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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. Ameloblast
Enamel forming cells
Constricts the nasopharyngeal passage and elevates the larynx
Extreme variations from the norm
Also known as meniscus it is a dense fibrous connective tissue that is thicker at the ends and attached to the condyle

2. Secondary palate
The corners of the mouth where the top and bottom lip meet
Oval structures that are located on the dorsal surface of the tongue
Oval depression of temporal bone in condyloid process
Forms the remaining 2/3 of the hard and soft palate uvula

3. What are the intrinsical muscles of the tongue responsible for?
Excess dryness of the mouth
The moveable attachment of the muscle
Extends interiorly from the pterygopalatine nerve and exits thru the incisive foramen
Shaping the tongue during speech - mastication and swallowing

4. Cuspid
A line of demarcation between the attached gingiva and alveolar mucosa
Third tooth from the midline
Separation of the upper lip ( 1 of 1000 live births)
Primary and permanent

5. Ala of the Nose
Origin - fixed point - insertion - movable point
The outer edge of the nostril
When cells rapidly increase in number
Teeth after cuspids

6. Function of Hyoglossus
Exits the mandibular canal at the mental foramen and supplies the chin and lower lip
Depresses the tongue
Resists forces that try to pull the tooth outward
When cells rapidly increase in number

7. Sulingual Folds
Begin at the caruncles on either side of the frenum and run backward to the base of the tongue
Week 12
Largest division of the trigeminal nerve
Two smaller openings located behind the greater Palatine Foramen in the posterior region of the hard palate

8. Distal
4 cusps/ bifurcated
Portion of the lips that are red
Surface away from the midline
Slight ridges on the cervical third of certain teeth that extend mesiodistally

9. Parotid glands
Sharp projection on the under surface of the temporal bone
The study of the microscopic structure and functions of tissues
The largest of the salivary glands which lie just below and in front of the ear
The fixed attachment of a muscle

10. Enamel Tufts
Assists in elevating the chin
Primary embryonic mesoderm layer that develops during the morpho differentiation period
Small dark brushes
Portion covered with cementum

11. Angle of the Mandible
Secrete saliva to assist in process of digestion
Bluish veins that run the length of the tongue
Where the ramus meets the body of the mandible on the outside border
The ridges that run horizontally across the hard palate behind the incisive papilla

12. Incisal third
2 to 3 pints
The connective tissue of the marginal gingiva
The crown of the tooth that is nearest the incisal edge near the anterior tooth
Extends from the mucogingival junction to the gingival groove

13. Genial Tubercles
The development of different forms
Small bony projections surrounding the lingual foramen
Two smaller openings located behind the greater Palatine Foramen in the posterior region of the hard palate
Retracts the tongue and raises the tip of the tongue

14. Mental Artery
Two weeks thru 8th week
A line of tissue that extends from the tongue to the floor of the mouth
Exits the mandibular canal at the mental foramen and supplies the chin and lower lip
A horseshoe shaped groove that follow the curve of the dental arch

15. Buccal
Place where the groove comes together or fissures cross
Papillae that give the tongue the strawberry effect
Inside surface Which is towards the tongue - on anterior teeth
Outside surface Which is towards the cheek - on posterior teeth

16. Triangular Ridge
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface
(free gingiva) surrounds the teeth
When the tissue becomes inflamed
A line of tissue that extends from the tongue to the floor of the mouth

17. What kind of root does the maxillary first molar have?
Largest of the branches of the external carotid artery; supplies facial structure
Tissue fluid surrounding the cell membrane of the odontoblast
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth
Triferacated

18. Function of Palatoglossus
Elevates the posterior portion of the tongue and narrows the fauces
Covers muscle tissue in the posterior portion of the palate
Assist in the movement and functioning of the tongue
The line of demarcation between the attached gingiva and the marginal gingiva

19. Facial development
Teeth after cuspids
4th week
The mandibular molars
Folds of tissue to the the lingual veins

20. Pit
Place where the groove comes together or fissures cross
Small head - low nasal bridge - thin upper lip - small mandible
Fifth cusp located on the mesial surface lingual surface of maxillary first molars
Where the ramus meets the body of the mandible on the outside border

21. Torus Mandibularis
Excess bone formations under the tongue on the alvellar bone
Cells From which connective tissue evolve
Primary and permanent
A pocket formed by the soft tissue of cheeks and gingiva

22. What teeth are removed if overcrowding occurs?
Trigeminal - facial - glossopharyngeal - hypoglossal
Teeth will not erupt in proper position
Bicuspids
The study of the microscopic structure and functions of tissues

23. What is the largest cranial nerve and the most important to dental auxillaries and why?
Bluish veins that run the length of the tongue
Surface towards the midline
Platysma - trapezius - sternocleidomastoid
Trigeminal nerve--because it ennervates the maxilla and the mandible

24. Mylohyoid Artery
No bicuspids/ no 3rd molars
Branches off the inferior alveolar artery before intering the mandibular canal
Secrete saliva to assist in process of digestion
Mastication - aids in speech - influence facial structure - chewing surfaces

25. Interdental Septum
Synovial fluid
Small linear depression
A bony projection that separates each socket
Layers of tooth tissue become calcified

26. Enamel Dysplasia
Raised vertical folds of tissue on the lateral border of the tongue
When the surface of the teeth becomes grooved
The mandibular molars
Of or pertaining to area surrounding naval cavity

27. What are the 2 sets of teeth?
Largest papilla - mushroom shaped and are anterior to the sulcus terminalis in a row of 8 to 10
The deepest point of the vestibule
Oval depression of temporal bone in condyloid process
Primary and permanent

28. Function of mylohyoid
Assist in the movement and functioning of the tongue
Assist in depressing the mandible and elevating the tongue
Separates the developing oral cavities from the nasal cavities
1500 millimeters

29. Vestibule
Lining covers inside of the oral cavity
Function to resist rotational forces and tilting
A bony projection that separates each socket
A pocket formed by the soft tissue of cheeks and gingiva

30. Lateral Incisor
Cheek bones--the most breakable bone in the body
Second teeth next to central incisors
Cells that form dentin
Vestibule - vestibule fornix - labial mucosa - buccal mucosa - parotid papilla - Stenson's duct - linea alba - Fordyce's spots - alveolar mucosa - gingiva - labial frenum - buccal frenum

31. How many cusps does the second bicuspid have?
Two
Covering over the enamel that is left over from the epithelium ameloblasts
Palatoglossus - palatopharyngeal
The outer edge of the nostril

32. Mixed Dentition
Quarters of the teeth
Draws down the mandible and corners of the mouth
A period of both primary teeth and permeant teeth are in the dentition
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle

33. Caruncle
Fleshy elevation under the tongue
Tributary of the facial vein which connects the facial vein to the pterygoid plexus of the veins
The largest of the salivary glands which lie just below and in front of the ear
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

34. Morphology
Extends from the medial corner of the eye to the nasal cavity
Study of the structure and form of the teeth
Retracts or depresses the tongue
The development of different tissues

35. What is the function of the buccle nerve branch?
Incremental line indicating trauma of birth
Permeante teeth replace the primary teeth
Wearing away of the incisal or occlusal surfaces of the tooth
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars

36. Facial Vein
Drains the facial structures beginning near the eye and descending toward the mandible
Excess bone in the middle of the palate
Inside of the maxillary teeth
Linear elevation of the tooth

37. Uvula
Primitive mouth
Smaller branch that ennervates the soft palate uvula and tonsils
A projection that extends off the back of the soft palate
20

38. Sublingual Glands
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
The corners of the mouth where the top and bottom lip meet
Indented
When the tissue becomes inflamed

39. Palatine Bones
Slight ridges on the cervical third of certain teeth that extend mesiodistally
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine
Joined at the midline and are often referred to as the median Palatine suture
Raised vertical folds of tissue on the lateral border of the tongue

40. Internal Carotid Artery
Supplies blood to the brain and the eyes
Also known as meniscus it is a dense fibrous connective tissue that is thicker at the ends and attached to the condyle
Cluster of tissue that manufactures and secrets fluid
Place where the groove comes together or fissures cross

41. Occlusal
Pulverizing or chewing surface
Responsible for laying down the enamel matrix into place
The tip of the chin
Week 12

42. Exfoliated
Drains the floor of the mouth
Supplies blood to the temporal muscle - masseter muscle - pterygoid muscle and buccanator
Shed from the oral cavity
Formed by the fibroblast cells and secures the tooth in the socket

43. What is Ankyloglossia and who can treat it / What is the treatment called?
4 cusps/ bifurcated
Folds of tissue to the the lingual veins
Resists intrusive forces that try to push the tooth inwards
A condition where the lower frenum attachment is very short/DDS/frenectomy

44. Muscle origine
Portion covered with cementum
Assist in depressing the mandible and elevating the tongue
The fixed attachment of a muscle
Temporal muscles - masseter muscles - internal pterygoid muscles - external pterygoid muscles

45. How many cusps/ roots do the 2/3rd mandibular molars have?
A horseshoe shaped groove that follow the curve of the dental arch
Lift the hyoid bone and assist in opening the mouth
Retracts the tongue and raises the tip of the tongue
4 cusps/ bifurcated

46. What are the four major muscles of facial expression
Middle two teeth in the mouth
(free gingiva) surrounds the teeth
Orbicularis oris - buccinator - mentalis - zygomatic major
Appears to be loosely attached - covering the alveolar bone.

47. Palantine Tonsils
Portion of the lips where the skin meets the vermilion zone
Shaping the tongue during speech - mastication and swallowing
Located in a depressed area between the pillars
The cornerstone of the mouth

48. Rami
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface
A junction or center of veins that directly or indirectly drain a vast area
Two vertical extensions of the mandible
Allow flexibility during mastication - speech

49. Peritubular Dentin
Branches off the inferior alveolar artery before intering the mandibular canal
Respiratory system - digestive system and glandular organs
The development of different forms
Creates the wall of the dentinal tubule

50. Labial
The connective tissue of the marginal gingiva
Tributary of the facial vein which connects the facial vein to the pterygoid plexus of the veins
Outside surface Which is towards the lips
Substances between cells