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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. Mandible Arch
Curve outward
When the dentin is exposed
Lower arch of the teeth
Assist in the movement and functioning of the tongue

2. Infraorbital Foramen
Of or pertaining to area surrounding naval cavity
Cluster of tissue that manufactures and secrets fluid
4/5 cusps/ 3 roots
Opening in the mouth below the orbit on the maxillary bone

3. What is the purpose of saliva?
Small yellowish glands on the labial mucosa
Begin at the caruncles on either side of the frenum and run backward to the base of the tongue
Mildest form of cleft palate
To lubricate the oral cavity and to moisten food

4. Labial Mucosa
Drains the floor of the mouth
Located in a depressed area between the pillars
Study of prenatal growth and the developing process of an individual
The inner surface of the lips

5. Ectoderm
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids
Found near the cementoenamel junction
Dividing point of a multi-rooted tooth
Forms into the inner lining of the oral cavitiy and enamel of the teeth

6. What is the function of the buccle nerve branch?
Incremental line indicating trauma of birth
Occlusal surface of the posterior tooth
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars
Portion of the lips where the skin meets the vermilion zone

7. Tubercle of the Lip
A rounded area beyond the last posterior maxillary tooth
A small projection in the middle of the upper lip
Resists forces that try to pull the tooth outward
Initiation of the tooth begins

8. Intertubular Dentin
Set of arches found farther in the back of the throat
The fixed attachment of a muscle
Dentin found between the tubules
Trigeminal nerve--because it ennervates the maxilla and the mandible

9. How many cusps/ roots do the maxillary first molars have?
4/5 cusps/ 3 roots
Supplies the gingival - maxillary sinus - cheeks - and maxillary molars with the exception of the mesial buccal root of the first molar
Narrow long enamel tuft
Extends interiorly from the pterygopalatine nerve and exits thru the incisive foramen

10. Parotid glands
Origin of the tooth
Covering over the enamel that is left over from the epithelium ameloblasts
Oval depression of temporal bone in condyloid process
The largest of the salivary glands which lie just below and in front of the ear

11. Maxillary Arch
Distends the ramus - enters the mandibular foramen and bifurcates around the first premolar tooth to form the incisive and the mental arteries
Upper arch of the teeth
Exits the mandibular canal at the mental foramen and supplies the chin and lower lip
Two weeks thru 8th week

12. Secondary Dentin
9 weeks thru birth
Small dark brushes
Forms after the completion of the apical foramen
Vestibule - vestibule fornix - labial mucosa - buccal mucosa - parotid papilla - Stenson's duct - linea alba - Fordyce's spots - alveolar mucosa - gingiva - labial frenum - buccal frenum

13. Alveolar Crest Fiber Group
Tooth emerges from gum tissue and becomes visible
Functions the same as the alveolar cfg; originate in alveolar bone
An enclosed area that matures into dentin - cementum and pulp
Function to resist rotational forces and tilting

14. Eruption
An overgrowth of the gingival tissue
Orbicularis oris - buccinator - mentalis - zygomatic major
Healthy gingival tissue with an orange texture
Tooth emerges from gum tissue and becomes visible

15. How is the TMJ supported and what controls their movement?
Ligaments and muscles of mastication
An enclosed area that matures into dentin - cementum and pulp
Interdental ligament
Compact bone plate of the facial and lingual surfaces

16. Xygote
Shed from the oral cavity
Conception thru the first two weeks
Largest division of the trigeminal nerve
Greater - lesser - naso palatine nerves

17. Enamel Dysplasia
Maxillary first molar
To dissolve
When the surface of the teeth becomes grooved
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars

18. Maxillary Nerve Branch
Week 12
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx
Lining covers inside of the oral cavity
Biting edge of the teeth

19. Hard Palate
Smaller branch that ennervates the soft palate uvula and tonsils
The space between the unattached gingiva and the tooth
A bony plate covered with keratinized tissue located in the anterior portion of the palate
Largest of the branches of the external carotid artery; supplies facial structure

20. Naso Palatine Nerve
The ridges that run horizontally across the hard palate behind the incisive papilla
Where the proximal sides of two teeth come together and touch
Extends interiorly from the pterygopalatine nerve and exits thru the incisive foramen
Study of prenatal growth and the developing process of an individual

21. Pterygoid plexus of the veins
Incremental lines around the layers of the enamel matrix
Corners of the mouth
A shallow v-shaped depression located below the bottom of the nose and above the lips
A junction or center of veins that directly or indirectly drain a vast area

22. What are the 3 branches of the mandibular nerve branch?
The teeth located at the back of the mouth
Buccal - lingual - and inferior alveolar
Permeante teeth replace the primary teeth
Located behind the ramus of the mandible and branches into five arteries

23. What are the eight landmarks of the face?
Intervates the anterior maxillary sinus - gingiva - cuspids - laterals - and central incisors
Ala of the nose - naso-labial groove - philtrum - vermilion border - vermilion zone - turbercle of the lip - labial commissures - labio-mental grooves
Resists intrusive forces that try to push the tooth inwards
9 weeks thru birth

24. Incisive Arteries
Middle line of the teeth
Supplies blood to the roots and periodontal ligaments of the interior teeth
6 years old
6 months/3years

