Test your basic knowledge |

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. Calcification
The crown of the tooth that is nearest the incisal edge near the anterior tooth
Layers of tooth tissue become calcified
Assist in the movement and functioning of the tongue
The disc becomes displaced

2. Sublingual Caruncles
Found near the cementoenamel junction
Cells that form dentin
Interdental ligament
2 small raised folds of tissue where the lingual frenum attaches

3. Duct
Primitive mouth
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone
Opening for the ear
Canal or passage for fluid

4. Sulingual Folds
Begin at the caruncles on either side of the frenum and run backward to the base of the tongue
A duct that empties into the mouth thru the parotid papilla - Parotid gland goes with Stensen's duct
Linear elevation of the tooth
Enamel forming cells

5. Interdental Ligament Group
Two vertical extensions of the mandible
Set of arches found farther in the back of the throat
Resist rotational forces and hold teeth in inter-proximal contact
Extends from the medial corner of the eye to the nasal cavity

6. Peritubular Dentin
Creates the wall of the dentinal tubule
Tissue covering the alveolar processes
Excess bone in the middle of the palate
Chewing and swallowing food

7. Lamina Propria
The connective tissue of the marginal gingiva
Aid in attaching the gingiva to the alveolar bone
A bony plate covered with keratinized tissue located in the anterior portion of the palate
Three cusps/ trifurcated

8. Groove
Small raised projections where taste buds are located
Pulls the hyoid bone and the tongue anteriorly
Small linear depression
Cells that form cementum

9. Ridge
Mastication - aids in speech - influence facial structure - chewing surfaces
An extension of an unattached gingiva and the tooth
Supplies blood to the roots and periodontal ligaments of the molars and premolars
Linear elevation of the tooth

10. Linea Alba
Forming organ takes shape and resembles the shape of a bell
Extends from the medial corner of the eye to the nasal cavity
A raised white line that runs parallel to where the teeth meet on the buccal mucosa
The slightly raised line extending down the middle of the hard palate

11. Alveolar Mucosa
A period of both primary teeth and permeant teeth are in the dentition
Appears to be loosely attached - covering the alveolar bone.
Ala of the nose - naso-labial groove - philtrum - vermilion border - vermilion zone - turbercle of the lip - labial commissures - labio-mental grooves
Forms the remaining 2/3 of the hard and soft palate uvula

12. Perikymata
Papillae that give the tongue the strawberry effect
The line of demarcation between the attached gingiva and the marginal gingiva
Small grooves noted on some teeth
Tissue fluid surrounding the cell membrane of the odontoblast

13. Mesoderm
Forms into dentin - cementum and pulp of the teeth
Greater - lesser - naso palatine nerves
A period of both primary teeth and permeant teeth are in the dentition
The largest of the salivary glands which lie just below and in front of the ear

14. Apposition
Smaller - enamel thicker - pulp chamber is larger is larger - bifurcation wider
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip
Calcium salts are deposited into formed tooth
A bony projection that separates each socket

15. Internal Jugular Vein
Origin of the tooth
Chewing and swallowing food
Mucosa that covers the alveolar bone
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein

16. Dentinal Fluid
Trigeminal nerve--because it ennervates the maxilla and the mandible
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth
Tissue fluid surrounding the cell membrane of the odontoblast
The crown of the tooth that is nearest the incisal edge near the anterior tooth

17. Hypercementosis
Maxillary first molar
Small head - low nasal bridge - thin upper lip - small mandible
Causes a thickening of the cementum around the apex
Chewing and swallowing food

18. Sublingual Sulcus
A horseshoe shaped groove that follow the curve of the dental arch
4 cusps/ bifurcated
An enclosed area that matures into dentin - cementum and pulp
The first predentin that is formed and matures within the tube

19. Internal Oblique Ridge
Follows the inside of the ramus and the body of the mandible
Tissue fluid surrounding the cell membrane of the odontoblast
Duct located on the parotid papilla
A dense tissue covered with mucous membrane that can withstand chewing

20. Mylohyoid Artery
Band of fibrous tissue which attaches bone to bone
Branches off the inferior alveolar artery before intering the mandibular canal
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth
Supplies blood to the roots and periodontal ligaments of the interior teeth

21. Torus
Vertical groove on the midline of the upper lip
Excess bone in the middle of the palate
A junction or center of veins that directly or indirectly drain a vast area
Healthy gingival tissue with an orange texture

22. What are the 3 branches of the pterygopalatine nerve branch?
Resulting from an imperfect union where the lobes come together
Greater - lesser - naso palatine nerves
Retracts the tongue and raises the tip of the tongue
2 small raised folds of tissue where the lingual frenum attaches

23. Morpho Differentiation
Band of fibrous tissue which attaches bone to bone
Three bulges on the incisal edge
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein
Forming organ takes shape and resembles the shape of a bell

24. When do the primary teeth begin erupting and are fully erupted?
Elevated area fo enamel that extends obliquely across the occlusal surface of the tooth
Incremental line indicating trauma of birth
When cells rapidly increase in number
6 months/3years

