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. Angle of the Mandible
The space between the unattached gingiva and the tooth
The corners of the mouth where the top and bottom lip meet
Where the ramus meets the body of the mandible on the outside border
A period of both primary teeth and permeant teeth are in the dentition

2. Palatine Rugae
Pointed elongations of the pulp
The ridges that run horizontally across the hard palate behind the incisive papilla
Moves the head backward and laterally
Short tubules that seem to crossover to the enamel

3. Cleft Uvula
Place where the groove comes together or fissures cross
Mildest form of cleft palate
The disc becomes displaced
Narrow long enamel tuft

4. External Carotid Artery
Supplies blood to the face and oral cavity
Forms the bulk of the tooth
Drains the superficial veins of the face and neck into the subclavian vein
Folds of tissue that extend horizontally from the uvula to the base of the tongue

5. Primary palate
The gingiva in the floor of the gingival sulcus that attaches to the enamel
Separates the developing oral cavities from the nasal cavities
Lower arch of the teeth
Inside surface Which is towards the tongue - on anterior teeth

6. What are the 2 sets of teeth?
Smaller - enamel thicker - pulp chamber is larger is larger - bifurcation wider
Extends from the medial corner of the eye to the nasal cavity
Primary and permanent
Two smaller openings located behind the greater Palatine Foramen in the posterior region of the hard palate

7. Contour Lines of Owen
Formed by the fibroblast cells and secures the tooth in the socket
Forms into dentin - cementum and pulp of the teeth
Demonstrates a disturbance in the body metabolism
A faint line going from the ala of the nose to the corner of the mouth

8. Convex
Skeletal or soft tissue structures used as reference points in describing locations of anatomical structures or taking measurements
To dissolve
2 to 3 pints
To bulge of curve outward

9. Muscle Insertion
Cells that form cementum
Week 11
Corners of the mouth
The moveable attachment of the muscle

10. What is saliva made of?
Natural teeth in position
Act to maintain the gingival integrity of the marginal gingiva
H20 - mucin - organic salts and digestive enzymes
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface

11. What are the characteristics of deciduous teeth?
Two
Smaller - enamel thicker - pulp chamber is larger is larger - bifurcation wider
Trigeminal - facial - glossopharyngeal - hypoglossal
To dissolve

12. Buccal
Secrete saliva to assist in process of digestion
Outside surface Which is towards the cheek - on posterior teeth
Conception thru the first two weeks
Maxillary third molar

13. Function of Styloglossus
Assists in elevating the chin
Retracts the tongue and raises the tip of the tongue
The first predentin that is formed and matures within the tube
The gingiva in the floor of the gingival sulcus that attaches to the enamel

14. Function of Palatoglossus
Tissue fluid surrounding the cell membrane of the odontoblast
Occurs in unusual ways and distorted crowns may appear
Extends from the mucogingival junction to the gingival groove
Elevates the posterior portion of the tongue and narrows the fauces

15. Posterior Teeth
The teeth located at the back of the mouth
Circle and tighten the gingival margin around the neck of the tooth
Growth from the oral epithelium that gives rise to the tooth buds
Convex area on the lingual surface near gingiva

16. Intertubular Dentin
Assist in depressing the mandible and elevating the tongue
No bicuspids/ no 3rd molars
(free gingiva) surrounds the teeth
Dentin found between the tubules

17. Function of Trapezius
10 days
Where the ectoderm layer matures into the enamel
Curve outward
Moves the head backward and laterally

18. Circumvallate Papillae
The inner surface of the cheeks
A line of demarcation between the attached gingiva and alveolar mucosa
Largest papilla - mushroom shaped and are anterior to the sulcus terminalis in a row of 8 to 10
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface

19. What are the 4 cranial nerves that ennervate the face and oral cavity
Trigeminal - facial - glossopharyngeal - hypoglossal
Respiratory system - digestive system and glandular organs
Cheek bones--the most breakable bone in the body
Also known as meniscus it is a dense fibrous connective tissue that is thicker at the ends and attached to the condyle

20. What are the two muscles of the soft palate?
Palatoglossus - palatopharyngeal
Study of prenatal growth and the developing process of an individual
Forms a large cavity above the roots of the maxillary molars
Separation of the upper lip ( 1 of 1000 live births)

21. Filiform Papillae
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue
Act to maintain the gingival integrity of the marginal gingiva
Digstric - Mylohyoid - stylohyoid - geniohyoid
Inner portion of the enamel rod

22. Retro Mandibular Vein
Drains the maxiallary artery and superficial temporal arteries
The tip of the chin
No bicuspids/ no 3rd molars
Growth from the oral epithelium that gives rise to the tooth buds

23. Xerostomia
Maxillary third molar
Excess dryness of the mouth
Wearing away of the incisal or occlusal surfaces of the tooth
Smaller - enamel thicker - pulp chamber is larger is larger - bifurcation wider

24. Enamel Lamellae
Narrow long enamel tuft
Circle and tighten the gingival margin around the neck of the tooth
Shed from the oral cavity
Greater - lesser - naso palatine nerves

25. Papilla
Contains six branches that supply blood to the pharynx muscles - soft palate tonsils - the posterior of the tongue - sub mandibular gland - muscles of the face - nasal septom - nose and the eyelids
Small raised projections where taste buds are located
Acts as anchors between the alveolar bone and the tooth
Cluster of tissue that manufactures and secrets fluid

