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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 3 branches of the pterygopalatine nerve branch?
9 weeks thru birth
The tip of the chin
Incremental line indicating trauma of birth
Greater - lesser - naso palatine nerves

2. Foliate Papillae
Depresses the tongue
Raised vertical folds of tissue on the lateral border of the tongue
Follows the inside of the ramus and the body of the mandible
Located in a depressed area between the pillars

3. Function of Platysma
The inner surface of the cheeks
Draws down the mandible and corners of the mouth
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars
2 to 3 pints

4. Internal Carotid Artery
Supplies blood to the brain and the eyes
The mandibular first premolar
Wings of the sphenoid bone
Band of fibrous tissue which attaches muscle to bone

5. What are the intrinsical muscles of the tongue responsible for?
Shaping the tongue during speech - mastication and swallowing
Oval structures that are located on the dorsal surface of the tongue
Portion of the lips that are red
The largest of the salivary glands which lie just below and in front of the ear

6. What are the 4 taste senses and where are they located?
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue
Two smaller openings located behind the greater Palatine Foramen in the posterior region of the hard palate
Narrow long enamel tuft
Also known as meniscus it is a dense fibrous connective tissue that is thicker at the ends and attached to the condyle

7. Buccal Mucosa
The inner surface of the cheeks
Cluster of tissue that manufactures and secrets fluid
Portion covered with cementum
Maxillary third molar

8. Function of Stylohyoid
Small bony projections surrounding the lingual foramen
Draws the hyoid bone superiorly and posteriorly and stabilizes it
Cluster of tissue that manufactures and secrets fluid
Portion of the lips that are red

9. What is origin and What is insertion?
Formed by the uniting of lobes during development of crown
Three cusps/ trifurcated
Growth from the oral epithelium that gives rise to the tooth buds
Origin - fixed point - insertion - movable point

10. Styloid Process
Sharp projection on the under surface of the temporal bone
Surface away from the midline
Enamel is thinner - pulp chamber is smaller -
Oval structures that are located on the dorsal surface of the tongue

11. Anterior Tonsillar Pillar
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle
Three cusps/ trifurcated
Folds of tissue that extend horizontally from the uvula to the base of the tongue
Opening for the ear

12. Interradicular Septum
A triangular area located behind the last molar
Appears to be loosely attached - covering the alveolar bone.
The bone that separates the root on a tooth
A small projection in the middle of the upper lip

13. Maxilla
Small grooves noted on some teeth
Portion of the lips where the skin meets the vermilion zone
Week 12
Largest facial bone with two sections joined at the median suture

14. Fetus
Wings of the sphenoid bone
32
A small projection in the middle of the upper lip
9 weeks thru birth

15. Lesser Palatine Foramen
Two smaller openings located behind the greater Palatine Foramen in the posterior region of the hard palate
Week 12
Elevates the posterior portion of the tongue and narrows the fauces
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars

16. Maxillary Tuberosity
Found near the cementoenamel junction
The area on the crown of the tooth that is nearest the gingival
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone
A rounded area beyond the last posterior maxillary tooth

17. Epithelial Attachment
Chewing and swallowing food
Largest of the branches of the external carotid artery; supplies facial structure
Upper arch of the teeth
The gingiva in the floor of the gingival sulcus that attaches to the enamel

18. Fungiform Papillae
Papillae that give the tongue the strawberry effect
Portion of the lips where the skin meets the vermilion zone
The layer of dentin that surrounds the pulp
Full deep rich sound in nasal cavity

19. Anterior Alveolar Nerve
2 to 3 pints
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth
Small linear depression
Intervates the anterior maxillary sinus - gingiva - cuspids - laterals - and central incisors

20. Morpho differentiation
The development of different tissues
The development of different forms
What divides the tongue in half and runs from the base to the tip of the tongue
Tubules that pass through the entire surface of the dentin

21. Cusp of Caribelli
Week 12
Fifth cusp located on the mesial surface lingual surface of maxillary first molars
Platysma - trapezius - sternocleidomastoid
Excess bone formations under the tongue on the alvellar bone

22. Function of Palatoglossus
Of or pertaining to area surrounding naval cavity
Elevates the posterior portion of the tongue and narrows the fauces
Initiation of the tooth begins
The bone that separates the root on a tooth

23. Circumpulpal Dentin
Forms after the completion of the apical foramen
Interdental ligament
Tooth emerges from gum tissue and becomes visible
The layer of dentin that surrounds the pulp

24. Peritubular Dentin
Draws the hyoid bone superiorly and posteriorly and stabilizes it
Small raised projections where taste buds are located
Middle line of the teeth
Creates the wall of the dentinal tubule

25. Fordyce's Spots
Small yellowish glands on the labial mucosa
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars
The gingiva in the floor of the gingival sulcus that attaches to the enamel
A horseshoe shaped groove that follow the curve of the dental arch