25. Lingual Nerve Branch
Healthy gingival tissue with an orange texture
Enamel forming cells
Appears to be loosely attached - covering the alveolar bone.
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. Function of Trapezius
Moves the head backward and laterally
32
Smaller - enamel thicker - pulp chamber is larger is larger - bifurcation wider
Elevates the posterior portion of the tongue and narrows the fauces

27. Clinical root
When the tissue becomes inflamed
Portion of the root seen in the oral cavity
Small linear depression
When the dentin is exposed

28. 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
Supplies blood to the brain and the eyes
Set of arches found farther in the back of the throat
Found only in multi-rooted teeth and resists rotational forces

29. Convects
Curve outward
Forms the remaining 2/3 of the hard and soft palate uvula
Second teeth next to central incisors
Small yellowish glands on the labial mucosa

30. Intertubular Dentin
Vestibule - vestibule fornix - labial mucosa - buccal mucosa - parotid papilla - Stenson's duct - linea alba - Fordyce's spots - alveolar mucosa - gingiva - labial frenum - buccal frenum
Forming organ takes shape and resembles the shape of a bell
Dentin found between the tubules
The corners of the mouth where the top and bottom lip meet

31. Cortical Bone
Creates the wall of the dentinal tubule
Two vertical extensions of the mandible
Compact bone plate of the facial and lingual surfaces
Supplies blood to the roots and periodontal ligaments of the interior teeth

32. Labial-Mental Groove
The groove below the lower lips that separates the lips from the chin
Forming organ takes shape and resembles the shape of a bell
Forms into dentin - cementum and pulp of the teeth
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip

33. Dentinal Tubules
Extends from the medial corner of the eye to the nasal cavity
Tubules that pass through the entire surface of the dentin
Joined at the midline and are often referred to as the median Palatine suture
Supplies blood to the brain and the eyes

34. Incisive Arteries
Supplies blood to the roots and periodontal ligaments of the interior teeth
Resist rotational forces and hold teeth in inter-proximal contact
Portion of the lips where the skin meets the vermilion zone
The tip of the chin

35. Fibroblasts
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids
Cells From which connective tissue evolve
Shaping the tongue during speech - mastication and swallowing
Genioglossus - hyoglossus - styloglossus - palatoglossus

36. Meniscus
Elevates the posterior portion of the tongue and narrows the fauces
Small head - low nasal bridge - thin upper lip - small mandible
Disk that acts like a cushion between the temporal bone and the condyloid process
Cells develop into different tissues

37. Nasmyths Membrane
Covering over the enamel that is left over from the epithelium ameloblasts
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine
Resists intrusive forces that try to push the tooth inwards
The layer of dentin that surrounds the pulp

38. Philtrum
Vertical groove on the midline of the upper lip
The deepest point of the vestibule
Teeth will not erupt in proper position
A rounded area beyond the last posterior maxillary tooth

39. Fungiform Papillae
Resists forces that try to pull the tooth outward
To lubricate the oral cavity and to moisten food
Papillae that give the tongue the strawberry effect
Maxillary third molar

40. What is another name for premolars?
Vertical groove on the midline of the upper lip
Peg shaped crown with a smooth surface
Bi-cuspids
The disc becomes displaced

41. Inferior Alveolar Artery
Distends the ramus - enters the mandibular foramen and bifurcates around the first premolar tooth to form the incisive and the mental arteries
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle
An extension of an unattached gingiva and the tooth
Supplies blood to the brain and the eyes

42. Xygomatic bones
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
A dense tissue covered with mucous membrane that can withstand chewing
Forming organ takes shape and resembles the shape of a bell
Cheek bones--the most breakable bone in the body

43. What is Ankyloglossia and who can treat it / What is the treatment called?
Follows the inside of the ramus and the body of the mandible
Papillae that give the tongue the strawberry effect
A condition where the lower frenum attachment is very short/DDS/frenectomy
Molars

44. Ala of the Nose
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue
Radiates from the developmental groove
Occlusal surface of the posterior tooth
The outer edge of the nostril

45. Lingual
Inside surface Which is towards the tongue - on anterior teeth
A bat shaped bone which forms the anterior portion of the skull
Formed by the uniting of lobes during development of crown
Bifurcated/ 5 cusps

46. Muscle origine
The fixed attachment of a muscle
Small dark brushes
A triangular area located behind the last molar
Middle two teeth in the mouth

47. Apical Fiber Group
Exits the mandibular canal at the mental foramen and supplies the chin and lower lip
Week 11
Resists forces that try to pull the tooth outward
Forms the remaining 2/3 of the hard and soft palate uvula

48. Stomedeum
Smaller branch that ennervates the soft palate uvula and tonsils
Bifurcated/ 5 cusps
Cells develop into different tissues
Primitive mouth

49. Gland
32
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx
Cluster of tissue that manufactures and secrets fluid
Divides the crown and the root

50. Xerostomia
Natural teeth in position
The ridges that run horizontally across the hard palate behind the incisive papilla
Linear elevation of the tooth
Excess dryness of the mouth