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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. Philtrum
Palatoglossus - palatopharyngeal
Function to resist rotational forces and tilting
A shallow v-shaped depression located below the bottom of the nose and above the lips
Band of fibrous tissue which attaches muscle to bone

2. Muscle Insertion
The moveable attachment of the muscle
Two cortical bone plates that come together between each tooth
Excess bone formations under the tongue on the alvellar bone
A bony plate covered with keratinized tissue located in the anterior portion of the palate

3. Xygote
When cells rapidly increase in number
A line of demarcation between the attached gingiva and alveolar mucosa
Origin - fixed point - insertion - movable point
Short tubules that seem to crossover to the enamel

4. Anterior Tonsillar Pillar
The study of the microscopic structure and functions of tissues
Folds of tissue that extend horizontally from the uvula to the base of the tongue
Resist rotational forces and hold teeth in inter-proximal contact
Pulverizing or chewing surface

5. Angle of the Mandible
To dissolve
Where the ramus meets the body of the mandible on the outside border
Maxillary first molar
Covering over the enamel that is left over from the epithelium ameloblasts

6. Tome's process
Located behind the ramus of the mandible and branches into five arteries
Responsible for laying down the enamel matrix into place
Bluish veins that run the length of the tongue
The bone that separates the root on a tooth

7. Mylohyoid Artery
Indented
Small raised projections where taste buds are located
The cornerstone of the mouth
Branches off the inferior alveolar artery before intering the mandibular canal

8. Cyto differentiation
Drains the maxiallary artery and superficial temporal arteries
Narrow long enamel tuft
The development of different cells
Covers muscle tissue in the posterior portion of the palate

9. Attrition
Wearing away of the incisal or occlusal surfaces of the tooth
Two
Where the proximal sides of two teeth come together and touch
The largest of the salivary glands which lie just below and in front of the ear

10. Sharpey's Fibers
Supplies blood to the temporal muscle - masseter muscle - pterygoid muscle and buccanator
Band of fibrous tissue which attaches muscle to bone
Acts as anchors between the alveolar bone and the tooth
Triangular space in the gingival direction when two adjacent teeth are in contact

11. Midline
20
Middle line of the teeth
Resist rotational forces and hold teeth in inter-proximal contact
Largest papilla - mushroom shaped and are anterior to the sulcus terminalis in a row of 8 to 10

12. Fibroblasts
The development of different cells
Two
Cells From which connective tissue evolve
Functions the same as the alveolar cfg; originate in alveolar bone

13. Mucogingival Junction
Union of two triangular ridges that produce a single ridge of elevation that cross the occlusal surface of posterior teeth
The fixed attachment of a muscle
A line of demarcation between the attached gingiva and alveolar mucosa
Tooth emerges from gum tissue and becomes visible

14. Pulp Stones
Calcified masses of dentin
Natural teeth in position
Growth from the oral epithelium that gives rise to the tooth buds
Creates the wall of the dentinal tubule

15. Cleft Palate
Located in a depressed area between the pillars
Third tooth from the midline
More common in girls--the failure of the palatal shelves to fuse with the primary palate (1 in 2500 births)
Lining covers inside of the oral cavity

16. Eruption
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue
Tooth emerges from gum tissue and becomes visible
Band of fibrous tissue which attaches muscle to bone
Mastication - aids in speech - influence facial structure - chewing surfaces

17. Free Gingiva
Found only in multi-rooted teeth and resists rotational forces
A flap of tissue on the on the buccal mucosa
The portion of the tooth that meets the gingiva
Bifurcated/ 5 cusps

18. Interradical Fiber Group
Found only in multi-rooted teeth and resists rotational forces
Maxillary third molar
A bat shaped bone which forms the anterior portion of the skull
Dividing point of a multi-rooted tooth

19. Marginal GIngiva
Slight ridges on the cervical third of certain teeth that extend mesiodistally
(free gingiva) surrounds the teeth
Arteries supplying blood to most of the head and the neck
20

20. Function of Hyoglossus
The mandibular molars
Drains the superficial veins of the face and neck into the subclavian vein
Scroll like bones outside the nasal cavaties
Depresses the tongue

21. Lamina Dura
6 months/3years
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
A line that represents the alveolus bone lining the socket
To bulge of curve outward

22. What is the longest tooth in the mandibular arch?
4/5 cusps/ 3 roots
The mandibular first premolar
Buccal - lingual - and inferior alveolar
Also known as meniscus it is a dense fibrous connective tissue that is thicker at the ends and attached to the condyle

23. Central Incisor
Middle two teeth in the mouth
Ligaments and muscles of mastication
Tissue covering the alveolar processes
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

24. Secondary Dentin
Forms into dentin - cementum and pulp of the teeth
10 days
Forms after the completion of the apical foramen
A junction or center of veins that directly or indirectly drain a vast area

25. Duct
10 days
An enclosed area that matures into dentin - cementum and pulp
Supplies blood to the roots and periodontal ligaments of the interior teeth
Canal or passage for fluid

26. Fungiform Papillae
A triangular area located behind the last molar
The development of different tissues
Cells that form cementum
Papillae that give the tongue the strawberry effect

