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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. Cleft Palate
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
Set of arches found farther in the back of the throat
Band of fibrous tissue which attaches bone to bone

2. Imbracation Lines
Lining covers inside of the oral cavity
Canal or passage for fluid
Small curved lines that run parellel to the CEJ
Secrete saliva to assist in process of digestion

3. Attached Gingiva
Respiratory system - digestive system and glandular organs
Small raised projections where taste buds are located
Extends from the mucogingival junction to the gingival groove
Middle line of the teeth

4. How many cusps/ roots do the maxillary first molars have?
Indented
When the tissue becomes inflamed
Supportive fibers that anchor the tooth to the bone
4/5 cusps/ 3 roots

5. Mesial
The inner surface of the lips
The bone that separates the root on a tooth
An overgrowth of the gingival tissue
Surface towards the midline

6. Labial Mucosa
Acts as anchors between the alveolar bone and the tooth
Primary and permanent
The inner surface of the lips
Ala of the nose - naso-labial groove - philtrum - vermilion border - vermilion zone - turbercle of the lip - labial commissures - labio-mental grooves

7. What are the 4 taste senses and where are they located?
Developmental segment of a tooth
The crown of the tooth that is nearest the incisal edge near the anterior tooth
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue
Circle and tighten the gingival margin around the neck of the tooth

8. Inferior Nasal Conchae
Scroll like bones outside the nasal cavaties
Oval structures that are located on the dorsal surface of the tongue
Curve outward
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip

9. Lesser Palatine Foramen
Initiation of the tooth begins
Portion of the root seen in the oral cavity
Two smaller openings located behind the greater Palatine Foramen in the posterior region of the hard palate
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

10. Proliferation
Where the ectoderm layer matures into the enamel
The largest of three openings located in the posterior region of the hard palate
Genioglossus - hyoglossus - styloglossus - palatoglossus
Creates the wall of the dentinal tubule

11. How many cusps/ roots do the 2/3rd maxillary molars have?
Elevated are of enamel that forms the Mesial and distal borders
Divides the crown and the root
Trigeminal - facial - glossopharyngeal - hypoglossal
Three cusps/ trifurcated

12. External Jugular Vein
2 to 3 pints
Drains the superficial veins of the face and neck into the subclavian vein
Bony projection found on the bottom border of the temporal bone
Developmental segment of a tooth

13. Cervical Third
The area on the crown of the tooth that is nearest the gingival
A pocket formed by the soft tissue of cheeks and gingiva
Used to pulverize food
A line of tissue that extends from the tongue to the floor of the mouth

14. Mesenchyme Tissue
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged
Primary embryonic mesoderm layer that develops during the morpho differentiation period
Genioglossus - hyoglossus - styloglossus - palatoglossus
Mildest form of cleft palate

15. Torus
Small head - low nasal bridge - thin upper lip - small mandible
Excess bone in the middle of the palate
Two cortical bone plates that come together between each tooth
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue

16. Succedaneous teeth
Permeante teeth replace the primary teeth
Excess dryness of the mouth
Covering over the enamel that is left over from the epithelium ameloblasts
Supplies blood to the face and oral cavity

17. Palatine Raphe
Greater - lesser - naso palatine nerves
The slightly raised line extending down the middle of the hard palate
Middle line of the teeth
H20 - mucin - organic salts and digestive enzymes

18. Interdental Gingiva
An extension of an unattached gingiva and the tooth
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars
Resulting from an imperfect union where the lobes come together
Teeth will not erupt in proper position

19. Cyto differentiation
Ala of the nose - naso-labial groove - philtrum - vermilion border - vermilion zone - turbercle of the lip - labial commissures - labio-mental grooves
Largest papilla - mushroom shaped and are anterior to the sulcus terminalis in a row of 8 to 10
The development of different cells
The fixed attachment of a muscle

20. Vermilion Border
Incremental line indicating trauma of birth
Synovial fluid
Portion of the lips where the skin meets the vermilion zone
6 months/3years

21. Attrition
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
Wearing away of the incisal or occlusal surfaces of the tooth
2 small raised folds of tissue where the lingual frenum attaches
Moves the head backward and laterally

22. What is the smallest tooth in dentition?
Maxillary third molar
The fixed attachment of a muscle
Mandibular central incisors
Moves the head backward and laterally

23. Apposition
Assist in the movement and functioning of the tongue
Pulverizing or chewing surface
Calcium salts are deposited into formed tooth
Primary and permanent

24. Function of mylohyoid
Assist in depressing the mandible and elevating the tongue
Calcium salts are deposited into formed tooth
Origin - fixed point - insertion - movable point
Draws down the mandible and corners of the mouth

25. Sublingual Sulcus
A horseshoe shaped groove that follow the curve of the dental arch
Union of two triangular ridges that produce a single ridge of elevation that cross the occlusal surface of posterior teeth
Conception thru the first two weeks
Interdental ligament

