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Dental Assisting: Head And Neck Anatomy

Subjects : health-sciences, dentistry

Instructions:

Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can study here.
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. Submandibular Glands

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2. Incisal third
The moveable attachment of the muscle
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth
The crown of the tooth that is nearest the incisal edge near the anterior tooth
The fixed attachment of a muscle

3. Which molar contains the cusp of Caribelli?
The layer of dentin that surrounds the pulp
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue
Maxillary first molar
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars

4. Periodontal Ligaments
Supplies blood to the temporal muscle - masseter muscle - pterygoid muscle and buccanator
Short tubules that seem to crossover to the enamel
Formed by the fibroblast cells and secures the tooth in the socket
Enamel is thinner - pulp chamber is smaller -

5. Gingival Groove
Triferacated
Pointed elongations of the pulp
Pulverizing or chewing surface
The line of demarcation between the attached gingiva and the marginal gingiva

6. Fossa
A bony projection that separates each socket
Lower arch of the teeth
A period of both primary teeth and permeant teeth are in the dentition
Rounded depression on a tooth

7. Maxillary Arch
Retracts or depresses the tongue
Anterior to the ethmoid bone and part of the orbit (corners of the eye)
Where the ramus meets the body of the mandible on the outside border
Upper arch of the teeth

8. Nasolacrimal groove
Arteries supplying blood to most of the head and the neck
Opening for the ear
Extends from the medial corner of the eye to the nasal cavity
A raised area of tissue laying behind the maxillary central incisors on the hard palate

9. How many cusps/ roots do the 2/3rd mandibular molars have?
Developmental segment of a tooth
4 cusps/ bifurcated
What divides the tongue in half and runs from the base to the tip of the tongue
Begin at the caruncles on either side of the frenum and run backward to the base of the tongue

10. Pulp horns
Pointed elongations of the pulp
The slightly raised line extending down the middle of the hard palate
Mastication - aids in speech - influence facial structure - chewing surfaces
Extreme variations from the norm

11. What teeth do the deciduous (baby) tooth not include?
Ligaments and muscles of mastication
Origin of the tooth
Forming organ takes shape and resembles the shape of a bell
No bicuspids/ no 3rd molars

12. Supplemental Groove
Raised vertical folds of tissue on the lateral border of the tongue
Maxillary third molar
Radiates from the developmental groove
A horseshoe shaped groove that follow the curve of the dental arch

13. Fibroblasts
What divides the tongue in half and runs from the base to the tip of the tongue
Cells From which connective tissue evolve
The bone that separates the root on a tooth
When cells rapidly increase in number

14. Fetus
Where the ramus meets the body of the mandible on the outside border
Tributary of the facial vein which connects the facial vein to the pterygoid plexus of the veins
Primitive mouth
9 weeks thru birth

15. Mucogingival Junction
A line of demarcation between the attached gingiva and alveolar mucosa
The study of the microscopic structure and functions of tissues
Raised vertical folds of tissue on the lateral border of the tongue
A line of tissue that extends from the tongue to the floor of the mouth

16. Frenum
Occurs in unusual ways and distorted crowns may appear
A duct that empties into the mouth thru the parotid papilla - Parotid gland goes with Stensen's duct
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip
Innervates the orbicular oculi - the area around the eye - and the area around and behind the zygomatic arch

17. Triangular Ridge
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface
Week 11
Assist in the movement and functioning of the tongue
Draws the hyoid bone superiorly and posteriorly and stabilizes it

18. Maxillary Sinus
Orbicularis oris - buccinator - mentalis - zygomatic major
Moves the head backward and laterally
Forms a large cavity above the roots of the maxillary molars
Origin of the tooth

19. Labial Commissures
Primitive mouth
Maxillary third molar
The corners of the mouth where the top and bottom lip meet
Chewing and swallowing food

20. Cingulum
Where the ramus meets the body of the mandible on the outside border
A line of tissue that extends from the tongue to the floor of the mouth
Convex area on the lingual surface near gingiva
Pulverizing or chewing surface

21. Contour Lines of Owen
Smaller - enamel thicker - pulp chamber is larger is larger - bifurcation wider
Secrete saliva to assist in process of digestion
Demonstrates a disturbance in the body metabolism
Conception thru the first two weeks

22. What are the 4 taste senses and where are they located?
An extension of an unattached gingiva and the tooth
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue
Allow flexibility during mastication - speech

23. Odontal Fiber Groups
Allow flexibility during mastication - speech
Opening for the ear
Cells From which connective tissue evolve
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue

24. Foliate Papillae
Raised vertical folds of tissue on the lateral border of the tongue
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth
Palatoglossus - palatopharyngeal
The inner surface of the lips

25. Lesser Palatine Foramen
A flap of tissue on the on the buccal mucosa
Radiates from the developmental groove
Two smaller openings located behind the greater Palatine Foramen in the posterior region of the hard palate
Convex area on the lingual surface near gingiva

26. External Jugular Vein
Intervates the anterior maxillary sinus - gingiva - cuspids - laterals - and central incisors
Digstric - Mylohyoid - stylohyoid - geniohyoid
Drains the superficial veins of the face and neck into the subclavian vein
Pointed or rounded mounds on the crown of the tooth

