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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. Internal Carotid Artery
Full deep rich sound in nasal cavity
A duct that empties into the mouth thru the parotid papilla - Parotid gland goes with Stensen's duct
Supplies blood to the brain and the eyes
Retracts or depresses the tongue

2. Vestibule Fornix
Forms the bulk of the tooth
A concave area where two bones of the mandible are fused in the center of the mandible on the external surface
Supplies blood to the face and oral cavity
The deepest point of the vestibule

3. Mental Nerve Branch
Act to maintain the gingival integrity of the marginal gingiva
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
Biting edge of the teeth
Largest division of the trigeminal nerve

4. Oblique Fiber Group
A rounded area beyond the last posterior maxillary tooth
Two smaller openings located behind the greater Palatine Foramen in the posterior region of the hard palate
Resists intrusive forces that try to push the tooth inwards
Begin at the caruncles on either side of the frenum and run backward to the base of the tongue

5. Nasal-Labial Groove
Small linear depression
A faint line going from the ala of the nose to the corner of the mouth
An extension of an unattached gingiva and the tooth
12 years

6. Resonance
The teeth located at the back of the mouth
Used to pulverize food
Of or pertaining to area surrounding naval cavity
Full deep rich sound in nasal cavity

7. Gingival Sulcus
Third tooth from the midline
Growth from the oral epithelium that gives rise to the tooth buds
Radiates from the developmental groove
The space between the unattached gingiva and the tooth

8. How many teeth are in the Primary teeth?
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx
The cornerstone of the mouth
Ligaments and muscles of mastication
20

9. Interdental Gingiva
Smaller - enamel thicker - pulp chamber is larger is larger - bifurcation wider
A shallow v-shaped depression located below the bottom of the nose and above the lips
Third tooth from the midline
An extension of an unattached gingiva and the tooth

10. Middle Superior Alveolar Nerve
Band of fibrous tissue which attaches muscle to bone
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids
Indented

11. Posterior Teeth
Begin at the caruncles on either side of the frenum and run backward to the base of the tongue
Oval depression of temporal bone in condyloid process
The teeth located at the back of the mouth
Triferacated

12. Occlusal
Trigeminal - facial - glossopharyngeal - hypoglossal
Forms after the completion of the apical foramen
Pulverizing or chewing surface
Glands the size of a walnut that lie on the inside of the mandible and empty saliva into the mouth thru the Wharton's duct

13. Cementoblast
When the dentin is exposed
Vertical groove on the midline of the upper lip
Cells that form cementum
Exits the mandibular canal at the mental foramen and supplies the chin and lower lip

14. What is the most common problem with TMJ
The disc becomes displaced
Short tubules that seem to crossover to the enamel
Origin - fixed point - insertion - movable point
Two smaller openings located behind the greater Palatine Foramen in the posterior region of the hard palate

15. Epithelial Attachment
Initiation of the tooth begins
Upper arch of the teeth
The gingiva in the floor of the gingival sulcus that attaches to the enamel
Tissue fluid surrounding the cell membrane of the odontoblast

16. What is saliva made of?
Acts as anchors between the alveolar bone and the tooth
H20 - mucin - organic salts and digestive enzymes
Cells develop into different tissues
To bulge of curve outward

17. How much saliva is produced daily?
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle
The largest of the salivary glands which lie just below and in front of the ear
1500 millimeters
Supplies blood to the temporal muscle - masseter muscle - pterygoid muscle and buccanator

18. External Auditory Meatus
Opening for the ear
A bony plate covered with keratinized tissue located in the anterior portion of the palate
When the dentin is exposed
Forms after the completion of the apical foramen

19. What are the largest and strongest of the mandibular teeth
Responsible for laying down the enamel matrix into place
The ridges that run horizontally across the hard palate behind the incisive papilla
A bony plate covered with keratinized tissue located in the anterior portion of the palate
The mandibular molars

20. Labial Mucosa
Supplies blood to the roots and periodontal ligaments of the interior teeth
Oval structures that are located on the dorsal surface of the tongue
The inner surface of the lips
Raised vertical folds of tissue on the lateral border of the tongue

21. Posterior Tonsillar Pillar
Portion of the lips that are red
Set of arches found farther in the back of the throat
Inside surface Which is towards the tongue - on anterior teeth
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein

22. Ligament
Band of fibrous tissue which attaches bone to bone
Cut - tear - and grind food
Tubules that pass through the entire surface of the dentin
Separates the developing oral cavities from the nasal cavities

23. Osteoclasts
Two
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged
The slightly raised line extending down the middle of the hard palate
A pocket formed by the soft tissue of cheeks and gingiva

24. Lamina Dura
Portion covered with cementum
Study of prenatal growth and the developing process of an individual
A line that represents the alveolus bone lining the socket
Extreme variations from the norm

25. Evanesce
Resists intrusive forces that try to push the tooth inwards
To dissolve
Primary and permanent
Union of two triangular ridges that produce a single ridge of elevation that cross the occlusal surface of posterior teeth

