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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. Deep Facial Veins
H20 - mucin - organic salts and digestive enzymes
Tributary of the facial vein which connects the facial vein to the pterygoid plexus of the veins
Located behind the ramus of the mandible and branches into five arteries
Composed of mucosa and surrounds the necks of the teeth

2. Gums
Raised vertical folds of tissue on the lateral border of the tongue
10 days
Tissue covering the alveolar processes
Supplies blood to the face and oral cavity

3. Facial development
Looking at the border of the tongue
The ridges that run horizontally across the hard palate behind the incisive papilla
4th week
Formed by the uniting of lobes during development of crown

4. Xygomatic bones
Mildest form of cleft palate
Orbicularis oris - buccinator - mentalis - zygomatic major
H20 - mucin - organic salts and digestive enzymes
Cheek bones--the most breakable bone in the body

5. Where is the palate located?
Narrow long enamel tuft
When cells rapidly increase in number
Inside of the maxillary teeth
Draws the hyoid bone superiorly and posteriorly and stabilizes it

6. Sublingual Caruncles
Small curved lines that run parellel to the CEJ
Small yellowish glands on the labial mucosa
2 small raised folds of tissue where the lingual frenum attaches
The inner surface of the lips

7. What are the eight landmarks of the face?
Cells From which connective tissue evolve
Ala of the nose - naso-labial groove - philtrum - vermilion border - vermilion zone - turbercle of the lip - labial commissures - labio-mental grooves
Upper arch of the teeth
9 weeks thru birth

8. Dentinal Tubules
No bicuspids/ no 3rd molars
Extends from the mucogingival junction to the gingival groove
Smaller branch that ennervates the soft palate uvula and tonsils
Tubules that pass through the entire surface of the dentin

9. What are the two muscles of the soft palate?
4 cusps/ bifurcated
The inner surface of the lips
Palatoglossus - palatopharyngeal
Tubules that pass through the entire surface of the dentin

10. Morphology
Study of the structure and form of the teeth
The teeth located at the back of the mouth
Origin of the tooth
Compact bone plate of the facial and lingual surfaces

11. Hyoid Bone
The development of different tissues
Drains the maxiallary artery and superficial temporal arteries
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
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein

12. Occlusal
Inside surface Which is towards the tongue - on anterior teeth
Cells From which connective tissue evolve
Pulverizing or chewing surface
Appears to be loosely attached - covering the alveolar bone.

13. What teeth do the deciduous (baby) tooth not include?
Where the proximal sides of two teeth come together and touch
No bicuspids/ no 3rd molars
Wings of the sphenoid bone
Dentin found between the tubules

14. What is Ankyloglossia and who can treat it / What is the treatment called?
A condition where the lower frenum attachment is very short/DDS/frenectomy
Dentin found between the tubules
Retracts the tongue and raises the tip of the tongue
10 days

15. What are the 2 sets of teeth?
Primary and permanent
Cluster of tissue that manufactures and secrets fluid
Primitive mouth
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue

16. Mesoderm
Forms into dentin - cementum and pulp of the teeth
Vertical groove on the midline of the upper lip
Convex area on the lingual surface near gingiva
Arteries supplying blood to most of the head and the neck

17. Anatomical root
Occurs in unusual ways and distorted crowns may appear
Supplies blood to the roots and periodontal ligaments of the molars and premolars
Forms the bulk of the tooth
Portion covered with cementum

18. Occlusion third
Largest division of the trigeminal nerve
Occlusal surface of the posterior tooth
A bony plate covered with keratinized tissue located in the anterior portion of the palate
Bony projection found on the bottom border of the temporal bone

19. What are the four major muscles of facial expression
Orbicularis oris - buccinator - mentalis - zygomatic major
Cells that form dentin
Stained growth rings in dentin
Begin at the caruncles on either side of the frenum and run backward to the base of the tongue

20. Which molar contains the cusp of Caribelli?
Maxillary first molar
Ala of the nose - naso-labial groove - philtrum - vermilion border - vermilion zone - turbercle of the lip - labial commissures - labio-mental grooves
Full deep rich sound in nasal cavity
Two smaller openings located behind the greater Palatine Foramen in the posterior region of the hard palate

21. What kind of root does the maxillary first molar have?
Found only in multi-rooted teeth and resists rotational forces
Triferacated
Assist in depressing the mandible and elevating the tongue
Quarters of the teeth

22. Maxillary Sinus
Digstric - Mylohyoid - stylohyoid - geniohyoid
Small dark brushes
Forms a large cavity above the roots of the maxillary molars
Separation of the upper lip ( 1 of 1000 live births)

23. Ameloblast
The crown of the tooth that is nearest the incisal edge near the anterior tooth
Enamel forming cells
Causes a thickening of the cementum around the apex
Bicuspids

24. What are the 4 maxillary nerve branches?
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine
Elevated area fo enamel that extends obliquely across the occlusal surface of the tooth
Portion of the root seen in the oral cavity
Circle and tighten the gingival margin around the neck of the tooth