26. Circular Ligament Fiber Groups
To bulge of curve outward
Arteries supplying blood to most of the head and the neck
Circle and tighten the gingival margin around the neck of the tooth
Resist rotational forces and hold teeth in inter-proximal contact

27. Occlusion third
Creates the wall of the dentinal tubule
Occlusal surface of the posterior tooth
Located on the inside of the body of the ramus
Largest division of the trigeminal nerve

28. When does the maxillary first molar erupt?
6 years old
Molars
Oval depression of temporal bone in condyloid process
Resists forces that try to pull the tooth outward

29. Periodontium
Duct located on the parotid papilla
Draws down the mandible and corners of the mouth
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone
Outside surface Which is towards the cheek - on posterior teeth

30. Fissure
Resulting from an imperfect union where the lobes come together
6 years old
Middle two teeth in the mouth
Growth from the oral epithelium that gives rise to the tooth buds

31. Contact Area
Where the proximal sides of two teeth come together and touch
Dividing point of a multi-rooted tooth
Joined at the midline and are often referred to as the median Palatine suture
A raised white line that runs parallel to where the teeth meet on the buccal mucosa

32. Fossa
Triferacated
Bluish veins that run the length of the tongue
Rounded depression on a tooth
Biting edge of the teeth

33. Zygomatic nerve
Covering over the enamel that is left over from the epithelium ameloblasts
Innervates the orbicular oculi - the area around the eye - and the area around and behind the zygomatic arch
Small grooves noted on some teeth
The largest of the salivary glands which lie just below and in front of the ear

34. What are the three muscles of the neck?
The development of different cells
Enamel is thinner - pulp chamber is smaller -
A pocket formed by the soft tissue of cheeks and gingiva
Platysma - trapezius - sternocleidomastoid

35. Mucogingival Junction
The development of different tissues
Draws down the mandible and corners of the mouth
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip
A line of demarcation between the attached gingiva and alveolar mucosa

36. Calcification
Layers of tooth tissue become calcified
Located behind the ramus of the mandible and branches into five arteries
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
A raised white line that runs parallel to where the teeth meet on the buccal mucosa

37. Stensens' Duct (aka Parotid)

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38. Oblique Fiber Group
Bicuspids
Resists intrusive forces that try to push the tooth inwards
Peg shaped crown with a smooth surface
Bony projection found on the bottom border of the temporal bone

39. Maxillary Artery
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth
Largest of the branches of the external carotid artery; supplies facial structure
Radiates from the developmental groove
Forms a large cavity above the roots of the maxillary molars

40. Pulp Stones
Incremental line indicating trauma of birth
Forms the remaining 2/3 of the hard and soft palate uvula
Bi-cuspids
Calcified masses of dentin

41. If a patient receives toxic agents - how long does it take for their sense of taste to return?
Linear elevation of the tooth
Small grooves noted on some teeth
10 days
The inner surface of the cheeks

42. What are the two muscles of the soft palate?
Sharp projection on the under surface of the temporal bone
Scroll like bones outside the nasal cavaties
Enamel is thinner - pulp chamber is smaller -
Palatoglossus - palatopharyngeal

43. Apposition
A rounded area beyond the last posterior maxillary tooth
Excess bone formations under the tongue on the alvellar bone
Appears to be loosely attached - covering the alveolar bone.
Calcium salts are deposited into formed tooth

44. Maxillary vein
Anterior to the ethmoid bone and part of the orbit (corners of the eye)
Opening for the ear
Drains the Pterygoid plexus of the veins
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

45. Alveolar Mucosa
Bony projection found on the bottom border of the temporal bone
The space between the unattached gingiva and the tooth
A line of tissue that extends from the tongue to the floor of the mouth
Appears to be loosely attached - covering the alveolar bone.

46. Pterygoid plexus of the veins
A junction or center of veins that directly or indirectly drain a vast area
Constricts the nasopharyngeal passage and elevates the larynx
Resist rotational forces and hold teeth in inter-proximal contact
Orbicularis oris - buccinator - mentalis - zygomatic major

47. Posterior Teeth
The teeth located at the back of the mouth
Tubules that pass through the entire surface of the dentin
Outside surface Which is towards the cheek - on posterior teeth
Teeth will not erupt in proper position

48. Duct
Canal or passage for fluid
Drains the facial structures beginning near the eye and descending toward the mandible
Healthy gingival tissue with an orange texture
The outer edge of the nostril

49. lst and second premolars
A junction or center of veins that directly or indirectly drain a vast area
Teeth after cuspids
Third tooth from the midline
An extension of an unattached gingiva and the tooth

50. Middle Superior Alveolar Nerve
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids
The development of different tissues
Located on the inside of the body of the ramus
Mucosa that covers the alveolar bone