27. Landmarks
Skeletal or soft tissue structures used as reference points in describing locations of anatomical structures or taking measurements
Formed by the uniting of lobes during development of crown
Study of the structure and form of the teeth
The inner surface of the cheeks

28. Proliferation
Supplies blood to the brain and the eyes
Cells develop into different tissues
The fixed attachment of a muscle
Where the ectoderm layer matures into the enamel

29. Enamel Spindle
Short tubules that seem to crossover to the enamel
Forms into dentin - cementum and pulp of the teeth
Drains the Pterygoid plexus of the veins
Where the ramus meets the body of the mandible on the outside border

30. Develop Mental Groove
Formed by the uniting of lobes during development of crown
The layer of dentin that surrounds the pulp
Conception thru the first two weeks
Circle and tighten the gingival margin around the neck of the tooth

31. Where is the palate located?
The gingiva in the floor of the gingival sulcus that attaches to the enamel
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged
Inside of the maxillary teeth
Indented

32. Histo Differentation
Smaller branch that ennervates the soft palate uvula and tonsils
The development of different tissues
A raised white line that runs parallel to where the teeth meet on the buccal mucosa
Mildest form of cleft palate

33. Primary Dentin
Two vertical extensions of the mandible
Cut - tear - and grind food
Forms the bulk of the tooth
Retracts the tongue and raises the tip of the tongue

34. Palatine Raphe
A period of both primary teeth and permeant teeth are in the dentition
Small yellowish glands on the labial mucosa
The slightly raised line extending down the middle of the hard palate
A triangular area located behind the last molar

35. Labial Mucosa
The ridges that run horizontally across the hard palate behind the incisive papilla
A pocket formed by the soft tissue of cheeks and gingiva
The inner surface of the lips
Occurs in unusual ways and distorted crowns may appear

36. Zygomatic nerve
Supplies the gingival - maxillary sinus - cheeks - and maxillary molars with the exception of the mesial buccal root of the first molar
Innervates the orbicular oculi - the area around the eye - and the area around and behind the zygomatic arch
Outside surface Which is towards the cheek - on posterior teeth
Largest division of the trigeminal nerve

37. Cemental Spurs
Digstric - Mylohyoid - stylohyoid - geniohyoid
Found near the cementoenamel junction
The inner surface of the lips
The portion of the tooth that meets the gingiva

38. Soft Palate
Covers muscle tissue in the posterior portion of the palate
The disc becomes displaced
The study of the microscopic structure and functions of tissues
Cells that form cementum

39. Torus Mandibularis
Excess bone formations under the tongue on the alvellar bone
Interdental ligament
Divides the crown and the root
Slight ridges on the cervical third of certain teeth that extend mesiodistally

40. Function of Digastric
Retracts or depresses the tongue
Forms into the inner lining of the oral cavitiy and enamel of the teeth
A line of demarcation between the attached gingiva and alveolar mucosa
Lift the hyoid bone and assist in opening the mouth

41. How many teeth are in the Primary teeth?
Papillae that give the tongue the strawberry effect
20
Third tooth from the midline
A raised area of tissue laying behind the maxillary central incisors on the hard palate

42. Xerostomia
Excess dryness of the mouth
Set of arches found farther in the back of the throat
Secrete saliva to assist in process of digestion
Formed by the uniting of lobes during development of crown

43. Gingiva
The bone that separates the root on a tooth
A dense tissue covered with mucous membrane that can withstand chewing
The tip of the chin
Respiratory system - digestive system and glandular organs

44. Pterygoid plexus of the veins
2 small raised folds of tissue where the lingual frenum attaches
A junction or center of veins that directly or indirectly drain a vast area
Forms after the completion of the apical foramen
The largest of three openings located in the posterior region of the hard palate

45. When do oral and nasal cavity separate and palate develop?
Week 12
Full deep rich sound in nasal cavity
Study of the structure and form of the teeth
A line of demarcation between the attached gingiva and alveolar mucosa

46. Circumpulpal Dentin
Where the ectoderm layer matures into the enamel
The layer of dentin that surrounds the pulp
Lining covers inside of the oral cavity
Supportive fibers that anchor the tooth to the bone

47. Incisive Nerve branch
Intervating the anterior teeth and the labial gingiva
A rounded area beyond the last posterior maxillary tooth
Cells From which connective tissue evolve
More common in girls--the failure of the palatal shelves to fuse with the primary palate (1 in 2500 births)

48. What is the largest cranial nerve and the most important to dental auxillaries and why?
The mandibular first premolar
Joined at the midline and are often referred to as the median Palatine suture
Trigeminal nerve--because it ennervates the maxilla and the mandible
Greater - lesser - naso palatine nerves

49. Buccal
A rounded area beyond the last posterior maxillary tooth
An extension of an unattached gingiva and the tooth
Outside surface Which is towards the cheek - on posterior teeth
When cells rapidly increase in number

50. What are the two ways the TMJs move?
Drains the Pterygoid plexus of the veins
6 years old
Maxillary first molar
Hinge motion and gliding movement