25. Stenson's Duct
Trigeminal nerve--because it ennervates the maxilla and the mandible
Enamel forming cells
Trigeminal - facial - glossopharyngeal - hypoglossal
Duct located on the parotid papilla

26. Frenum
The largest of three openings located in the posterior region of the hard palate
Portion of the root seen in the oral cavity
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip
Inside of the maxillary teeth

27. Interdental Ligament Group
Resist rotational forces and hold teeth in inter-proximal contact
Short tubules that seem to crossover to the enamel
Dentin found between the tubules
Chewing and swallowing food

28. What are the largest and strongest of the mandibular teeth
Tributary of the facial vein which connects the facial vein to the pterygoid plexus of the veins
Portion covered with cementum
The mandibular molars
Pointed or rounded mounds on the crown of the tooth

29. Interdental Septum
Located in a depressed area between the pillars
A bony projection that separates each socket
Resists forces that try to pull the tooth outward
Where the ectoderm layer matures into the enamel

30. Fordyce's Spots
Small yellowish glands on the labial mucosa
Pulls the hyoid bone and the tongue anteriorly
Retracts or depresses the tongue
The largest of three openings located in the posterior region of the hard palate

31. What is origin and What is insertion?
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone
Dentin found between the tubules
Assists in elevating the chin
Origin - fixed point - insertion - movable point

32. Embrasure
Greater - lesser - naso palatine nerves
Cells From which connective tissue evolve
Triangular space in the gingival direction when two adjacent teeth are in contact
Lining covers inside of the oral cavity

33. Pulp Stones
Calcified masses of dentin
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone
Raised vertical folds of tissue on the lateral border of the tongue
Outside surface Which is towards the lips

34. Circumvallate Papillae
A bat shaped bone which forms the anterior portion of the skull
Responsible for laying down the enamel matrix into place
Largest papilla - mushroom shaped and are anterior to the sulcus terminalis in a row of 8 to 10
Wings of the sphenoid bone

35. Mixed Dentition
A period of both primary teeth and permeant teeth are in the dentition
Scroll like bones outside the nasal cavaties
Looking at the border of the tongue
A duct that empties into the mouth thru the parotid papilla - Parotid gland goes with Stensen's duct

36. Mylohyoid Artery
Branches off the inferior alveolar artery before intering the mandibular canal
The inner surface of the cheeks
Allow flexibility during mastication - speech
Short tubules that seem to crossover to the enamel

37. Cuspid
Bi-cuspids
Calcium salts are deposited into formed tooth
Indented
Third tooth from the midline

38. When do the primary teeth begin erupting and are fully erupted?
Permeante teeth replace the primary teeth
No bicuspids/ no 3rd molars
6 months/3years
Oval structures that are located on the dorsal surface of the tongue

39. Infraorbital Foramen
Opening in the mouth below the orbit on the maxillary bone
Origin - fixed point - insertion - movable point
1500 millimeters
The development of different forms

40. Secondary Dentin
The tip of the chin
Forms after the completion of the apical foramen
The line of demarcation between the attached gingiva and the marginal gingiva
Resist rotational forces and hold teeth in inter-proximal contact

41. Gland
Small yellowish glands on the labial mucosa
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle
Cluster of tissue that manufactures and secrets fluid
A small projection in the middle of the upper lip

42. Free Gingiva
Second teeth next to central incisors
Enamel forming cells
Forming organ takes shape and resembles the shape of a bell
The portion of the tooth that meets the gingiva

43. Function of Styloglossus
Two
Retracts the tongue and raises the tip of the tongue
Disk that acts like a cushion between the temporal bone and the condyloid process
Cells that form cementum

44. Exfoliated
Raised vertical folds of tissue on the lateral border of the tongue
Portion of the lips that are red
Shed from the oral cavity
Bicuspids

45. Lingual Nerve Branch
Two cortical bone plates that come together between each tooth
Portion of the lips where the skin meets the vermilion zone
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
2 to 3 pints

46. Cervical Third
Mildest form of cleft palate
Drains the facial structures beginning near the eye and descending toward the mandible
Extends interiorly from the pterygopalatine nerve and exits thru the incisive foramen
The area on the crown of the tooth that is nearest the gingival

47. Mandibular Foramen
Opening for the ear
Tissue fluid surrounding the cell membrane of the odontoblast
Located on the inside of the body of the ramus
The cornerstone of the mouth

48. Pulp horns
Supplies blood to the roots and periodontal ligaments of the molars and premolars
Pointed elongations of the pulp
Healthy gingival tissue with an orange texture
Place where the groove comes together or fissures cross

49. Hypercementosis
Bi-cuspids
Formed by the fibroblast cells and secures the tooth in the socket
Causes a thickening of the cementum around the apex
Study of prenatal growth and the developing process of an individual

50. Function of Palatopharyngeal
Constricts the nasopharyngeal passage and elevates the larynx
Supportive fibers that anchor the tooth to the bone
The development of different cells
A flap of tissue on the on the buccal mucosa