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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.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

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. Dentinal Hypersensitivity
Set of arches found farther in the back of the throat
Linear elevation of the tooth
Fleshy elevation under the tongue
When the dentin is exposed

2. Convex
To bulge of curve outward
Cells From which connective tissue evolve
Surface towards the midline
Forms a large cavity above the roots of the maxillary molars

3. Denticion
Mandibular central incisors
A raised area of tissue laying behind the maxillary central incisors on the hard palate
Natural teeth in position
Duct located on the parotid papilla

4. Stomedeum
Primitive mouth
The deepest point of the vestibule
The largest of the salivary glands which lie just below and in front of the ear
Growth from the oral epithelium that gives rise to the tooth buds

5. Nasolacrimal groove
Located in a depressed area between the pillars
Cells From which connective tissue evolve
Joined at the midline and are often referred to as the median Palatine suture
Extends from the medial corner of the eye to the nasal cavity

6. Common Carotid
Arteries supplying blood to most of the head and the neck
Outside surface Which is towards the lips
When the surface of the teeth becomes grooved
Respiratory system - digestive system and glandular organs

7. Fibroblasts
Tissue covering the alveolar processes
Cells From which connective tissue evolve
Middle two teeth in the mouth
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth

8. Posterior Superior Alveolar Nerve
Quarters of the teeth
Supplies the gingival - maxillary sinus - cheeks - and maxillary molars with the exception of the mesial buccal root of the first molar
Genioglossus - hyoglossus - styloglossus - palatoglossus
A triangular area located behind the last molar

9. Mesial
6 months/3years
Surface towards the midline
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
The largest of the salivary glands which lie just below and in front of the ear

10. Naso Palatine Nerve
Extends interiorly from the pterygopalatine nerve and exits thru the incisive foramen
Forms the bulk of the tooth
Maxillary first molar
An enclosed area that matures into dentin - cementum and pulp

11. Periodontium
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone
Compact bone plate of the facial and lingual surfaces
A shallow v-shaped depression located below the bottom of the nose and above the lips
Origin - fixed point - insertion - movable point

12. Maxillary vein
Dentin found between the tubules
Raised vertical folds of tissue on the lateral border of the tongue
Causes a thickening of the cementum around the apex
Drains the Pterygoid plexus of the veins

13. How can you tell if someone has cancer by looking at the tongue?
Largest papilla - mushroom shaped and are anterior to the sulcus terminalis in a row of 8 to 10
Looking at the border of the tongue
Follows the inside of the ramus and the body of the mandible
Dividing point of a multi-rooted tooth

14. Meniscus
Used to pulverize food
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
Disk that acts like a cushion between the temporal bone and the condyloid process
Where the proximal sides of two teeth come together and touch

15. Sulingual Folds
4th week
Supplies blood to the temporal muscle - masseter muscle - pterygoid muscle and buccanator
Supplies blood to the brain and the eyes
Begin at the caruncles on either side of the frenum and run backward to the base of the tongue

16. Dentoperiosteal Fiber Groups
Intervating the anterior teeth and the labial gingiva
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids
A condition where the lower frenum attachment is very short/DDS/frenectomy
Supportive fibers that anchor the tooth to the bone

17. Enamel Tufts
6 years old
Small dark brushes
Small head - low nasal bridge - thin upper lip - small mandible
The mandibular molars

18. External Auditory Meatus
Trigeminal - facial - glossopharyngeal - hypoglossal
Small head - low nasal bridge - thin upper lip - small mandible
Opening for the ear
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth

19. Labial Commissures
Looking at the border of the tongue
Surface away from the midline
The first predentin that is formed and matures within the tube
The corners of the mouth where the top and bottom lip meet

20. Mesenchyme Tissue
Extreme variations from the norm
Primary embryonic mesoderm layer that develops during the morpho differentiation period
Raised vertical folds of tissue on the lateral border of the tongue
More common in girls--the failure of the palatal shelves to fuse with the primary palate (1 in 2500 births)

21. Quadrants
Assist in depressing the mandible and elevating the tongue
Draws the hyoid bone superiorly and posteriorly and stabilizes it
Quarters of the teeth
Appears to be loosely attached - covering the alveolar bone.

22. When do oral and nasal cavity separate and palate develop?
Curve outward
Excess bone in the middle of the palate
A triangular area located behind the last molar
Week 12

23. Incisive Arteries
Allow flexibility during mastication - speech
Supplies blood to the roots and periodontal ligaments of the interior teeth
Causes a thickening of the cementum around the apex
Cells that form dentin

24. Proliferation
Second teeth next to central incisors
Where the ectoderm layer matures into the enamel
The gingiva in the floor of the gingival sulcus that attaches to the enamel
Two weeks thru 8th week

25. Caruncle
Fleshy elevation under the tongue
Portion of the lips where the skin meets the vermilion zone
Mandibular central incisors
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip

26. Median Sulcus
What divides the tongue in half and runs from the base to the tip of the tongue
Resists forces that try to pull the tooth outward
Genioglossus - hyoglossus - styloglossus - palatoglossus
Primary and permanent