26. Ameloblast
The internal surface at the center of the mandible
Formed by the uniting of lobes during development of crown
Enamel forming cells
Inside surface Which is towards the tongue - on anterior teeth

27. Incisal Edge
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
Biting edge of the teeth
Functions the same as the alveolar cfg; originate in alveolar bone
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx

28. Incisal third
Dividing point of a multi-rooted tooth
Located behind the ramus of the mandible and branches into five arteries
Cells develop into different tissues
The crown of the tooth that is nearest the incisal edge near the anterior tooth

29. Fimbriated Folds
Small dark brushes
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged
Folds of tissue to the the lingual veins
Two

30. Buccal Mucosa
Portion of the lips that are red
The inner surface of the cheeks
The inner surface of the lips
Distends the ramus - enters the mandibular foramen and bifurcates around the first premolar tooth to form the incisive and the mental arteries

31. Maxillary Artery
A projection that extends off the back of the soft palate
Inside of the maxillary teeth
Largest of the branches of the external carotid artery; supplies facial structure
Draws down the mandible and corners of the mouth

32. Anatomical root
Conception thru the first two weeks
Where the ectoderm layer matures into the enamel
Covers muscle tissue in the posterior portion of the palate
Portion covered with cementum

33. Submandibular Glands

34. Function of Geneoglossus?
When cells rapidly increase in number
Inside of the maxillary teeth
Retracts or depresses the tongue
Cells that form dentin

35. Landmarks
Band of fibrous tissue which attaches muscle to bone
Forms a large cavity above the roots of the maxillary molars
Skeletal or soft tissue structures used as reference points in describing locations of anatomical structures or taking measurements
Portion of the root seen in the oral cavity

36. What is the purpose of saliva?
The tip of the chin
Supplies blood to the roots and periodontal ligaments of the interior teeth
To lubricate the oral cavity and to moisten food
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle

37. If a patient receives toxic agents - how long does it take for their sense of taste to return?
10 days
A bony projection that separates each socket
Growth from the oral epithelium that gives rise to the tooth buds
Separation of the upper lip ( 1 of 1000 live births)

38. Alveolar Crest
The area on the crown of the tooth that is nearest the gingival
Two cortical bone plates that come together between each tooth
Allow flexibility during mastication - speech
Extends from the medial corner of the eye to the nasal cavity

39. Calcification
Located behind the ramus of the mandible and branches into five arteries
Constricts the nasopharyngeal passage and elevates the larynx
The cornerstone of the mouth
Layers of tooth tissue become calcified

40. Enamel Lamellae
Narrow long enamel tuft
Band of fibrous tissue which attaches muscle to bone
Enamel is thinner - pulp chamber is smaller -
Dividing point of a multi-rooted tooth

41. Gums
Disk that acts like a cushion between the temporal bone and the condyloid process
The line of demarcation between the attached gingiva and the marginal gingiva
Tissue covering the alveolar processes
Acts as anchors between the alveolar bone and the tooth

42. Mylohyoid Nerve Branch
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle
Molaris meaning millstone
Assist in depressing the mandible and elevating the tongue
The largest of the salivary glands which lie just below and in front of the ear

43. What are the extrinsic muscles of the tongue responsible for?
Small linear depression
Mildest form of cleft palate
Branches off the inferior alveolar artery before intering the mandibular canal
Assist in the movement and functioning of the tongue

44. Parotid Papilla
Linear elevation of the tooth
The development of different forms
Excess bone in the middle of the palate
A flap of tissue on the on the buccal mucosa

45. Alveolar Mucosa
Resists forces that try to pull the tooth outward
The space between the unattached gingiva and the tooth
Mucosa that covers the alveolar bone
The cornerstone of the mouth

46. Lingual Vein
Three bulges on the incisal edge
Bony projection found on the bottom border of the temporal bone
Function to resist rotational forces and tilting
Drains the floor of the mouth

47. What are the characteristics of permanent teeth?
Draws the hyoid bone superiorly and posteriorly and stabilizes it
Clear fluid secreted by the salivary and mucous glands throughout the mouth
Enamel is thinner - pulp chamber is smaller -
Function to resist rotational forces and tilting

48. Cleft Palate
More common in girls--the failure of the palatal shelves to fuse with the primary palate (1 in 2500 births)
Assist in the movement and functioning of the tongue
Where the ectoderm layer matures into the enamel
Band of fibrous tissue which attaches muscle to bone

49. Salivary Glands
Secrete saliva to assist in process of digestion
Smaller - enamel thicker - pulp chamber is larger is larger - bifurcation wider
Separation of the upper lip ( 1 of 1000 live births)
Developmental segment of a tooth

50. What are the characteristics of deciduous teeth?
Smaller - enamel thicker - pulp chamber is larger is larger - bifurcation wider
Teeth after cuspids
Corners of the mouth
Small bony projections surrounding the lingual foramen