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Dental Assisting: Head And Neck Anatomy

Subjects : health-sciences, dentistry

Instructions:

Answer 50 questions in 15 minutes.
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Match each statement with the correct term.
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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. What are the 12 landmarks of the oral cavity?

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2. Cervical line
Divides the crown and the root
A bat shaped bone which forms the anterior portion of the skull
Sharp projection on the under surface of the temporal bone
The moveable attachment of the muscle

3. Intercellular Substances
Where the proximal sides of two teeth come together and touch
Dentin found between the tubules
Substances between cells
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface

4. Dentinal Hypersensitivity
When the dentin is exposed
Assist in depressing the mandible and elevating the tongue
Follows the inside of the ramus and the body of the mandible
Quarters of the teeth

5. Histo Differentiation
Band of fibrous tissue which attaches bone to bone
Cells develop into different tissues
The groove below the lower lips that separates the lips from the chin
The deepest point of the vestibule

6. What are the largest and strongest of the mandibular teeth
Buccal - lingual - and inferior alveolar
The mandibular molars
Covering over the enamel that is left over from the epithelium ameloblasts
To dissolve

7. When do the tooth buds appear?
Week 11
Convex area on the lingual surface near gingiva
Duct located on the parotid papilla
Cut - tear - and grind food

8. How much saliva do the salivary glands produce in 24 hours?
Primitive mouth
Resulting from an imperfect union where the lobes come together
2 to 3 pints
Act to maintain the gingival integrity of the marginal gingiva

9. Histo Differentation
Oval depression of temporal bone in condyloid process
The development of different tissues
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip
When the dentin is exposed

10. Imbritation Lines of Von Eboner
Incremental line indicating trauma of birth
Place where the groove comes together or fissures cross
Stained growth rings in dentin
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx

11. What is saliva made of?
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
Small head - low nasal bridge - thin upper lip - small mandible
Cheek bones--the most breakable bone in the body
H20 - mucin - organic salts and digestive enzymes

12. Anatomical root
A dense tissue covered with mucous membrane that can withstand chewing
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle
Portion covered with cementum
Raised vertical folds of tissue on the lateral border of the tongue

13. Pulpitis
Resists intrusive forces that try to push the tooth inwards
Excess bone in the middle of the palate
When the tissue becomes inflamed
Elevated are of enamel that forms the Mesial and distal borders

14. Purpose of premolars
Papillae that give the tongue the strawberry effect
Used to pulverize food
Resulting from an imperfect union where the lobes come together
The study of the microscopic structure and functions of tissues

15. What is the longest tooth in the mandibular arch?
The development of different forms
Surface towards the midline
Supplies the gingival - maxillary sinus - cheeks - and maxillary molars with the exception of the mesial buccal root of the first molar
The mandibular first premolar

16. What is another name for premolars?
Bi-cuspids
Intervates the anterior maxillary sinus - gingiva - cuspids - laterals - and central incisors
The crown of the tooth that is nearest the incisal edge near the anterior tooth
Wearing away of the incisal or occlusal surfaces of the tooth

17. What are the 3 branches of the mandibular nerve branch?
Papillae that give the tongue the strawberry effect
Largest papilla - mushroom shaped and are anterior to the sulcus terminalis in a row of 8 to 10
The largest of the salivary glands which lie just below and in front of the ear
Buccal - lingual - and inferior alveolar

18. Marginal GIngiva
Causes a thickening of the cementum around the apex
Excess bone formations under the tongue on the alvellar bone
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth
(free gingiva) surrounds the teeth

19. Fimbriated Folds
Oval structures that are located on the dorsal surface of the tongue
Supplies blood to the face and oral cavity
Corners of the mouth
Folds of tissue to the the lingual veins

20. Primary palate
Separates the developing oral cavities from the nasal cavities
The mandibular first premolar
Triangular space in the gingival direction when two adjacent teeth are in contact
Pulverizing or chewing surface

21. Central Incisor
The development of different cells
To lubricate the oral cavity and to moisten food
Middle two teeth in the mouth
Aid in attaching the gingiva to the alveolar bone

22. What is the smallest tooth in dentition?
Three bulges on the incisal edge
Primary embryonic mesoderm layer that develops during the morpho differentiation period
Mandibular central incisors
A small projection in the middle of the upper lip

23. When do the primary teeth begin erupting and are fully erupted?
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
A rounded area beyond the last posterior maxillary tooth
Outside surface Which is towards the lips
6 months/3years

24. Gland
Developmental segment of a tooth
Cluster of tissue that manufactures and secrets fluid
The fixed attachment of a muscle
Wearing away of the incisal or occlusal surfaces of the tooth

25. Vestibule Fornix
The deepest point of the vestibule
Surface away from the midline
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars
A rounded area beyond the last posterior maxillary tooth

26. Odontoblast
Trigeminal - facial - glossopharyngeal - hypoglossal
Responsible for laying down the enamel matrix into place
Cells that form dentin
Enamel is thinner - pulp chamber is smaller -

27. What are the extrinsic muscles of the tongue responsible for?
A duct that empties into the mouth thru the parotid papilla - Parotid gland goes with Stensen's duct
Assist in the movement and functioning of the tongue
Enamel forming cells
Origin - fixed point - insertion - movable point

28. Intertubular Dentin
Bicuspids
Dentin found between the tubules
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone
The development of different tissues

29. Median Sulcus
What divides the tongue in half and runs from the base to the tip of the tongue
Mastication - aids in speech - influence facial structure - chewing surfaces
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids
Smaller - enamel thicker - pulp chamber is larger is larger - bifurcation wider

30. Muscle Insertion
The moveable attachment of the muscle
Opening for the ear
Trigeminal - facial - glossopharyngeal - hypoglossal
Lower arch of the teeth

31. Alveolar Crest Fiber Group
Function to resist rotational forces and tilting
Forms the remaining 2/3 of the hard and soft palate uvula
A duct that empties into the mouth thru the parotid papilla - Parotid gland goes with Stensen's duct
Supplies blood to the roots and periodontal ligaments of the molars and premolars

32. Where is the palate located?
Inside of the maxillary teeth
Indented
Small dark brushes
A condition where the lower frenum attachment is very short/DDS/frenectomy

33. Function of Hyoglossus
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids
Depresses the tongue
Portion of the lips that are red
Developmental segment of a tooth

34. Periodontium
Conception thru the first two weeks
4 cusps/ bifurcated
Tissue covering the alveolar processes
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone

35. Function of Platysma
Inner portion of the enamel rod
Shaping the tongue during speech - mastication and swallowing
Shed from the oral cavity
Draws down the mandible and corners of the mouth

36. Function of Styloglossus
Retracts the tongue and raises the tip of the tongue
Orbicularis oris - buccinator - mentalis - zygomatic major
Shed from the oral cavity
Union of two triangular ridges that produce a single ridge of elevation that cross the occlusal surface of posterior teeth

37. Palatine Raphe
Raised vertical folds of tissue on the lateral border of the tongue
Acts as anchors between the alveolar bone and the tooth
The slightly raised line extending down the middle of the hard palate
Elevates the posterior portion of the tongue and narrows the fauces

38. How is the TMJ supported and what controls their movement?
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone
Bifurcated/ 5 cusps
Incremental lines around the layers of the enamel matrix
Ligaments and muscles of mastication

39. Hard Palate
Enamel is thinner - pulp chamber is smaller -
A bony plate covered with keratinized tissue located in the anterior portion of the palate
Digstric - Mylohyoid - stylohyoid - geniohyoid
Supportive fibers that anchor the tooth to the bone

40. Mental Nerve Branch
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip
H20 - mucin - organic salts and digestive enzymes
A small projection in the middle of the upper lip
Largest division of the trigeminal nerve

41. Gingival Hyperplasia
An overgrowth of the gingival tissue
Compact bone plate of the facial and lingual surfaces
To lubricate the oral cavity and to moisten food
Primitive mouth

42. Mucosa
Secrete saliva to assist in process of digestion
Lining covers inside of the oral cavity
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged
9 months (5 months ultrasound to tell sex)

43. Quadrants
Assist in the movement and functioning of the tongue
Calcium salts are deposited into formed tooth
Wearing away of the incisal or occlusal surfaces of the tooth
Quarters of the teeth

44. Mesenchyme Tissue
Primary embryonic mesoderm layer that develops during the morpho differentiation period
Pointed or rounded mounds on the crown of the tooth
The inner surface of the cheeks
The groove below the lower lips that separates the lips from the chin

45. Sublingual Caruncles
The largest of three openings located in the posterior region of the hard palate
2 small raised folds of tissue where the lingual frenum attaches
Chewing and swallowing food
A rounded area beyond the last posterior maxillary tooth

46. Fungiform Papillae
A horseshoe shaped bone lying at the base of the tongue--all the muscles of the tongue and the floor of the mouth attach to this bone
Papillae that give the tongue the strawberry effect
Teeth after cuspids
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

47. Alveolar Mucosa
Bifurcated/ 5 cusps
Mucosa that covers the alveolar bone
Assist in depressing the mandible and elevating the tongue
When the surface of the teeth becomes grooved

48. Uvula
Maxillary first molar
Full deep rich sound in nasal cavity
A rounded area beyond the last posterior maxillary tooth
A projection that extends off the back of the soft palate

49. Greater Palatine Nerve
Small raised projections where taste buds are located
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth
Biting edge of the teeth
An overgrowth of the gingival tissue

50. Incisive Nerve branch
Forms the remaining 2/3 of the hard and soft palate uvula
Cells From which connective tissue evolve
Intervating the anterior teeth and the labial gingiva
An overgrowth of the gingival tissue