27. Function of Trapezius
Canal or passage for fluid
Largest papilla - mushroom shaped and are anterior to the sulcus terminalis in a row of 8 to 10
Moves the head backward and laterally
Triangular space in the gingival direction when two adjacent teeth are in contact

28. Attrition
Innervates the orbicular oculi - the area around the eye - and the area around and behind the zygomatic arch
The study of the microscopic structure and functions of tissues
10 days
Wearing away of the incisal or occlusal surfaces of the tooth

29. When do the tooth buds appear?
Week 11
4 cusps/ bifurcated
Small yellowish glands on the labial mucosa
Substances between cells

30. What is the purpose of permanent teeth?
Cut - tear - and grind food
Mastication - aids in speech - influence facial structure - chewing surfaces
Shaping the tongue during speech - mastication and swallowing
Tooth emerges from gum tissue and becomes visible

31. Hypercementosis
When the tissue becomes inflamed
The internal surface at the center of the mandible
Causes a thickening of the cementum around the apex
An overgrowth of the gingival tissue

32. When does the maxillary second molar erupt?
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars
Drains the superficial veins of the face and neck into the subclavian vein
Synovial fluid
12 years

33. Which molar contains the cusp of Caribelli?
Vestibule - vestibule fornix - labial mucosa - buccal mucosa - parotid papilla - Stenson's duct - linea alba - Fordyce's spots - alveolar mucosa - gingiva - labial frenum - buccal frenum
Maxillary first molar
Mildest form of cleft palate
Calcium salts are deposited into formed tooth

34. Imbritation Lines of Von Eboner
Surface towards the midline
Tubules that pass through the entire surface of the dentin
Stained growth rings in dentin
The space between the unattached gingiva and the tooth

35. Maxillary Sinus
6 years old
Pointed or rounded mounds on the crown of the tooth
Forms a large cavity above the roots of the maxillary molars
Developmental segment of a tooth

36. Labial
Dentin found between the tubules
An extension of an unattached gingiva and the tooth
Cheek bones--the most breakable bone in the body
Outside surface Which is towards the lips

37. What are the two muscles of the soft palate?
An enclosed area that matures into dentin - cementum and pulp
Substances between cells
Drains the floor of the mouth
Palatoglossus - palatopharyngeal

38. Mixed Dentition
Drains the superficial veins of the face and neck into the subclavian vein
Outside surface Which is towards the lips
Elevated are of enamel that forms the Mesial and distal borders
A period of both primary teeth and permeant teeth are in the dentition

39. Cusp of Caribelli
Narrow long enamel tuft
Small head - low nasal bridge - thin upper lip - small mandible
Orbicularis oris - buccinator - mentalis - zygomatic major
Fifth cusp located on the mesial surface lingual surface of maxillary first molars

40. Function of Hyoglossus
The deepest point of the vestibule
Depresses the tongue
Formed by the fibroblast cells and secures the tooth in the socket
Forms into dentin - cementum and pulp of the teeth

41. Ligament
Band of fibrous tissue which attaches bone to bone
An enclosed area that matures into dentin - cementum and pulp
Separation of the upper lip ( 1 of 1000 live births)
Supplies the gingival - maxillary sinus - cheeks - and maxillary molars with the exception of the mesial buccal root of the first molar

42. Genial Tubercles
Small bony projections surrounding the lingual foramen
Week 11
Also known as meniscus it is a dense fibrous connective tissue that is thicker at the ends and attached to the condyle
Layers of tooth tissue become calcified

43. Dental Lamina
Acts as anchors between the alveolar bone and the tooth
Formed by the fibroblast cells and secures the tooth in the socket
Pointed or rounded mounds on the crown of the tooth
Growth from the oral epithelium that gives rise to the tooth buds

44. How many cusps/ roots do the 2/3rd mandibular molars have?
Forms into the inner lining of the oral cavitiy and enamel of the teeth
4 cusps/ bifurcated
Place where the groove comes together or fissures cross
Forms after the completion of the apical foramen

45. Retromolar Area
A triangular area located behind the last molar
Dentin found between the tubules
Surface towards the midline
Ala of the nose - naso-labial groove - philtrum - vermilion border - vermilion zone - turbercle of the lip - labial commissures - labio-mental grooves

46. Histo Differentiation
Cells develop into different tissues
Draws down the mandible and corners of the mouth
Drains the facial structures beginning near the eye and descending toward the mandible
Supplies blood to the roots and periodontal ligaments of the interior teeth

47. Imbracation Lines
Secrete saliva to assist in process of digestion
Small curved lines that run parellel to the CEJ
A concave area where two bones of the mandible are fused in the center of the mandible on the external surface
Mastication - aids in speech - influence facial structure - chewing surfaces

48. Lingual Veins
Second teeth next to central incisors
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine
Bluish veins that run the length of the tongue
Aid in attaching the gingiva to the alveolar bone

49. Vermilion Border
Portion of the lips where the skin meets the vermilion zone
Greater - lesser - naso palatine nerves
Bi-cuspids
Of or pertaining to area surrounding naval cavity

50. Epithelial Attachment
The gingiva in the floor of the gingival sulcus that attaches to the enamel
(free gingiva) surrounds the teeth
Natural teeth in position
Growth from the oral epithelium that gives rise to the tooth buds