rooted teeth and resists rotational forces
The largest of the salivary glands which lie just below and in front of the ear
Teeth will not erupt in proper position

35. Dentogingival Fiber Groups
Place where the groove comes together or fissures cross
Compact bone plate of the facial and lingual surfaces
Lining covers inside of the oral cavity
Act to maintain the gingival integrity of the marginal gingiva

36. Dentinal Fluid
Opening for the ear
Surface towards the midline
A line that represents the alveolus bone lining the socket
Tissue fluid surrounding the cell membrane of the odontoblast

37. Lateral Incisor
A flap of tissue on the on the buccal mucosa
12 years
Second teeth next to central incisors
The connective tissue of the marginal gingiva

38. What are the largest and strongest of the mandibular teeth
A bony plate covered with keratinized tissue located in the anterior portion of the palate
Short tubules that seem to crossover to the enamel
Study of prenatal growth and the developing process of an individual
The mandibular molars

39. How many roots/ cusps does the mandibular first molar have?
Bifurcated/ 5 cusps
Incremental line indicating trauma of birth
Cheek bones--the most breakable bone in the body
An extension of an unattached gingiva and the tooth

40. Enamel Tufts
Papillae that give the tongue the strawberry effect
To bulge of curve outward
Located behind the ramus of the mandible and branches into five arteries
Small dark brushes

41. Contour Lines of Owen
Smaller branch that ennervates the soft palate uvula and tonsils
Demonstrates a disturbance in the body metabolism
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
Begin at the caruncles on either side of the frenum and run backward to the base of the tongue

42. Common Carotid
Arteries supplying blood to most of the head and the neck
A raised area of tissue laying behind the maxillary central incisors on the hard palate
Sharp projection on the under surface of the temporal bone
No bicuspids/ no 3rd molars

43. Fordyce's Spots
Linear elevation of the tooth
Small yellowish glands on the labial mucosa
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids
Appears to be loosely attached - covering the alveolar bone.

44. Cervical Third
Pointed or rounded mounds on the crown of the tooth
The area on the crown of the tooth that is nearest the gingival
What divides the tongue in half and runs from the base to the tip of the tongue
12 years

45. Periodontal Ligaments
Formed by the fibroblast cells and secures the tooth in the socket
Buccal - lingual - and inferior alveolar
Joined at the midline and are often referred to as the median Palatine suture
The outer edge of the nostril

46. Cortical Bone
Compact bone plate of the facial and lingual surfaces
Follows the length of the body of the mandible past the last tooth and up to the ramus
The slightly raised line extending down the middle of the hard palate
Union of two triangular ridges that produce a single ridge of elevation that cross the occlusal surface of posterior teeth

47. Mamelons
2 small raised folds of tissue where the lingual frenum attaches
Dentin found between the tubules
Inside of the maxillary teeth
Three bulges on the incisal edge

48. Perikymata
Tissue covering the alveolar processes
A horseshoe shaped groove that follow the curve of the dental arch
Largest papilla - mushroom shaped and are anterior to the sulcus terminalis in a row of 8 to 10
Small grooves noted on some teeth

49. Gums
Shed from the oral cavity
Tissue covering the alveolar processes
Forming organ takes shape and resembles the shape of a bell
Surface away from the midline

50. Secondary Dentin
Digstric - Mylohyoid - stylohyoid - geniohyoid
Curve outward
Forms after the completion of the apical foramen
Tissue fluid surrounding the cell membrane of the odontoblast