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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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1. What is the largest cranial nerve and the most important to dental auxillaries and why?
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle
Cells develop into different tissues
Trigeminal nerve--because it ennervates the maxilla and the mandible
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip

2. Circular Ligament Fiber Groups
Circle and tighten the gingival margin around the neck of the tooth
Cells From which connective tissue evolve
Forming organ takes shape and resembles the shape of a bell
Outside surface Which is towards the cheek - on posterior teeth

3. Function of mylohyoid
Covering over the enamel that is left over from the epithelium ameloblasts
Assist in depressing the mandible and elevating the tongue
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars
4 cusps/ bifurcated

4. 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
Three bulges on the incisal edge
10 days
A raised area of tissue laying behind the maxillary central incisors on the hard palate

5. Agenesis
32
Ligaments and muscles of mastication
Occurs in unusual ways and distorted crowns may appear
Extends interiorly from the pterygopalatine nerve and exits thru the incisive foramen

6. Pterygoid Artery
Inner portion of the enamel rod
Interdental ligament
Supplies blood to the temporal muscle - masseter muscle - pterygoid muscle and buccanator
Cheek bones--the most breakable bone in the body

7. Labial Mucosa
Orbicularis oris - buccinator - mentalis - zygomatic major
The fixed attachment of a muscle
Act to maintain the gingival integrity of the marginal gingiva
The inner surface of the lips

8. Pulp horns
Second teeth next to central incisors
Follows the inside of the ramus and the body of the mandible
6 months/3years
Pointed elongations of the pulp

9. Odontoblast
Innervates the orbicular oculi - the area around the eye - and the area around and behind the zygomatic arch
Cells that form dentin
Primary and permanent
Molars

10. Greater Palatine Foramen
Supplies the gingival - maxillary sinus - cheeks - and maxillary molars with the exception of the mesial buccal root of the first molar
The largest of three openings located in the posterior region of the hard palate
Cut - tear - and grind food
Formed by the fibroblast cells and secures the tooth in the socket

11. What ligament is retained the longest during periodontal disease?
Interdental ligament
Supplies blood to the roots and periodontal ligaments of the molars and premolars
Papillae that give the tongue the strawberry effect
The development of different forms

12. Morpho differentiation
The development of different forms
(free gingiva) surrounds the teeth
A raised area of tissue laying behind the maxillary central incisors on the hard palate
Extends interiorly from the pterygopalatine nerve and exits thru the incisive foramen

13. Gingiva
Radiates from the developmental groove
A dense tissue covered with mucous membrane that can withstand chewing
Draws down the mandible and corners of the mouth
Synovial fluid

14. Tubercle of the Lip
Forms the remaining 2/3 of the hard and soft palate uvula
Natural teeth in position
Quarters of the teeth
A small projection in the middle of the upper lip

15. Pulp Stones
Extends from the medial corner of the eye to the nasal cavity
Small raised projections where taste buds are located
Calcified masses of dentin
Creates the wall of the dentinal tubule

16. When do the primary teeth begin erupting and are fully erupted?
Lower arch of the teeth
Extreme variations from the norm
6 months/3years
Assist in the movement and functioning of the tongue

17. Cleft Palate
More common in girls--the failure of the palatal shelves to fuse with the primary palate (1 in 2500 births)
Branches off the inferior alveolar artery before intering the mandibular canal
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone
Depresses the tongue

18. Lobes
Developmental segment of a tooth
Palatoglossus - palatopharyngeal
Trigeminal - facial - glossopharyngeal - hypoglossal
Looking at the border of the tongue

19. Posterior Teeth
The gingiva in the floor of the gingival sulcus that attaches to the enamel
A duct that empties into the mouth thru the parotid papilla - Parotid gland goes with Stensen's duct
An overgrowth of the gingival tissue
The teeth located at the back of the mouth

20. Interdental Septum
A bony plate covered with keratinized tissue located in the anterior portion of the palate
A bony projection that separates each socket
Orbicularis oris - buccinator - mentalis - zygomatic major
Peg shaped crown with a smooth surface

21. Mixed Dentition
Fifth cusp located on the mesial surface lingual surface of maxillary first molars
The development of different tissues
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
A period of both primary teeth and permeant teeth are in the dentition

22. Incisal Edge
A bat shaped bone which forms the anterior portion of the skull
The teeth located at the back of the mouth
Biting edge of the teeth
Fifth cusp located on the mesial surface lingual surface of maxillary first molars

23. Inferior Nasal Conchae
The space between the unattached gingiva and the tooth
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue
Interdental ligament
Scroll like bones outside the nasal cavaties

24. Enamel Spindle
Small linear depression
Layers of tooth tissue become calcified
Short tubules that seem to crossover to the enamel
Inner portion of the enamel rod

25. Ridge
Draws the hyoid bone superiorly and posteriorly and stabilizes it
Depresses the tongue
Teeth will not erupt in proper position
Linear elevation of the tooth

