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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. Vestibule Fornix
Follows the length of the body of the mandible past the last tooth and up to the ramus
Canal or passage for fluid
Resist rotational forces and hold teeth in inter-proximal contact
The deepest point of the vestibule

2. Symphysis
Respiratory system - digestive system and glandular organs
The crown of the tooth that is nearest the incisal edge near the anterior tooth
Third tooth from the midline
A concave area where two bones of the mandible are fused in the center of the mandible on the external surface

3. Sulingual Folds
Assist in the movement and functioning of the tongue
Extends from the mucogingival junction to the gingival groove
4th week
Begin at the caruncles on either side of the frenum and run backward to the base of the tongue

4. Greater Palatine Foramen
Assists in elevating the chin
A horseshoe shaped groove that follow the curve of the dental arch
The largest of three openings located in the posterior region of the hard palate
The teeth located at the back of the mouth

5. Mixed Dentition
Dentin found between the tubules
Assist in depressing the mandible and elevating the tongue
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

6. Interradical Fiber Group
Opening for the ear
Found only in multi-rooted teeth and resists rotational forces
The line of demarcation between the attached gingiva and the marginal gingiva
Trigeminal nerve--because it ennervates the maxilla and the mandible

7. Mandible Arch
Mandibular central incisors
Surface towards the midline
Lower arch of the teeth
The tip of the chin

8. Stensens' Duct (aka Parotid)

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9. How can you tell if someone has cancer by looking at the tongue?
Forms the remaining 2/3 of the hard and soft palate uvula
Innervates the orbicular oculi - the area around the eye - and the area around and behind the zygomatic arch
Looking at the border of the tongue
Divides the crown and the root

10. Lingual Foramen
9 weeks thru birth
Cluster of tissue that manufactures and secrets fluid
The internal surface at the center of the mandible
A bony plate covered with keratinized tissue located in the anterior portion of the palate

11. What is the purpose of saliva?
Retracts or depresses the tongue
Cells that form dentin
To lubricate the oral cavity and to moisten food
Conception thru the first two weeks

12. What is the smallest tooth in dentition?
Disk that acts like a cushion between the temporal bone and the condyloid process
A raised area of tissue laying behind the maxillary central incisors on the hard palate
Mandibular central incisors
Permeante teeth replace the primary teeth

13. What teeth do the deciduous (baby) tooth not include?
Wings of the sphenoid bone
No bicuspids/ no 3rd molars
Formed by the uniting of lobes during development of crown
Enamel is thinner - pulp chamber is smaller -

14. Apical Fiber Group
Inside of the maxillary teeth
Resists forces that try to pull the tooth outward
Growth from the oral epithelium that gives rise to the tooth buds
Surface towards the midline

15. What are the 12 landmarks of the oral cavity?

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16. What are the two ways the TMJs move?
Third tooth from the midline
Assist in the movement and functioning of the tongue
Hinge motion and gliding movement
Wings of the sphenoid bone

17. Occlusal
Interdental ligament
To bulge of curve outward
Indented
Pulverizing or chewing surface

18. Fetal Alcohol Syndrome symptons
Small head - low nasal bridge - thin upper lip - small mandible
Tributary of the facial vein which connects the facial vein to the pterygoid plexus of the veins
Permeante teeth replace the primary teeth
Allow flexibility during mastication - speech

19. Mantle Dentin
Excess bone in the middle of the palate
The first predentin that is formed and matures within the tube
The cornerstone of the mouth
2 to 3 pints

20. What is the most common problem with TMJ
Small grooves noted on some teeth
Two smaller openings located behind the greater Palatine Foramen in the posterior region of the hard palate
The disc becomes displaced
Slight ridges on the cervical third of certain teeth that extend mesiodistally

21. How is the TMJ supported and what controls their movement?
Ligaments and muscles of mastication
Clear fluid secreted by the salivary and mucous glands throughout the mouth
Cells that form cementum
Branches off the inferior alveolar artery before intering the mandibular canal

22. Internal Oblique Ridge
Pointed or rounded mounds on the crown of the tooth
Primary embryonic mesoderm layer that develops during the morpho differentiation period
Follows the inside of the ramus and the body of the mandible
Triangular space in the gingival direction when two adjacent teeth are in contact

23. External Jugular Vein
Drains the superficial veins of the face and neck into the subclavian vein
Upper arch of the teeth
Teeth after cuspids
Scroll like bones outside the nasal cavaties

24. Torus
Small yellowish glands on the labial mucosa
Excess bone in the middle of the palate
Composed of mucosa and surrounds the necks of the teeth
Covers muscle tissue in the posterior portion of the palate

25. Mastication
A duct that empties into the mouth thru the parotid papilla - Parotid gland goes with Stensen's duct
Chewing and swallowing food
The first predentin that is formed and matures within the tube
The study of the microscopic structure and functions of tissues

26. Mylohyoid Nerve Branch
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine
Curve outward
Assist in depressing the mandible and elevating the tongue

27. Articular Disc
Elevated area fo enamel that extends obliquely across the occlusal surface of the tooth
Forms into the inner lining of the oral cavitiy and enamel of the teeth
Also known as meniscus it is a dense fibrous connective tissue that is thicker at the ends and attached to the condyle
Drains the floor of the mouth

28. What are the four main functions of deciduous teeth?
Triangular space in the gingival direction when two adjacent teeth are in contact
Mastication - aids in speech - influence facial structure - chewing surfaces
A bat shaped bone which forms the anterior portion of the skull
Draws down the mandible and corners of the mouth

29. Function of Geneoglossus?
Mastication - aids in speech - influence facial structure - chewing surfaces
Formed by the uniting of lobes during development of crown
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface
Retracts or depresses the tongue

30. Palatine Rugae
Primitive mouth
A shallow v-shaped depression located below the bottom of the nose and above the lips
Quarters of the teeth
The ridges that run horizontally across the hard palate behind the incisive papilla

31. What is the function of the buccle nerve branch?
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars
Located in a depressed area between the pillars
Inside surface Which is towards the tongue - on anterior teeth

32. Attached Gingiva
Extends from the mucogingival junction to the gingival groove
A raised area of tissue laying behind the maxillary central incisors on the hard palate
Draws down the mandible and corners of the mouth
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue

33. Imbrication lines
Slight ridges on the cervical third of certain teeth that extend mesiodistally
12 years
Drains the maxiallary artery and superficial temporal arteries
Found near the cementoenamel junction

34. Cementoblast
Surface towards the midline
Cells that form cementum
A faint line going from the ala of the nose to the corner of the mouth
Separates the developing oral cavities from the nasal cavities

35. Contact Area
The disc becomes displaced
The cornerstone of the mouth
The mandibular first premolar
Where the proximal sides of two teeth come together and touch

36. Cervical line
Inside surface Which is towards the tongue - on anterior teeth
Origin of the tooth
Divides the crown and the root
Moves the head backward and laterally

37. Gingival Groove
Forms into the inner lining of the oral cavitiy and enamel of the teeth
The line of demarcation between the attached gingiva and the marginal gingiva
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged
Cells develop into different tissues

38. What are the characteristics of permanent teeth?
Enamel is thinner - pulp chamber is smaller -
The area on the crown of the tooth that is nearest the gingival
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
A raised area of tissue laying behind the maxillary central incisors on the hard palate

39. Triangular Ridge
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface
Innervates the orbicular oculi - the area around the eye - and the area around and behind the zygomatic arch
The cornerstone of the mouth
Forms after the completion of the apical foramen

40. Attrition
Wearing away of the incisal or occlusal surfaces of the tooth
Shed from the oral cavity
Where the ramus meets the body of the mandible on the outside border
The disc becomes displaced

41. Buccal Mucosa
The inner surface of the cheeks
To lubricate the oral cavity and to moisten food
Outside surface Which is towards the cheek - on posterior teeth
Also known as meniscus it is a dense fibrous connective tissue that is thicker at the ends and attached to the condyle

42. Uvula
1500 millimeters
A projection that extends off the back of the soft palate
The inner surface of the lips
Largest of the branches of the external carotid artery; supplies facial structure

43. Pulp horns
Trigeminal - facial - glossopharyngeal - hypoglossal
Fleshy elevation under the tongue
Pointed elongations of the pulp
Drains the superficial veins of the face and neck into the subclavian vein

44. Contour Lines of Owen
Resist rotational forces and hold teeth in inter-proximal contact
Used to pulverize food
Demonstrates a disturbance in the body metabolism
When cells rapidly increase in number

45. Parotid glands
Surface towards the midline
Incremental lines around the layers of the enamel matrix
Constricts the nasopharyngeal passage and elevates the larynx
The largest of the salivary glands which lie just below and in front of the ear

46. What is origin and What is insertion?
Maxillary first molar
A raised area of tissue laying behind the maxillary central incisors on the hard palate
Origin - fixed point - insertion - movable point
Supplies blood to the face and oral cavity

47. When do oral and nasal cavity separate and palate develop?
Of or pertaining to area surrounding naval cavity
Set of arches found farther in the back of the throat
2 small raised folds of tissue where the lingual frenum attaches
Week 12

48. Ala of the Nose
A small projection in the middle of the upper lip
Found only in multi-rooted teeth and resists rotational forces
Teeth will not erupt in proper position
The outer edge of the nostril

49. Buckle groove
Teeth after cuspids
The groove below the lower lips that separates the lips from the chin
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth
Dividing point of a multi-rooted tooth

50. Hypercementosis
Surface towards the midline
Excess bone in the middle of the palate
Causes a thickening of the cementum around the apex
Cut - tear - and grind food