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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. Mandibular Foramen
Demonstrates a disturbance in the body metabolism
To bulge of curve outward
Located on the inside of the body of the ramus
Follows the length of the body of the mandible past the last tooth and up to the ramus

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

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3. Proliferation
Small dark brushes
Covers muscle tissue in the posterior portion of the palate
Where the ectoderm layer matures into the enamel
A duct that empties into the mouth thru the parotid papilla - Parotid gland goes with Stensen's duct

4. How much saliva is produced daily?
A projection that extends off the back of the soft palate
The moveable attachment of the muscle
Calcium salts are deposited into formed tooth
1500 millimeters

5. Palatine Bones
Surface away from the midline
A rounded area beyond the last posterior maxillary tooth
Tributary of the facial vein which connects the facial vein to the pterygoid plexus of the veins
Joined at the midline and are often referred to as the median Palatine suture

6. Dentogingival Fiber Groups
Follows the length of the body of the mandible past the last tooth and up to the ramus
Act to maintain the gingival integrity of the marginal gingiva
A triangular area located behind the last molar
Responsible for laying down the enamel matrix into place

7. When does the maxillary first molar erupt?
Week 12
The largest of the salivary glands which lie just below and in front of the ear
6 years old
Covers muscle tissue in the posterior portion of the palate

8. Periodontium
Triferacated
Lift the hyoid bone and assist in opening the mouth
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone
Cells develop into different tissues

9. Convects
Opening in the mouth below the orbit on the maxillary bone
Curve outward
Study of prenatal growth and the developing process of an individual
Maxillary first molar

10. Vestibule
A pocket formed by the soft tissue of cheeks and gingiva
Incremental lines around the layers of the enamel matrix
Small raised projections where taste buds are located
The internal surface at the center of the mandible

11. Histology
Layers of tooth tissue become calcified
The moveable attachment of the muscle
The study of the microscopic structure and functions of tissues
Interdental ligament

12. Function of Palatoglossus
Small head - low nasal bridge - thin upper lip - small mandible
Surface away from the midline
Act to maintain the gingival integrity of the marginal gingiva
Elevates the posterior portion of the tongue and narrows the fauces

13. Where is the palate located?
Drains the maxiallary artery and superficial temporal arteries
Inside of the maxillary teeth
Union of two triangular ridges that produce a single ridge of elevation that cross the occlusal surface of posterior teeth
A small projection in the middle of the upper lip

14. What is saliva made of?
Two
The ridges that run horizontally across the hard palate behind the incisive papilla
Pulverizing or chewing surface
H20 - mucin - organic salts and digestive enzymes

15. Clinical root
Draws down the mandible and corners of the mouth
Mucosa that covers the alveolar bone
Portion of the root seen in the oral cavity
Function to resist rotational forces and tilting

16. Function of Trapezius
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth
Oval structures that are located on the dorsal surface of the tongue
Moves the head backward and laterally
Draws the hyoid bone superiorly and posteriorly and stabilizes it

17. Alveolus
Supplies blood to the roots and periodontal ligaments of the interior teeth
Located on the inside of the body of the ramus
Bone that surrounds the root of the tooth
Drains the maxiallary artery and superficial temporal arteries

18. Embryology
Study of prenatal growth and the developing process of an individual
Drains the facial structures beginning near the eye and descending toward the mandible
Curve outward
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein

19. What is origin and What is insertion?
A bony plate covered with keratinized tissue located in the anterior portion of the palate
Functions the same as the alveolar cfg; originate in alveolar bone
Opening in the mouth below the orbit on the maxillary bone
Origin - fixed point - insertion - movable point

20. Saliva
Clear fluid secreted by the salivary and mucous glands throughout the mouth
Demonstrates a disturbance in the body metabolism
Orbicularis oris - buccinator - mentalis - zygomatic major
Curve outward

21. What teeth are removed if overcrowding occurs?
Forms the remaining 2/3 of the hard and soft palate uvula
Bicuspids
Wings of the sphenoid bone
Triangular space in the gingival direction when two adjacent teeth are in contact

22. Endoderm
Respiratory system - digestive system and glandular organs
Forms into the inner lining of the oral cavitiy and enamel of the teeth
Biting edge of the teeth
Lift the hyoid bone and assist in opening the mouth

23. Soft Palate
Used to pulverize food
The outer edge of the nostril
Vertical groove on the midline of the upper lip
Covers muscle tissue in the posterior portion of the palate

24. Inferior Nasal Conchae
Temporal muscles - masseter muscles - internal pterygoid muscles - external pterygoid muscles
A horseshoe shaped groove that follow the curve of the dental arch
Scroll like bones outside the nasal cavaties
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth

25. Philtrum
Draws down the mandible and corners of the mouth
Vestibule - vestibule fornix - labial mucosa - buccal mucosa - parotid papilla - Stenson's duct - linea alba - Fordyce's spots - alveolar mucosa - gingiva - labial frenum - buccal frenum
A shallow v-shaped depression located below the bottom of the nose and above the lips
Molars