25. What are the four main functions of deciduous teeth?
A faint line going from the ala of the nose to the corner of the mouth
Secrete saliva to assist in process of digestion
Separates the developing oral cavities from the nasal cavities
Mastication - aids in speech - influence facial structure - chewing surfaces

26. Glenoid Fossa
Oval depression of temporal bone in condyloid process
Where the ramus meets the body of the mandible on the outside border
A raised area of tissue laying behind the maxillary central incisors on the hard palate
Forms a large cavity above the roots of the maxillary molars

27. Gingiva
Bluish veins that run the length of the tongue
Oval structures that are located on the dorsal surface of the tongue
A dense tissue covered with mucous membrane that can withstand chewing
Bi-cuspids

28. Sublingual Glands
Cells that form cementum
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
The portion of the tooth that meets the gingiva
A bat shaped bone which forms the anterior portion of the skull

29. Common Carotid
Arteries supplying blood to most of the head and the neck
Small curved lines that run parellel to the CEJ
Tissue covering the alveolar processes
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle

30. How many cusps/ roots do the 2/3rd maxillary molars have?
A rounded area beyond the last posterior maxillary tooth
Three cusps/ trifurcated
Calcium salts are deposited into formed tooth
Primary and permanent

31. Posterior Teeth
When cells rapidly increase in number
The teeth located at the back of the mouth
Forms a large cavity above the roots of the maxillary molars
Drains the facial structures beginning near the eye and descending toward the mandible

32. Which molar is the wisdom tooth
Largest facial bone with two sections joined at the median suture
Maxillary third molar
Resists forces that try to pull the tooth outward
The mandibular molars

33. Circular Ligament Fiber Groups
Circle and tighten the gingival margin around the neck of the tooth
Permeante teeth replace the primary teeth
Assist in depressing the mandible and elevating the tongue
A line of tissue that extends from the tongue to the floor of the mouth

34. Labial-Mental Groove
The groove below the lower lips that separates the lips from the chin
Bicuspids
The fixed attachment of a muscle
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle

35. Mucogingival Junction
Greater - lesser - naso palatine nerves
A line of demarcation between the attached gingiva and alveolar mucosa
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone
Constricts the nasopharyngeal passage and elevates the larynx

36. How many roots/ cusps does the mandibular first molar have?
Cluster of tissue that manufactures and secrets fluid
Separates the developing oral cavities from the nasal cavities
Bifurcated/ 5 cusps
The line of demarcation between the attached gingiva and the marginal gingiva

37. Cleft Uvula
Maxillary third molar
(free gingiva) surrounds the teeth
Inner portion of the enamel rod
Mildest form of cleft palate

38. Pterygoid Artery
Supplies blood to the temporal muscle - masseter muscle - pterygoid muscle and buccanator
Teeth will not erupt in proper position
Canal or passage for fluid
Resists intrusive forces that try to push the tooth inwards

39. Morpho differentiation
Teeth will not erupt in proper position
Pulverizing or chewing surface
The development of different forms
Calcium salts are deposited into formed tooth

40. Develop Mental Groove
The cornerstone of the mouth
Bifurcated/ 5 cusps
Largest papilla - mushroom shaped and are anterior to the sulcus terminalis in a row of 8 to 10
Formed by the uniting of lobes during development of crown

41. Stippled
An enclosed area that matures into dentin - cementum and pulp
Healthy gingival tissue with an orange texture
Resist rotational forces and hold teeth in inter-proximal contact
Anterior to the ethmoid bone and part of the orbit (corners of the eye)

42. Facial Vein
A concave area where two bones of the mandible are fused in the center of the mandible on the external surface
Allow flexibility during mastication - speech
Incremental line indicating trauma of birth
Drains the facial structures beginning near the eye and descending toward the mandible

43. Resonance
Small linear depression
Full deep rich sound in nasal cavity
To dissolve
Drains the superficial veins of the face and neck into the subclavian vein

44. Retromolar Area
Growth from the oral epithelium that gives rise to the tooth buds
Buccal - lingual - and inferior alveolar
A bony plate covered with keratinized tissue located in the anterior portion of the palate
A triangular area located behind the last molar

45. Contact Area
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids
Where the proximal sides of two teeth come together and touch
Synovial fluid
Lining covers inside of the oral cavity

46. Lamina Dura
A line that represents the alveolus bone lining the socket
Middle line of the teeth
Separates the developing oral cavities from the nasal cavities
Extreme variations from the norm

47. Palantine Tonsils
The teeth located at the back of the mouth
Located in a depressed area between the pillars
Initiation of the tooth begins
Two smaller openings located behind the greater Palatine Foramen in the posterior region of the hard palate

48. When does the maxillary second molar erupt?
Layers of tooth tissue become calcified
Fleshy elevation under the tongue
Exits the mandibular canal at the mental foramen and supplies the chin and lower lip
12 years

49. What are the two muscles of the soft palate?
Palatoglossus - palatopharyngeal
Shed from the oral cavity
Portion of the lips where the skin meets the vermilion zone
Extends interiorly from the pterygopalatine nerve and exits thru the incisive foramen

50. Vermilion Zone
Band of fibrous tissue which attaches bone to bone
Pointed or rounded mounds on the crown of the tooth
Triangular space in the gingival direction when two adjacent teeth are in contact
Portion of the lips that are red