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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. Embryo
Three bulges on the incisal edge
Origin of the tooth
Initiation of the tooth begins
Two weeks thru 8th week

2. What are the characteristics of deciduous teeth?
Rounded depression on a tooth
Smaller - enamel thicker - pulp chamber is larger is larger - bifurcation wider
Supplies blood to the temporal muscle - masseter muscle - pterygoid muscle and buccanator
The development of different tissues

3. Posterior Tonsillar Pillar
Set of arches found farther in the back of the throat
Union of two triangular ridges that produce a single ridge of elevation that cross the occlusal surface of posterior teeth
Trigeminal - facial - glossopharyngeal - hypoglossal
Looking at the border of the tongue

4. Maxillary Sinus
Triferacated
9 weeks thru birth
Forms a large cavity above the roots of the maxillary molars
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

5. Incisive Arteries
The mandibular first premolar
9 months (5 months ultrasound to tell sex)
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
Supplies blood to the roots and periodontal ligaments of the interior teeth

6. Function of mylohyoid
Forms into the inner lining of the oral cavitiy and enamel of the teeth
Assist in depressing the mandible and elevating the tongue
The mandibular first premolar
Calcium salts are deposited into formed tooth

7. Torus Mandibularis
Excess bone formations under the tongue on the alvellar bone
Conception thru the first two weeks
A shallow v-shaped depression located below the bottom of the nose and above the lips
Arteries supplying blood to most of the head and the neck

8. Convex
Located behind the ramus of the mandible and branches into five arteries
Occlusal surface of the posterior tooth
Bi-cuspids
To bulge of curve outward

9. Dentinal Fluid
Intervates the anterior maxillary sinus - gingiva - cuspids - laterals - and central incisors
Place where the groove comes together or fissures cross
Tissue fluid surrounding the cell membrane of the odontoblast
A dense tissue covered with mucous membrane that can withstand chewing

10. What are the 12 landmarks of the oral cavity?

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11. What is the function of the buccle nerve branch?
Located on the inside of the body of the ramus
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars
A concave area where two bones of the mandible are fused in the center of the mandible on the external surface
(free gingiva) surrounds the teeth

12. Alveolar Mucosa
Small grooves noted on some teeth
Dentin found between the tubules
Mucosa that covers the alveolar bone
Scroll like bones outside the nasal cavaties

13. Tendon
Band of fibrous tissue which attaches muscle to bone
Third tooth from the midline
12 years
Found near the cementoenamel junction

14. Incisal Edge
Supplies blood to the face and oral cavity
Biting edge of the teeth
Inside surface Which is towards the tongue - on anterior teeth
Assist in the movement and functioning of the tongue

15. Frenum
Responsible for laying down the enamel matrix into place
Separation of the upper lip ( 1 of 1000 live births)
The portion of the tooth that meets the gingiva
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip

16. Function of Palatopharyngeal
Constricts the nasopharyngeal passage and elevates the larynx
Teeth will not erupt in proper position
Extreme variations from the norm
Small dark brushes

17. What are the largest and strongest of the mandibular teeth
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle
Small raised projections where taste buds are located
Triferacated
The mandibular molars

18. Intertubular Dentin
Located on the inside of the body of the ramus
Small linear depression
A pocket formed by the soft tissue of cheeks and gingiva
Dentin found between the tubules

19. Primary palate
Two cortical bone plates that come together between each tooth
A junction or center of veins that directly or indirectly drain a vast area
Shed from the oral cavity
Separates the developing oral cavities from the nasal cavities

20. Buckle groove
Small raised projections where taste buds are located
Excess dryness of the mouth
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth
A small projection in the middle of the upper lip

21. Common Carotid
Contains six branches that supply blood to the pharynx muscles - soft palate tonsils - the posterior of the tongue - sub mandibular gland - muscles of the face - nasal septom - nose and the eyelids
Arteries supplying blood to most of the head and the neck
Inside surface Which is towards the tongue - on anterior teeth
Skeletal or soft tissue structures used as reference points in describing locations of anatomical structures or taking measurements

22. How can you tell if someone has cancer by looking at the tongue?
Joined at the midline and are often referred to as the median Palatine suture
32
Looking at the border of the tongue
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine

23. What are the 4 pairs of muscles of mastication!
Oval structures that are located on the dorsal surface of the tongue
Cells From which connective tissue evolve
Temporal muscles - masseter muscles - internal pterygoid muscles - external pterygoid muscles
Forms the remaining 2/3 of the hard and soft palate uvula

24. Mastication
Cells develop into different tissues
Chewing and swallowing food
Corners of the mouth
Drains the maxiallary artery and superficial temporal arteries

25. What is the largest cranial nerve and the most important to dental auxillaries and why?
Trigeminal nerve--because it ennervates the maxilla and the mandible
Retracts the tongue and raises the tip of the tongue
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
Incremental lines around the layers of the enamel matrix

26. Lingual Veins
Separation of the upper lip ( 1 of 1000 live births)
Origin of the tooth
Bluish veins that run the length of the tongue
The tip of the chin