26. Fungiform Papillae
2 small raised folds of tissue where the lingual frenum attaches
Papillae that give the tongue the strawberry effect
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx
Bluish veins that run the length of the tongue

27. Vestibule
Supplies blood to the temporal muscle - masseter muscle - pterygoid muscle and buccanator
A shallow v-shaped depression located below the bottom of the nose and above the lips
A pocket formed by the soft tissue of cheeks and gingiva
Pulverizing or chewing surface

28. Gland
Causes a thickening of the cementum around the apex
Functions the same as the alveolar cfg; originate in alveolar bone
Biting edge of the teeth
Cluster of tissue that manufactures and secrets fluid

29. Eruption
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle
Supplies blood to the temporal muscle - masseter muscle - pterygoid muscle and buccanator
Tooth emerges from gum tissue and becomes visible
A projection that extends off the back of the soft palate

30. Maxillary Arch
Upper arch of the teeth
Place where the groove comes together or fissures cross
Shaping the tongue during speech - mastication and swallowing
The outer edge of the nostril

31. Cemental Spurs
When the surface of the teeth becomes grooved
Found near the cementoenamel junction
Convex area on the lingual surface near gingiva
10 days

32. Paranasal
Portion of the lips that are red
Outside surface Which is towards the lips
Drains the Pterygoid plexus of the veins
Of or pertaining to area surrounding naval cavity

33. Labial
Ligaments and muscles of mastication
Outside surface Which is towards the lips
Pulls the hyoid bone and the tongue anteriorly
Vertical groove on the midline of the upper lip

34. Uvula
A projection that extends off the back of the soft palate
When the tissue becomes inflamed
Quarters of the teeth
Cheek bones--the most breakable bone in the body

35. Function of Styloglossus
Retracts the tongue and raises the tip of the tongue
Supportive fibers that anchor the tooth to the bone
Anterior to the ethmoid bone and part of the orbit (corners of the eye)
Maxillary third molar

36. Cervical Third
Supplies the gingival - maxillary sinus - cheeks - and maxillary molars with the exception of the mesial buccal root of the first molar
Supplies blood to the temporal muscle - masseter muscle - pterygoid muscle and buccanator
The area on the crown of the tooth that is nearest the gingival
Resists intrusive forces that try to push the tooth inwards

37. Peg lateral
Substances between cells
Peg shaped crown with a smooth surface
Resists forces that try to pull the tooth outward
The development of different forms

38. What are the intrinsical muscles of the tongue responsible for?
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx
Natural teeth in position
Shaping the tongue during speech - mastication and swallowing
Branches off the inferior alveolar artery before intering the mandibular canal

39. Buccal Mucosa
A small projection in the middle of the upper lip
Assists in elevating the chin
The inner surface of the cheeks
Forms into dentin - cementum and pulp of the teeth

40. Mandibular Foramen
Calcified masses of dentin
Canal or passage for fluid
Origin - fixed point - insertion - movable point
Located on the inside of the body of the ramus

41. Convects
Extends from the medial corner of the eye to the nasal cavity
The cornerstone of the mouth
Full deep rich sound in nasal cavity
Curve outward

42. Exfoliated
Cut - tear - and grind food
Bluish veins that run the length of the tongue
Shed from the oral cavity
Constricts the nasopharyngeal passage and elevates the larynx

43. Buckle groove
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth
Primitive mouth
Separates the developing oral cavities from the nasal cavities
Drains the floor of the mouth

44. What are the 4 pairs of muscles of mastication!
The crown of the tooth that is nearest the incisal edge near the anterior tooth
Temporal muscles - masseter muscles - internal pterygoid muscles - external pterygoid muscles
Week 11
Excess bone in the middle of the palate

45. Mylohyoid Artery
Assist in depressing the mandible and elevating the tongue
Clear fluid secreted by the salivary and mucous glands throughout the mouth
A raised white line that runs parallel to where the teeth meet on the buccal mucosa
Branches off the inferior alveolar artery before intering the mandibular canal

46. Torus Mandibularis
Week 12
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface
Excess bone formations under the tongue on the alvellar bone
Drains the superficial veins of the face and neck into the subclavian vein

47. Middle Superior Alveolar Nerve
Draws the hyoid bone superiorly and posteriorly and stabilizes it
Opening in the mouth below the orbit on the maxillary bone
Healthy gingival tissue with an orange texture
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids

48. Alveologingival Fiber Groups
Aid in attaching the gingiva to the alveolar bone
A concave area where two bones of the mandible are fused in the center of the mandible on the external surface
Tissue covering the alveolar processes
Appears to be loosely attached - covering the alveolar bone.

49. Alveolus
Bone that surrounds the root of the tooth
Bifurcated/ 5 cusps
Two vertical extensions of the mandible
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth

50. Parotid Papilla
Enamel forming cells
32
The mandibular first premolar
A flap of tissue on the on the buccal mucosa