26. What are the largest and strongest of the mandibular teeth
Cells develop into different tissues
The gingiva in the floor of the gingival sulcus that attaches to the enamel
Stained growth rings in dentin
The mandibular molars

27. Vestibule
A pocket formed by the soft tissue of cheeks and gingiva
Week 12
Forms the bulk of the tooth
Largest of the branches of the external carotid artery; supplies facial structure

28. Alveolar Mucosa
Appears to be loosely attached - covering the alveolar bone.
Peg shaped crown with a smooth surface
Smaller branch that ennervates the soft palate uvula and tonsils
Follows the length of the body of the mandible past the last tooth and up to the ramus

29. Mamelons
Raised vertical folds of tissue on the lateral border of the tongue
A dense tissue covered with mucous membrane that can withstand chewing
Three bulges on the incisal edge
Maxillary third molar

30. Palantine Tonsils
Union of two triangular ridges that produce a single ridge of elevation that cross the occlusal surface of posterior teeth
Located in a depressed area between the pillars
Distends the ramus - enters the mandibular foramen and bifurcates around the first premolar tooth to form the incisive and the mental arteries
Week 12

31. Distal
Mastication - aids in speech - influence facial structure - chewing surfaces
Surface away from the midline
4th week
Portion of the root seen in the oral cavity

32. Middle Superior Alveolar Nerve
Demonstrates a disturbance in the body metabolism
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue
When cells rapidly increase in number
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids

33. Sublingual Sulcus
A junction or center of veins that directly or indirectly drain a vast area
A horseshoe shaped groove that follow the curve of the dental arch
The crown of the tooth that is nearest the incisal edge near the anterior tooth
The portion of the tooth that meets the gingiva

34. Linea Alba
An overgrowth of the gingival tissue
Second teeth next to central incisors
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

35. Maxilla
The mandibular first premolar
Largest facial bone with two sections joined at the median suture
Assist in depressing the mandible and elevating the tongue
A flap of tissue on the on the buccal mucosa

36. Tendon
4th week
Molaris meaning millstone
To lubricate the oral cavity and to moisten food
Band of fibrous tissue which attaches muscle to bone

37. Vestibule Fornix
Full deep rich sound in nasal cavity
Divides the crown and the root
When the surface of the teeth becomes grooved
The deepest point of the vestibule

38. Function of Digastric
Healthy gingival tissue with an orange texture
Lift the hyoid bone and assist in opening the mouth
Small raised projections where taste buds are located
Resist rotational forces and hold teeth in inter-proximal contact

39. Gland
Respiratory system - digestive system and glandular organs
Smaller branch that ennervates the soft palate uvula and tonsils
Cluster of tissue that manufactures and secrets fluid
Primitive mouth

40. Fungiform Papillae
Tooth emerges from gum tissue and becomes visible
Respiratory system - digestive system and glandular organs
Genioglossus - hyoglossus - styloglossus - palatoglossus
Papillae that give the tongue the strawberry effect

41. Lateral Incisor
Demonstrates a disturbance in the body metabolism
The mandibular first premolar
Second teeth next to central incisors
Begin at the caruncles on either side of the frenum and run backward to the base of the tongue

42. Naso Palatine Nerve
Extends interiorly from the pterygopalatine nerve and exits thru the incisive foramen
Shaping the tongue during speech - mastication and swallowing
Convex area on the lingual surface near gingiva
Forms the remaining 2/3 of the hard and soft palate uvula

43. Osteoclasts
A bony plate covered with keratinized tissue located in the anterior portion of the palate
Union of two triangular ridges that produce a single ridge of elevation that cross the occlusal surface of posterior teeth
Found only in multi-rooted teeth and resists rotational forces
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged

44. Peg lateral
Vestibule - vestibule fornix - labial mucosa - buccal mucosa - parotid papilla - Stenson's duct - linea alba - Fordyce's spots - alveolar mucosa - gingiva - labial frenum - buccal frenum
Peg shaped crown with a smooth surface
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
Smaller - enamel thicker - pulp chamber is larger is larger - bifurcation wider

45. Sulingual Folds
Fifth cusp located on the mesial surface lingual surface of maxillary first molars
Compact bone plate of the facial and lingual surfaces
Begin at the caruncles on either side of the frenum and run backward to the base of the tongue
Covering over the enamel that is left over from the epithelium ameloblasts

46. Interdental Gingiva
Calcified masses of dentin
Quarters of the teeth
An extension of an unattached gingiva and the tooth
Supplies blood to the roots and periodontal ligaments of the interior teeth

47. Where is the palate located?
Follows the inside of the ramus and the body of the mandible
The space between the unattached gingiva and the tooth
Inside of the maxillary teeth
Opening for the ear

48. Enamel Spindle
Enamel is thinner - pulp chamber is smaller -
Short tubules that seem to crossover to the enamel
Resists forces that try to pull the tooth outward
Appears to be loosely attached - covering the alveolar bone.

49. Posterior Tonsillar Pillar
Set of arches found farther in the back of the throat
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged
Trigeminal - facial - glossopharyngeal - hypoglossal
Papillae that give the tongue the strawberry effect

50. Dentinal Hypersensitivity
When the dentin is exposed
Vestibule - vestibule fornix - labial mucosa - buccal mucosa - parotid papilla - Stenson's duct - linea alba - Fordyce's spots - alveolar mucosa - gingiva - labial frenum - buccal frenum
Extends from the mucogingival junction to the gingival groove
Disk that acts like a cushion between the temporal bone and the condyloid process