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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. Mesial
Surface towards the midline
Covers muscle tissue in the posterior portion of the palate
The development of different forms
Small dark brushes

2. Mantle Dentin
The first predentin that is formed and matures within the tube
2 to 3 pints
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
Study of prenatal growth and the developing process of an individual

3. Mylohyoid Nerve Branch
Bluish veins that run the length of the tongue
Rounded depression on a tooth
Pulverizing or chewing surface
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle

4. Middle Superior Alveolar Nerve
Where the ectoderm layer matures into the enamel
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids
Forms the bulk of the tooth
Short tubules that seem to crossover to the enamel

5. Alveolar Crest
Two cortical bone plates that come together between each tooth
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars
Origin - fixed point - insertion - movable point
Demonstrates a disturbance in the body metabolism

6. Function of Trapezius
A horseshoe shaped groove that follow the curve of the dental arch
Resist rotational forces and hold teeth in inter-proximal contact
Moves the head backward and laterally
Occurs in unusual ways and distorted crowns may appear

7. What are the characteristics of deciduous teeth?
Cluster of tissue that manufactures and secrets fluid
Triferacated
Smaller - enamel thicker - pulp chamber is larger is larger - bifurcation wider
Set of arches found farther in the back of the throat

8. Attrition
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth
Wearing away of the incisal or occlusal surfaces of the tooth
Lower arch of the teeth
Inside of the maxillary teeth

9. External Oblique Ridge
Follows the length of the body of the mandible past the last tooth and up to the ramus
Teeth after cuspids
Forms the bulk of the tooth
Assist in depressing the mandible and elevating the tongue

10. Frenum
Divides the crown and the root
Small bony projections surrounding the lingual foramen
The development of different tissues
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip

11. Buccal
Mildest form of cleft palate
Pointed or rounded mounds on the crown of the tooth
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle
Outside surface Which is towards the cheek - on posterior teeth

12. Mastoid process
Bony projection found on the bottom border of the temporal bone
A condition where the lower frenum attachment is very short/DDS/frenectomy
Sharp projection on the under surface of the temporal bone
A projection that extends off the back of the soft palate

13. What is the largest cranial nerve and the most important to dental auxillaries and why?
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein
Middle line of the teeth
Indented
Trigeminal nerve--because it ennervates the maxilla and the mandible

14. TMJ bones are bathed In what solution?
Separates the developing oral cavities from the nasal cavities
Located on the inside of the body of the ramus
A period of both primary teeth and permeant teeth are in the dentition
Synovial fluid

15. Posterior Superior Alveolar Nerve
Drains the floor of the mouth
Joined at the midline and are often referred to as the median Palatine suture
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine
Supplies the gingival - maxillary sinus - cheeks - and maxillary molars with the exception of the mesial buccal root of the first molar

16. Retro Mandibular Vein
Drains the maxiallary artery and superficial temporal arteries
Supplies blood to the temporal muscle - masseter muscle - pterygoid muscle and buccanator
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars
Upper arch of the teeth

17. Interdental Gingiva
A duct that empties into the mouth thru the parotid papilla - Parotid gland goes with Stensen's duct
Tubules that pass through the entire surface of the dentin
A junction or center of veins that directly or indirectly drain a vast area
An extension of an unattached gingiva and the tooth

18. Mandible Arch
Band of fibrous tissue which attaches bone to bone
Lower arch of the teeth
The slightly raised line extending down the middle of the hard palate
Vertical groove on the midline of the upper lip

19. Clinical root
Small yellowish glands on the labial mucosa
Portion of the root seen in the oral cavity
A horseshoe shaped groove that follow the curve of the dental arch
Substances between cells

20. Histo Differentation
Natural teeth in position
Cells that form cementum
The development of different tissues
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine

21. Lingual Vein
Acts as anchors between the alveolar bone and the tooth
Drains the floor of the mouth
A line of demarcation between the attached gingiva and alveolar mucosa
Radiates from the developmental groove

22. Cyto differentiation
Small yellowish glands on the labial mucosa
The development of different tissues
The development of different cells
Largest of the branches of the external carotid artery; supplies facial structure

23. Apposition
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth
Where the ectoderm layer matures into the enamel
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx
Calcium salts are deposited into formed tooth

24. Incisive Nerve branch
Intervating the anterior teeth and the labial gingiva
Indented
When the dentin is exposed
Slight ridges on the cervical third of certain teeth that extend mesiodistally

25. Lingual Nerve Branch
Bifurcated/ 5 cusps
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine
The groove below the lower lips that separates the lips from the chin
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