26. Internal Jugular Vein
Joined at the midline and are often referred to as the median Palatine suture
Middle two teeth in the mouth
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein
Middle line of the teeth

27. Intertubular Dentin
Dentin found between the tubules
Middle two teeth in the mouth
Teeth will not erupt in proper position
Narrow long enamel tuft

28. Pit
Indented
Shaping the tongue during speech - mastication and swallowing
Place where the groove comes together or fissures cross
32

29. Secondary Dentin
Forms after the completion of the apical foramen
Origin - fixed point - insertion - movable point
Pointed elongations of the pulp
Largest facial bone with two sections joined at the median suture

30. When do the primary teeth begin erupting and are fully erupted?
Forms into dentin - cementum and pulp of the teeth
A raised white line that runs parallel to where the teeth meet on the buccal mucosa
An overgrowth of the gingival tissue
6 months/3years

31. Torus Mandibularis
Supplies blood to the temporal muscle - masseter muscle - pterygoid muscle and buccanator
Temporal muscles - masseter muscles - internal pterygoid muscles - external pterygoid muscles
Excess bone formations under the tongue on the alvellar bone
Lower arch of the teeth

32. Parotid Papilla
Vertical groove on the midline of the upper lip
A flap of tissue on the on the buccal mucosa
4th week
The mandibular first premolar

33. Posterior Teeth
Surface away from the midline
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle
The area on the crown of the tooth that is nearest the gingival
The teeth located at the back of the mouth

34. Mandibular Foramen
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth
Intervates the anterior maxillary sinus - gingiva - cuspids - laterals - and central incisors
Constricts the nasopharyngeal passage and elevates the larynx
Located on the inside of the body of the ramus

35. What teeth do the deciduous (baby) tooth not include?
Small linear depression
Extends from the mucogingival junction to the gingival groove
No bicuspids/ no 3rd molars
Located in a depressed area between the pillars

36. Nasal-Labial Groove
Linear elevation of the tooth
A faint line going from the ala of the nose to the corner of the mouth
Smaller branch that ennervates the soft palate uvula and tonsils
Ligaments and muscles of mastication

37. What is saliva made of?
Small head - low nasal bridge - thin upper lip - small mandible
Resists intrusive forces that try to push the tooth inwards
H20 - mucin - organic salts and digestive enzymes
Full deep rich sound in nasal cavity

38. If a patient receives toxic agents - how long does it take for their sense of taste to return?
Extends from the medial corner of the eye to the nasal cavity
Small curved lines that run parellel to the CEJ
Separates the developing oral cavities from the nasal cavities
10 days

39. Dentinal Tubules
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue
Band of fibrous tissue which attaches muscle to bone
Tubules that pass through the entire surface of the dentin
9 months (5 months ultrasound to tell sex)

40. Peg lateral
Maxillary third molar
Largest of the branches of the external carotid artery; supplies facial structure
Extends interiorly from the pterygopalatine nerve and exits thru the incisive foramen
Peg shaped crown with a smooth surface

41. Mylohyoid Nerve Branch
Supplies blood to the roots and periodontal ligaments of the interior teeth
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle
Three cusps/ trifurcated
Occurs in unusual ways and distorted crowns may appear

42. Function of Geneoglossus?
Retracts or depresses the tongue
Short tubules that seem to crossover to the enamel
Maxillary first molar
The inner surface of the lips

43. Interdental Septum
Triferacated
Largest division of the trigeminal nerve
A bony projection that separates each socket
6 months/3years

44. Muscle origine
Assist in depressing the mandible and elevating the tongue
The fixed attachment of a muscle
The first predentin that is formed and matures within the tube
Upper arch of the teeth

45. Dentogingival Fiber Groups
Developmental segment of a tooth
Bi-cuspids
Triferacated
Act to maintain the gingival integrity of the marginal gingiva

46. Pulp Stones
The mandibular first premolar
Clear fluid secreted by the salivary and mucous glands throughout the mouth
Calcified masses of dentin
Mastication - aids in speech - influence facial structure - chewing surfaces

47. Lingual Foramen
The internal surface at the center of the mandible
Week 11
Small grooves noted on some teeth
Moves the head backward and laterally

48. Rod Core
Maxillary first molar
Small dark brushes
Inner portion of the enamel rod
Molars

49. How many cusps/ roots do the 2/3rd mandibular molars have?
Place where the groove comes together or fissures cross
4 cusps/ bifurcated
The internal surface at the center of the mandible
Smaller - enamel thicker - pulp chamber is larger is larger - bifurcation wider

50. Imbrication lines
Slight ridges on the cervical third of certain teeth that extend mesiodistally
10 days
A raised white line that runs parallel to where the teeth meet on the buccal mucosa
Peg shaped crown with a smooth surface