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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.
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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. Gingival Sulcus
Opening for the ear
The space between the unattached gingiva and the tooth
Opening in the mouth below the orbit on the maxillary bone
Depresses the tongue

2. Xygote
Cells develop into different tissues
Trigeminal - facial - glossopharyngeal - hypoglossal
Conception thru the first two weeks
The inner surface of the lips

3. Maxillary Arch
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged
Begin at the caruncles on either side of the frenum and run backward to the base of the tongue
Three cusps/ trifurcated
Upper arch of the teeth

4. Function of Geniohyoid
A duct that empties into the mouth thru the parotid papilla - Parotid gland goes with Stensen's duct
Triangular space in the gingival direction when two adjacent teeth are in contact
Compact bone plate of the facial and lingual surfaces
Pulls the hyoid bone and the tongue anteriorly

5. Fossa
Rounded depression on a tooth
Layers of tooth tissue become calcified
Disk that acts like a cushion between the temporal bone and the condyloid process
The line of demarcation between the attached gingiva and the marginal gingiva

6. Alveologingival Fiber Groups
Linear elevation of the tooth
Aid in attaching the gingiva to the alveolar bone
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue
To lubricate the oral cavity and to moisten food

7. Pit
The corners of the mouth where the top and bottom lip meet
Place where the groove comes together or fissures cross
A condition where the lower frenum attachment is very short/DDS/frenectomy
Used to pulverize food

8. Periodontium
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone
Triangular space in the gingival direction when two adjacent teeth are in contact
The development of different forms
Incremental lines around the layers of the enamel matrix

9. Bud stage
Supplies blood to the temporal muscle - masseter muscle - pterygoid muscle and buccanator
Joined at the midline and are often referred to as the median Palatine suture
Initiation of the tooth begins
Calcified masses of dentin

10. Mesial
Found near the cementoenamel junction
Folds of tissue to the the lingual veins
Radiates from the developmental groove
Surface towards the midline

11. Gland
A condition where the lower frenum attachment is very short/DDS/frenectomy
Palatoglossus - palatopharyngeal
Cluster of tissue that manufactures and secrets fluid
No bicuspids/ no 3rd molars

12. Mantle Dentin
The first predentin that is formed and matures within the tube
A shallow v-shaped depression located below the bottom of the nose and above the lips
Constricts the nasopharyngeal passage and elevates the larynx
Origin - fixed point - insertion - movable point

13. What are the 2 sets of teeth?
Primary and permanent
A bat shaped bone which forms the anterior portion of the skull
A bony projection that separates each socket
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged

14. Mandibular Foramen
Respiratory system - digestive system and glandular organs
Folds of tissue that extend horizontally from the uvula to the base of the tongue
Tissue fluid surrounding the cell membrane of the odontoblast
Located on the inside of the body of the ramus

15. How many teeth are in the Primary teeth?
Intervating the anterior teeth and the labial gingiva
20
Resists forces that try to pull the tooth outward
2 to 3 pints

16. Lamina Dura
Week 12
Chewing and swallowing food
Shaping the tongue during speech - mastication and swallowing
A line that represents the alveolus bone lining the socket

17. Internal Oblique Ridge
To lubricate the oral cavity and to moisten food
Dentin found between the tubules
Follows the inside of the ramus and the body of the mandible
Extreme variations from the norm

18. Cleft Uvula
Mildest form of cleft palate
A flap of tissue on the on the buccal mucosa
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle

19. Fungiform Papillae
An extension of an unattached gingiva and the tooth
Papillae that give the tongue the strawberry effect
Covers muscle tissue in the posterior portion of the palate
Cells develop into different tissues

20. Oblique Fiber Group
Stained growth rings in dentin
Resists intrusive forces that try to push the tooth inwards
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
Platysma - trapezius - sternocleidomastoid

21. What are the characteristics of deciduous teeth?
Middle line of the teeth
Forms a large cavity above the roots of the maxillary molars
A concave area where two bones of the mandible are fused in the center of the mandible on the external surface
Smaller - enamel thicker - pulp chamber is larger is larger - bifurcation wider

22. Dentinal Tubules
A concave area where two bones of the mandible are fused in the center of the mandible on the external surface
Tubules that pass through the entire surface of the dentin
Narrow long enamel tuft
Disk that acts like a cushion between the temporal bone and the condyloid process

23. Quadrants
The cornerstone of the mouth
Teeth will not erupt in proper position
Quarters of the teeth
A bony projection that separates each socket

24. Pterygoid plexus of the veins
The line of demarcation between the attached gingiva and the marginal gingiva
Responsible for laying down the enamel matrix into place
A junction or center of veins that directly or indirectly drain a vast area
Excess dryness of the mouth