26. Embrasure
Enamel forming cells
Ala of the nose - naso-labial groove - philtrum - vermilion border - vermilion zone - turbercle of the lip - labial commissures - labio-mental grooves
Arteries supplying blood to most of the head and the neck
Triangular space in the gingival direction when two adjacent teeth are in contact

27. Neonatal line
Small linear depression
2 small raised folds of tissue where the lingual frenum attaches
6 years old
Incremental line indicating trauma of birth

28. Histo Differentiation
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
Excess bone in the middle of the palate
Cells develop into different tissues
Oval depression of temporal bone in condyloid process

29. Intertubular Dentin
Duct located on the parotid papilla
Dentin found between the tubules
Maxillary third molar
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip

30. Xygomatic bones
Interdental ligament
Cheek bones--the most breakable bone in the body
A projection that extends off the back of the soft palate
Tissue covering the alveolar processes

31. What are the four main functions of deciduous teeth?
Cells that form dentin
Covers muscle tissue in the posterior portion of the palate
Mastication - aids in speech - influence facial structure - chewing surfaces
The bone that separates the root on a tooth

32. Alveolus
Initiation of the tooth begins
Bone that surrounds the root of the tooth
(free gingiva) surrounds the teeth
Developmental segment of a tooth

33. Mixed Dentition
Portion of the lips where the skin meets the vermilion zone
A flap of tissue on the on the buccal mucosa
A period of both primary teeth and permeant teeth are in the dentition
Tubules that pass through the entire surface of the dentin

34. What teeth are removed if overcrowding occurs?
Intervates the anterior maxillary sinus - gingiva - cuspids - laterals - and central incisors
Found near the cementoenamel junction
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein
Bicuspids

35. What are the 4 extrinsic muscles of the tongue
Small curved lines that run parellel to the CEJ
Genioglossus - hyoglossus - styloglossus - palatoglossus
9 months (5 months ultrasound to tell sex)
Teeth after cuspids

36. Occlusal
A line of tissue that extends from the tongue to the floor of the mouth
10 days
Pulverizing or chewing surface
The first predentin that is formed and matures within the tube

37. Morpho differentiation
The deepest point of the vestibule
Responsible for laying down the enamel matrix into place
The development of different forms
Drains the superficial veins of the face and neck into the subclavian vein

38. Lesser Palatine Foramen
Bluish veins that run the length of the tongue
Two smaller openings located behind the greater Palatine Foramen in the posterior region of the hard palate
When the surface of the teeth becomes grooved
To dissolve

39. Maxillary Sinus
Portion covered with cementum
Forms a large cavity above the roots of the maxillary molars
The layer of dentin that surrounds the pulp
Bluish veins that run the length of the tongue

40. When do the tooth buds appear?
Extends from the mucogingival junction to the gingival groove
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx
Drains the maxiallary artery and superficial temporal arteries
Week 11

41. Tubercle of the Lip
A small projection in the middle of the upper lip
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx
To lubricate the oral cavity and to moisten food
Pointed or rounded mounds on the crown of the tooth

42. Salivary Glands
Small dark brushes
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein
The internal surface at the center of the mandible
Secrete saliva to assist in process of digestion

43. Sublingual Caruncles
Small dark brushes
Drains the Pterygoid plexus of the veins
When the surface of the teeth becomes grooved
2 small raised folds of tissue where the lingual frenum attaches

44. What is the maxillary cuspid known as?
When the surface of the teeth becomes grooved
Chewing and swallowing food
The cornerstone of the mouth
The disc becomes displaced

45. What is the function of the buccle nerve branch?
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars
Portion of the lips where the skin meets the vermilion zone
Upper arch of the teeth
A dense tissue covered with mucous membrane that can withstand chewing

46. What is the latin word for molar?
Excess bone formations under the tongue on the alvellar bone
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue
Forms the bulk of the tooth
Molaris meaning millstone

47. Dental Lamina
Growth from the oral epithelium that gives rise to the tooth buds
Triferacated
Canal or passage for fluid
The largest of the salivary glands which lie just below and in front of the ear

48. Labial-Mental Groove
Indented
The groove below the lower lips that separates the lips from the chin
Lining covers inside of the oral cavity
Wings of the sphenoid bone

49. Posterior Teeth
The teeth located at the back of the mouth
Lower arch of the teeth
Conception thru the first two weeks
Ligaments and muscles of mastication

50. Cemental Spurs
Located on the inside of the body of the ramus
Found near the cementoenamel junction
To dissolve
Two