27. Clinical root
Vestibule - vestibule fornix - labial mucosa - buccal mucosa - parotid papilla - Stenson's duct - linea alba - Fordyce's spots - alveolar mucosa - gingiva - labial frenum - buccal frenum
Located behind the ramus of the mandible and branches into five arteries
Band of fibrous tissue which attaches muscle to bone
Portion of the root seen in the oral cavity

28. What are the 4 maxillary nerve branches?
Also known as meniscus it is a dense fibrous connective tissue that is thicker at the ends and attached to the condyle
Scroll like bones outside the nasal cavaties
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine
Interdental ligament

29. Primary Dentin
The study of the microscopic structure and functions of tissues
Forms the bulk of the tooth
Supplies blood to the roots and periodontal ligaments of the molars and premolars
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

30. Greater Palatine Nerve
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth
The layer of dentin that surrounds the pulp
Separates the developing oral cavities from the nasal cavities
The cornerstone of the mouth

31. Neonatal line
Vestibule - vestibule fornix - labial mucosa - buccal mucosa - parotid papilla - Stenson's duct - linea alba - Fordyce's spots - alveolar mucosa - gingiva - labial frenum - buccal frenum
A triangular area located behind the last molar
Incremental line indicating trauma of birth
Intervating the anterior teeth and the labial gingiva

32. Morpho Differentiation
Responsible for laying down the enamel matrix into place
Forming organ takes shape and resembles the shape of a bell
12 years
The slightly raised line extending down the middle of the hard palate

33. Rami
Mucosa that covers the alveolar bone
Three cusps/ trifurcated
Two vertical extensions of the mandible
Temporal muscles - masseter muscles - internal pterygoid muscles - external pterygoid muscles

34. What is the longest tooth in the mandibular arch?
A flap of tissue on the on the buccal mucosa
The mandibular first premolar
Follows the inside of the ramus and the body of the mandible
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

35. What is the smallest tooth in dentition?
Supplies blood to the roots and periodontal ligaments of the interior teeth
Full deep rich sound in nasal cavity
A concave area where two bones of the mandible are fused in the center of the mandible on the external surface
Mandibular central incisors

36. What are the only permeant teeth that are not succedaneous?
Molars
The portion of the tooth that meets the gingiva
To lubricate the oral cavity and to moisten food
Where the proximal sides of two teeth come together and touch

37. Hypercementosis
The tip of the chin
Causes a thickening of the cementum around the apex
Short tubules that seem to crossover to the enamel
Scroll like bones outside the nasal cavaties

38. How is the TMJ supported and what controls their movement?
A junction or center of veins that directly or indirectly drain a vast area
Creates the wall of the dentinal tubule
Ligaments and muscles of mastication
Substances between cells

39. What is the function of the buccle nerve branch?
A small projection in the middle of the upper lip
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars
Supportive fibers that anchor the tooth to the bone
Used to pulverize food

40. Gland
Cluster of tissue that manufactures and secrets fluid
A projection that extends off the back of the soft palate
Primary embryonic mesoderm layer that develops during the morpho differentiation period
Genioglossus - hyoglossus - styloglossus - palatoglossus

41. How many cusps/ roots do the 2/3rd maxillary molars have?
Three cusps/ trifurcated
The moveable attachment of the muscle
The layer of dentin that surrounds the pulp
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface

42. Eruption
Calcium salts are deposited into formed tooth
Tooth emerges from gum tissue and becomes visible
Respiratory system - digestive system and glandular organs
Portion of the lips that are red

43. Maxillary Artery
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone
Incremental lines around the layers of the enamel matrix
Largest of the branches of the external carotid artery; supplies facial structure
Clear fluid secreted by the salivary and mucous glands throughout the mouth

44. Mandibular Artery
Aid in attaching the gingiva to the alveolar bone
Located behind the ramus of the mandible and branches into five arteries
The gingiva in the floor of the gingival sulcus that attaches to the enamel
Resists intrusive forces that try to push the tooth inwards

45. Apical Fiber Group
Act to maintain the gingival integrity of the marginal gingiva
Mandibular central incisors
Resists forces that try to pull the tooth outward
Where the proximal sides of two teeth come together and touch

46. Peritubular Dentin
Creates the wall of the dentinal tubule
A bony projection that separates each socket
Temporal muscles - masseter muscles - internal pterygoid muscles - external pterygoid muscles
Opening for the ear

47. Midline
Middle line of the teeth
Portion of the root seen in the oral cavity
10 days
Elevated area fo enamel that extends obliquely across the occlusal surface of the tooth

48. Function of Trapezius
The groove below the lower lips that separates the lips from the chin
A small projection in the middle of the upper lip
Moves the head backward and laterally
Small head - low nasal bridge - thin upper lip - small mandible

49. Common Carotid
Fleshy elevation under the tongue
Bicuspids
Arteries supplying blood to most of the head and the neck
Cluster of tissue that manufactures and secrets fluid

50. External Oblique Ridge
A line that represents the alveolus bone lining the socket
Study of the structure and form of the teeth
Lining covers inside of the oral cavity
Follows the length of the body of the mandible past the last tooth and up to the ramus