25. Styloid Process
The disc becomes displaced
Supplies blood to the face and oral cavity
Sharp projection on the under surface of the temporal bone
Opening for the ear

26. Salivary Glands
Secrete saliva to assist in process of digestion
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
Forms a large cavity above the roots of the maxillary molars
Aid in attaching the gingiva to the alveolar bone

27. What is the maxillary cuspid known as?
Triangular space in the gingival direction when two adjacent teeth are in contact
The cornerstone of the mouth
Lining covers inside of the oral cavity
Assists in elevating the chin

28. Circumpulpal Dentin
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue
The layer of dentin that surrounds the pulp
Cut - tear - and grind food
Disk that acts like a cushion between the temporal bone and the condyloid process

29. Pulpitis
Function to resist rotational forces and tilting
No bicuspids/ no 3rd molars
When the tissue becomes inflamed
Demonstrates a disturbance in the body metabolism

30. Muscle Insertion
The moveable attachment of the muscle
Forms the bulk of the tooth
9 weeks thru birth
Papillae that give the tongue the strawberry effect

31. Submandibular Glands

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32. Stensens' Duct (aka Parotid)

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33. Buccal Mucosa
Forms into the inner lining of the oral cavitiy and enamel of the teeth
The inner surface of the cheeks
Tooth emerges from gum tissue and becomes visible
Triferacated

34. Interradicular Septum
Growth from the oral epithelium that gives rise to the tooth buds
Folds of tissue to the the lingual veins
The bone that separates the root on a tooth
Portion covered with cementum

35. Middle Superior Alveolar Nerve
The deepest point of the vestibule
10 days
Upper arch of the teeth
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids

36. Evanesce
The area on the crown of the tooth that is nearest the gingival
Third tooth from the midline
To dissolve
Greater - lesser - naso palatine nerves

37. What is the purpose of saliva?
Molaris meaning millstone
Tributary of the facial vein which connects the facial vein to the pterygoid plexus of the veins
To lubricate the oral cavity and to moisten food
Inside of the maxillary teeth

38. Mesenchyme Tissue
The largest of three openings located in the posterior region of the hard palate
Outside surface Which is towards the lips
Primary embryonic mesoderm layer that develops during the morpho differentiation period
A projection that extends off the back of the soft palate

39. Retro Mandibular Vein
The bone that separates the root on a tooth
Tubules that pass through the entire surface of the dentin
Used to pulverize food
Drains the maxiallary artery and superficial temporal arteries

40. Central Incisor
4/5 cusps/ 3 roots
Where the proximal sides of two teeth come together and touch
Ala of the nose - naso-labial groove - philtrum - vermilion border - vermilion zone - turbercle of the lip - labial commissures - labio-mental grooves
Middle two teeth in the mouth

41. Labial Commissures
Corners of the mouth
Looking at the border of the tongue
Wearing away of the incisal or occlusal surfaces of the tooth
Circle and tighten the gingival margin around the neck of the tooth

42. Lingual Foramen
The internal surface at the center of the mandible
The connective tissue of the marginal gingiva
Forms into the inner lining of the oral cavitiy and enamel of the teeth
The largest of the salivary glands which lie just below and in front of the ear

43. Secondary Dentin
Forms after the completion of the apical foramen
Resists intrusive forces that try to push the tooth inwards
Cells that form dentin
A bony projection that separates each socket

44. When does the maxillary second molar erupt?
Ligaments and muscles of mastication
12 years
Initiation of the tooth begins
Largest papilla - mushroom shaped and are anterior to the sulcus terminalis in a row of 8 to 10

45. Secondary palate
Resists intrusive forces that try to push the tooth inwards
Lower arch of the teeth
Supplies blood to the roots and periodontal ligaments of the interior teeth
Forms the remaining 2/3 of the hard and soft palate uvula

46. Endoderm
Outside surface Which is towards the cheek - on posterior teeth
Synovial fluid
Respiratory system - digestive system and glandular organs
4 cusps/ bifurcated

47. Apposition
Scroll like bones outside the nasal cavaties
Forms after the completion of the apical foramen
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
Calcium salts are deposited into formed tooth

48. Naso Palatine Nerve
Dividing point of a multi-rooted tooth
A line of tissue that extends from the tongue to the floor of the mouth
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars
Extends interiorly from the pterygopalatine nerve and exits thru the incisive foramen

49. Groove
Forms a large cavity above the roots of the maxillary molars
Small linear depression
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth
Tributary of the facial vein which connects the facial vein to the pterygoid plexus of the veins

50. Maxillary Artery
Largest of the branches of the external carotid artery; supplies facial structure
A shallow v-shaped depression located below the bottom of the nose and above the lips
Peg shaped crown with a smooth surface
Layers of tooth tissue become calcified