27. External Jugular Vein
A raised area of tissue laying behind the maxillary central incisors on the hard palate
Drains the superficial veins of the face and neck into the subclavian vein
Excess bone formations under the tongue on the alvellar bone
Lift the hyoid bone and assist in opening the mouth

28. Tubercle of the Lip
Mastication - aids in speech - influence facial structure - chewing surfaces
The first predentin that is formed and matures within the tube
A small projection in the middle of the upper lip
Vertical groove on the midline of the upper lip

29. When do the tooth buds appear?
Retracts the tongue and raises the tip of the tongue
Extreme variations from the norm
Week 11
A horseshoe shaped groove that follow the curve of the dental arch

30. What is the smallest tooth in dentition?
Small curved lines that run parellel to the CEJ
Linear elevation of the tooth
Mandibular central incisors
Rounded depression on a tooth

31. Parotid Papilla
A flap of tissue on the on the buccal mucosa
The largest of three openings located in the posterior region of the hard palate
Disk that acts like a cushion between the temporal bone and the condyloid process
Substances between cells

32. Dental Arteries
The groove below the lower lips that separates the lips from the chin
Supplies blood to the roots and periodontal ligaments of the molars and premolars
A pocket formed by the soft tissue of cheeks and gingiva
Constricts the nasopharyngeal passage and elevates the larynx

33. Alveolar Crest Fiber Group
The development of different cells
Function to resist rotational forces and tilting
Shed from the oral cavity
Act to maintain the gingival integrity of the marginal gingiva

34. Styloid Process
To dissolve
Sharp projection on the under surface of the temporal bone
Outside surface Which is towards the cheek - on posterior teeth
Separates the developing oral cavities from the nasal cavities

35. Articular Disc
Also known as meniscus it is a dense fibrous connective tissue that is thicker at the ends and attached to the condyle
Small curved lines that run parellel to the CEJ
Small head - low nasal bridge - thin upper lip - small mandible
The fixed attachment of a muscle

36. Anterior Alveolar Nerve
Digstric - Mylohyoid - stylohyoid - geniohyoid
Intervates the anterior maxillary sinus - gingiva - cuspids - laterals - and central incisors
Three bulges on the incisal edge
Synovial fluid

37. Paranasal
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine
Cluster of tissue that manufactures and secrets fluid
Folds of tissue that extend horizontally from the uvula to the base of the tongue
Of or pertaining to area surrounding naval cavity

38. Gland
Inside of the maxillary teeth
A junction or center of veins that directly or indirectly drain a vast area
Cluster of tissue that manufactures and secrets fluid
A dense tissue covered with mucous membrane that can withstand chewing

39. Mental Protuberance
Covering over the enamel that is left over from the epithelium ameloblasts
Small linear depression
The tip of the chin
The deepest point of the vestibule

40. Labial-Mental Groove
Respiratory system - digestive system and glandular organs
Looking at the border of the tongue
Drains the facial structures beginning near the eye and descending toward the mandible
The groove below the lower lips that separates the lips from the chin

41. Lingual Nerve Branch
Secrete saliva to assist in process of digestion
The internal surface at the center of the mandible
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars
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

42. Internal Jugular Vein
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein
Vestibule - vestibule fornix - labial mucosa - buccal mucosa - parotid papilla - Stenson's duct - linea alba - Fordyce's spots - alveolar mucosa - gingiva - labial frenum - buccal frenum
Largest facial bone with two sections joined at the median suture
More common in girls--the failure of the palatal shelves to fuse with the primary palate (1 in 2500 births)

43. Function of Geneoglossus?
The corners of the mouth where the top and bottom lip meet
Retracts or depresses the tongue
A triangular area located behind the last molar
Forms the remaining 2/3 of the hard and soft palate uvula

44. Labial Mucosa
Substances between cells
2 to 3 pints
Initiation of the tooth begins
The inner surface of the lips

45. What is the purpose of saliva?
Skeletal or soft tissue structures used as reference points in describing locations of anatomical structures or taking measurements
Located on the inside of the body of the ramus
Forms a large cavity above the roots of the maxillary molars
To lubricate the oral cavity and to moisten food

46. Labial Commissures
A raised area of tissue laying behind the maxillary central incisors on the hard palate
When the dentin is exposed
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx
Corners of the mouth

47. Lamina Dura
Covering over the enamel that is left over from the epithelium ameloblasts
A line that represents the alveolus bone lining the socket
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue
4 cusps/ bifurcated

48. Mandible Arch
The disc becomes displaced
To bulge of curve outward
Lower arch of the teeth
Enamel forming cells

49. Median Sulcus
What divides the tongue in half and runs from the base to the tip of the tongue
2 small raised folds of tissue where the lingual frenum attaches
Developmental segment of a tooth
Retracts or depresses the tongue

50. What are the four main functions of deciduous teeth?
Acts as anchors between the alveolar bone and the tooth
A raised area of tissue laying behind the maxillary central incisors on the hard palate
Mastication - aids in speech - influence facial structure - chewing surfaces
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx