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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 ligament is retained the longest during periodontal disease?
Orbicularis oris - buccinator - mentalis - zygomatic major
Functions the same as the alveolar cfg; originate in alveolar bone
Interdental ligament
To dissolve

2. Lobes
Opening in the mouth below the orbit on the maxillary bone
Developmental segment of a tooth
Aid in attaching the gingiva to the alveolar bone
Rounded depression on a tooth

3. What are the four main functions of deciduous teeth?
Mastication - aids in speech - influence facial structure - chewing surfaces
Mildest form of cleft palate
The line of demarcation between the attached gingiva and the marginal gingiva
Tissue covering the alveolar processes

4. Ectoderm
The portion of the tooth that meets the gingiva
Forms into the inner lining of the oral cavitiy and enamel of the teeth
Excess dryness of the mouth
6 months/3years

5. TMJ bones are bathed In what solution?
Synovial fluid
Hinge motion and gliding movement
Supplies the gingival - maxillary sinus - cheeks - and maxillary molars with the exception of the mesial buccal root of the first molar
Opening in the mouth below the orbit on the maxillary bone

6. Morpho Differentiation
Demonstrates a disturbance in the body metabolism
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx
Tubules that pass through the entire surface of the dentin
Forming organ takes shape and resembles the shape of a bell

7. Facial development
Forming organ takes shape and resembles the shape of a bell
Maxillary third molar
Tooth emerges from gum tissue and becomes visible
4th week

8. Proliferation
Where the ectoderm layer matures into the enamel
Separates the developing oral cavities from the nasal cavities
Bone that surrounds the root of the tooth
The slightly raised line extending down the middle of the hard palate

9. What is the function of the buccle nerve branch?
Extreme variations from the norm
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle
Scroll like bones outside the nasal cavaties
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars

10. What are the 3 branches of the pterygopalatine nerve branch?
Greater - lesser - naso palatine nerves
The first predentin that is formed and matures within the tube
Enamel is thinner - pulp chamber is smaller -
1500 millimeters

11. Neonatal line
Forms into the inner lining of the oral cavitiy and enamel of the teeth
Wings of the sphenoid bone
Cheek bones--the most breakable bone in the body
Incremental line indicating trauma of birth

12. External Auditory Meatus
Molars
A bony plate covered with keratinized tissue located in the anterior portion of the palate
Opening for the ear
Separates the developing oral cavities from the nasal cavities

13. Posterior Teeth
6 months/3years
The mandibular molars
Bone that surrounds the root of the tooth
The teeth located at the back of the mouth

14. What is Ankyloglossia and who can treat it / What is the treatment called?
Third tooth from the midline
Folds of tissue to the the lingual veins
A condition where the lower frenum attachment is very short/DDS/frenectomy
The inner surface of the lips

15. Distal
Surface away from the midline
A triangular area located behind the last molar
Cluster of tissue that manufactures and secrets fluid
Supplies the gingival - maxillary sinus - cheeks - and maxillary molars with the exception of the mesial buccal root of the first molar

16. Attached Gingiva
Hinge motion and gliding movement
Cheek bones--the most breakable bone in the body
Extends from the mucogingival junction to the gingival groove
Trigeminal - facial - glossopharyngeal - hypoglossal

17. Ridge
Exits the mandibular canal at the mental foramen and supplies the chin and lower lip
Found near the cementoenamel junction
Formed by the fibroblast cells and secures the tooth in the socket
Linear elevation of the tooth

18. What are the 4 extrinsic muscles of the tongue
Extends from the medial corner of the eye to the nasal cavity
Genioglossus - hyoglossus - styloglossus - palatoglossus
Dividing point of a multi-rooted tooth
Appears to be loosely attached - covering the alveolar bone.

19. Muscle origine
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface
Excess dryness of the mouth
Middle line of the teeth
The fixed attachment of a muscle

20. Pulpitis
Cheek bones--the most breakable bone in the body
Set of arches found farther in the back of the throat
When the tissue becomes inflamed
Sharp projection on the under surface of the temporal bone

21. Periodontium
Canal or passage for fluid
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone
More common in girls--the failure of the palatal shelves to fuse with the primary palate (1 in 2500 births)

22. Buccal
Maxillary first molar
Covers muscle tissue in the posterior portion of the palate
Supplies the gingival - maxillary sinus - cheeks - and maxillary molars with the exception of the mesial buccal root of the first molar
Outside surface Which is towards the cheek - on posterior teeth

23. Labial Commissures
Draws the hyoid bone superiorly and posteriorly and stabilizes it
Portion of the root seen in the oral cavity
Initiation of the tooth begins
Corners of the mouth

24. Succedaneous teeth
Permeante teeth replace the primary teeth
Dentin found between the tubules
Where the ramus meets the body of the mandible on the outside border
A line of demarcation between the attached gingiva and alveolar mucosa

25. Mesoderm
Bifurcated/ 5 cusps
Forms into dentin - cementum and pulp of the teeth
Used to pulverize food
Incremental line indicating trauma of birth

26. Retro Mandibular Vein
Drains the maxiallary artery and superficial temporal arteries
A raised white line that runs parallel to where the teeth meet on the buccal mucosa
A bony projection that separates each socket
Origin of the tooth

27. Function of Geneoglossus?
Retracts or depresses the tongue
Papillae that give the tongue the strawberry effect
Supplies blood to the brain and the eyes
Full deep rich sound in nasal cavity

28. Dentinal Hypersensitivity
Maxillary third molar
Tributary of the facial vein which connects the facial vein to the pterygoid plexus of the veins
When the dentin is exposed
More common in girls--the failure of the palatal shelves to fuse with the primary palate (1 in 2500 births)

29. Cleft Lip
Separation of the upper lip ( 1 of 1000 live births)
Short tubules that seem to crossover to the enamel
Triferacated
Bone that surrounds the root of the tooth

30. Caruncle
Tissue fluid surrounding the cell membrane of the odontoblast
Fleshy elevation under the tongue
Surface away from the midline
Drains the maxiallary artery and superficial temporal arteries

31. What are the 4 cranial nerves that ennervate the face and oral cavity
Trigeminal - facial - glossopharyngeal - hypoglossal
Small curved lines that run parellel to the CEJ
Elevates the posterior portion of the tongue and narrows the fauces
Enamel is thinner - pulp chamber is smaller -

32. Evanesce
Secrete saliva to assist in process of digestion
Extreme variations from the norm
A duct that empties into the mouth thru the parotid papilla - Parotid gland goes with Stensen's duct
To dissolve

33. Morphology
Study of the structure and form of the teeth
The line of demarcation between the attached gingiva and the marginal gingiva
Synovial fluid
Portion of the lips that are red

34. Angle of the Mandible
The largest of three openings located in the posterior region of the hard palate
Small linear depression
Separates the developing oral cavities from the nasal cavities
Where the ramus meets the body of the mandible on the outside border

35. What teeth are removed if overcrowding occurs?
Mucosa that covers the alveolar bone
Clear fluid secreted by the salivary and mucous glands throughout the mouth
Bicuspids
Appears to be loosely attached - covering the alveolar bone.

36. What are the two muscles of the soft palate?
6 months/3years
Palatoglossus - palatopharyngeal
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone
Act to maintain the gingival integrity of the marginal gingiva

37. Fetal Alcohol Syndrome symptons
Small head - low nasal bridge - thin upper lip - small mandible
The gingiva in the floor of the gingival sulcus that attaches to the enamel
Respiratory system - digestive system and glandular organs
The development of different cells

38. Epithelial Attachment
A bony projection that separates each socket
Forming organ takes shape and resembles the shape of a bell
Dentin found between the tubules
The gingiva in the floor of the gingival sulcus that attaches to the enamel

39. Dentinal Fluid
Three bulges on the incisal edge
Tissue fluid surrounding the cell membrane of the odontoblast
32
A junction or center of veins that directly or indirectly drain a vast area

40. Alveolar Crest
Assist in depressing the mandible and elevating the tongue
Two cortical bone plates that come together between each tooth
Genioglossus - hyoglossus - styloglossus - palatoglossus
The mandibular first premolar

41. Purpose of premolars
Occurs in unusual ways and distorted crowns may appear
Used to pulverize food
Substances between cells
The connective tissue of the marginal gingiva

42. Sharpey's Fibers
Sharp projection on the under surface of the temporal bone
Acts as anchors between the alveolar bone and the tooth
Drains the maxiallary artery and superficial temporal arteries
Resulting from an imperfect union where the lobes come together

43. Deep Facial Veins
Vertical groove on the midline of the upper lip
The tip of the chin
Folds of tissue that extend horizontally from the uvula to the base of the tongue
Tributary of the facial vein which connects the facial vein to the pterygoid plexus of the veins

44. What are the eight landmarks of the face?
Ala of the nose - naso-labial groove - philtrum - vermilion border - vermilion zone - turbercle of the lip - labial commissures - labio-mental grooves
The study of the microscopic structure and functions of tissues
Forms into the inner lining of the oral cavitiy and enamel of the teeth
Biting edge of the teeth

45. Maxillary Sinus
Genioglossus - hyoglossus - styloglossus - palatoglossus
Cells develop into different tissues
Interdental ligament
Forms a large cavity above the roots of the maxillary molars

46. Gingival Hyperplasia
An overgrowth of the gingival tissue
Small yellowish glands on the labial mucosa
Demonstrates a disturbance in the body metabolism
Assist in the movement and functioning of the tongue

47. Sublingual Caruncles
Occlusal surface of the posterior tooth
2 small raised folds of tissue where the lingual frenum attaches
Two smaller openings located behind the greater Palatine Foramen in the posterior region of the hard palate
Supplies the gingival - maxillary sinus - cheeks - and maxillary molars with the exception of the mesial buccal root of the first molar

48. Nasmyths Membrane
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone
Covering over the enamel that is left over from the epithelium ameloblasts
Small bony projections surrounding the lingual foramen
Extends interiorly from the pterygopalatine nerve and exits thru the incisive foramen

49. Frenum
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars
Band of fibrous tissue which attaches muscle to bone
Arteries supplying blood to most of the head and the neck
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip

50. What is the purpose of saliva?
Bifurcated/ 5 cusps
Excess bone formations under the tongue on the alvellar bone
The largest of the salivary glands which lie just below and in front of the ear
To lubricate the oral cavity and to moisten food