26. Alveolar Crest
Middle two teeth in the mouth
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
Two cortical bone plates that come together between each tooth
Origin of the tooth

27. Peg lateral
Two vertical extensions of the mandible
Bluish veins that run the length of the tongue
Peg shaped crown with a smooth surface
Week 11

28. Vestibule Fornix
Sharp projection on the under surface of the temporal bone
Tooth emerges from gum tissue and becomes visible
Bicuspids
The deepest point of the vestibule

29. Gingival Sulcus
9 weeks thru birth
Clear fluid secreted by the salivary and mucous glands throughout the mouth
The space between the unattached gingiva and the tooth
Week 11

30. What are the largest and strongest of the mandibular teeth
The mandibular molars
Pulls the hyoid bone and the tongue anteriorly
9 weeks thru birth
Week 11

31. Sublingual Glands
Mucosa that covers the alveolar bone
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
Supplies blood to the face and oral cavity
Orbicularis oris - buccinator - mentalis - zygomatic major

32. Cusps
Allow flexibility during mastication - speech
Synovial fluid
Retracts or depresses the tongue
Pointed or rounded mounds on the crown of the tooth

33. Enamel Lamellae
Narrow long enamel tuft
The study of the microscopic structure and functions of tissues
Also known as meniscus it is a dense fibrous connective tissue that is thicker at the ends and attached to the condyle
The development of different cells

34. Embrasure
Retracts or depresses the tongue
Drains the facial structures beginning near the eye and descending toward the mandible
A raised area of tissue laying behind the maxillary central incisors on the hard palate
Triangular space in the gingival direction when two adjacent teeth are in contact

35. How many cusps/ roots do the maxillary first molars have?
Retracts the tongue and raises the tip of the tongue
Corners of the mouth
4/5 cusps/ 3 roots
Skeletal or soft tissue structures used as reference points in describing locations of anatomical structures or taking measurements

36. Resonance
A faint line going from the ala of the nose to the corner of the mouth
Full deep rich sound in nasal cavity
The groove below the lower lips that separates the lips from the chin
Triferacated

37. External Auditory Meatus
Folds of tissue that extend horizontally from the uvula to the base of the tongue
Opening for the ear
Draws the hyoid bone superiorly and posteriorly and stabilizes it
Drains the maxiallary artery and superficial temporal arteries

38. Interradical Fiber Group
Chewing and swallowing food
Found only in multi-rooted teeth and resists rotational forces
The gingiva in the floor of the gingival sulcus that attaches to the enamel
Molaris meaning millstone

39. Agenesis
Intervates the anterior maxillary sinus - gingiva - cuspids - laterals - and central incisors
Occurs in unusual ways and distorted crowns may appear
Portion of the lips that are red
Initiation of the tooth begins

40. What are the characteristics of permanent teeth?
Quarters of the teeth
Enamel is thinner - pulp chamber is smaller -
Where the ramus meets the body of the mandible on the outside border
The connective tissue of the marginal gingiva

41. How many teeth are in the Primary teeth?
Cells develop into different tissues
Circle and tighten the gingival margin around the neck of the tooth
20
Folds of tissue to the the lingual veins

42. Function of Digastric
Lift the hyoid bone and assist in opening the mouth
More common in girls--the failure of the palatal shelves to fuse with the primary palate (1 in 2500 births)
Two smaller openings located behind the greater Palatine Foramen in the posterior region of the hard palate
Wings of the sphenoid bone

43. Attached Gingiva
Where the proximal sides of two teeth come together and touch
Extends from the mucogingival junction to the gingival groove
Occurs in unusual ways and distorted crowns may appear
Responsible for laying down the enamel matrix into place

44. Frenum
Calcium salts are deposited into formed tooth
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip
An overgrowth of the gingival tissue
Forms the remaining 2/3 of the hard and soft palate uvula

45. Facial Vein
Cells that form cementum
Two smaller openings located behind the greater Palatine Foramen in the posterior region of the hard palate
Drains the facial structures beginning near the eye and descending toward the mandible
Constricts the nasopharyngeal passage and elevates the larynx

46. Which molar is the wisdom tooth
Supportive fibers that anchor the tooth to the bone
Maxillary third molar
Fifth cusp located on the mesial surface lingual surface of maxillary first molars
Occurs in unusual ways and distorted crowns may appear

47. Function of Geneoglossus?
The ridges that run horizontally across the hard palate behind the incisive papilla
Retracts or depresses the tongue
Vertical groove on the midline of the upper lip
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged

48. What are the two muscles of the soft palate?
Curve outward
Retracts or depresses the tongue
Origin of the tooth
Palatoglossus - palatopharyngeal

49. When do the primary teeth begin erupting and are fully erupted?
2 to 3 pints
Supplies blood to the brain and the eyes
Ligaments and muscles of mastication
6 months/3years

50. Primary Dentin
Forms the bulk of the tooth
Molaris meaning millstone
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue
4th week