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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. Function of Digastric
Triferacated
Enamel forming cells
A bony projection that separates each socket
Lift the hyoid bone and assist in opening the mouth

2. Vermilion Border
Portion of the lips where the skin meets the vermilion zone
Enamel forming cells
Cells that form cementum
Resists intrusive forces that try to push the tooth inwards

3. Cyto differentiation
12 years
No bicuspids/ no 3rd molars
The development of different cells
Tissue fluid surrounding the cell membrane of the odontoblast

4. Fibroblasts
The deepest point of the vestibule
Cells From which connective tissue evolve
Constricts the nasopharyngeal passage and elevates the larynx
Located on the inside of the body of the ramus

5. Mamelons
Hinge motion and gliding movement
Of or pertaining to area surrounding naval cavity
Three bulges on the incisal edge
Initiation of the tooth begins

6. Agenesis
Occurs in unusual ways and distorted crowns may appear
Compact bone plate of the facial and lingual surfaces
The fixed attachment of a muscle
Shaping the tongue during speech - mastication and swallowing

7. What are the 4 muscles of the floor of the mouth?
Third tooth from the midline
Digstric - Mylohyoid - stylohyoid - geniohyoid
Layers of tooth tissue become calcified
Retracts the tongue and raises the tip of the tongue

8. How many teeth are in the Primary teeth?
The cornerstone of the mouth
Respiratory system - digestive system and glandular organs
Shed from the oral cavity
20

9. Bud stage
Forms the remaining 2/3 of the hard and soft palate uvula
Middle two teeth in the mouth
Function to resist rotational forces and tilting
Initiation of the tooth begins

10. Posterior Teeth
The teeth located at the back of the mouth
A line of demarcation between the attached gingiva and alveolar mucosa
Two
A duct that empties into the mouth thru the parotid papilla - Parotid gland goes with Stensen's duct

11. Landmarks
Shed from the oral cavity
Skeletal or soft tissue structures used as reference points in describing locations of anatomical structures or taking measurements
Cells that form dentin
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface

12. TMJ bones are bathed In what solution?
Function to resist rotational forces and tilting
Synovial fluid
Depresses the tongue
Two cortical bone plates that come together between each tooth

13. Sphenoid
The deepest point of the vestibule
A bat shaped bone which forms the anterior portion of the skull
A dense tissue covered with mucous membrane that can withstand chewing
The groove below the lower lips that separates the lips from the chin

14. Lesser Palatine Foramen
Distends the ramus - enters the mandibular foramen and bifurcates around the first premolar tooth to form the incisive and the mental arteries
Genioglossus - hyoglossus - styloglossus - palatoglossus
Two smaller openings located behind the greater Palatine Foramen in the posterior region of the hard palate
Tributary of the facial vein which connects the facial vein to the pterygoid plexus of the veins

15. Tome's process
Duct located on the parotid papilla
Greater - lesser - naso palatine nerves
Fifth cusp located on the mesial surface lingual surface of maxillary first molars
Responsible for laying down the enamel matrix into place

16. What is the most common problem with TMJ
Formed by the uniting of lobes during development of crown
Calcified masses of dentin
A raised area of tissue laying behind the maxillary central incisors on the hard palate
The disc becomes displaced

17. Epithelial Attachment
Portion covered with cementum
Skeletal or soft tissue structures used as reference points in describing locations of anatomical structures or taking measurements
Elevated area fo enamel that extends obliquely across the occlusal surface of the tooth
The gingiva in the floor of the gingival sulcus that attaches to the enamel

18. Function of Geneoglossus?
Retracts or depresses the tongue
Radiates from the developmental groove
Tributary of the facial vein which connects the facial vein to the pterygoid plexus of the veins
Follows the length of the body of the mandible past the last tooth and up to the ramus

19. What is Ankyloglossia and who can treat it / What is the treatment called?
Middle two teeth in the mouth
Study of prenatal growth and the developing process of an individual
A condition where the lower frenum attachment is very short/DDS/frenectomy
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

20. Lingual Foramen
The study of the microscopic structure and functions of tissues
The internal surface at the center of the mandible
Two weeks thru 8th week
Incremental line indicating trauma of birth

21. Peritubular Dentin
Disk that acts like a cushion between the temporal bone and the condyloid process
Creates the wall of the dentinal tubule
Demonstrates a disturbance in the body metabolism
Supplies blood to the roots and periodontal ligaments of the molars and premolars

22. Filiform Papillae
A shallow v-shaped depression located below the bottom of the nose and above the lips
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue
Lower arch of the teeth
Outside surface Which is towards the cheek - on posterior teeth

23. Interdental Ligament Group
Resist rotational forces and hold teeth in inter-proximal contact
32
No bicuspids/ no 3rd molars
Wings of the sphenoid bone

24. Function of Sternocleidomastoid
Assist in the movement and functioning of the tongue
Assists in elevating the chin
Convex area on the lingual surface near gingiva
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged

25. Buckle groove
Dividing point of a multi-rooted tooth
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth
Small raised projections where taste buds are located
Stained growth rings in dentin

26. Histo Differentation
A flap of tissue on the on the buccal mucosa
Looking at the border of the tongue
A small projection in the middle of the upper lip
The development of different tissues

27. Incisive Papilla
A small projection in the middle of the upper lip
A raised area of tissue laying behind the maxillary central incisors on the hard palate
Folds of tissue to the the lingual veins
Constricts the nasopharyngeal passage and elevates the larynx

28. Maxilla
The line of demarcation between the attached gingiva and the marginal gingiva
Teeth after cuspids
Largest facial bone with two sections joined at the median suture
More common in girls--the failure of the palatal shelves to fuse with the primary palate (1 in 2500 births)

29. Buccal
Outside surface Which is towards the cheek - on posterior teeth
Triangular space in the gingival direction when two adjacent teeth are in contact
Retracts or depresses the tongue
Exits the mandibular canal at the mental foramen and supplies the chin and lower lip

30. Palantine Tonsils
Genioglossus - hyoglossus - styloglossus - palatoglossus
4/5 cusps/ 3 roots
Canal or passage for fluid
Located in a depressed area between the pillars

31. Cingulum
Drains the floor of the mouth
Largest division of the trigeminal nerve
Band of fibrous tissue which attaches bone to bone
Convex area on the lingual surface near gingiva

32. Xygomatic bones
The development of different tissues
The corners of the mouth where the top and bottom lip meet
Draws the hyoid bone superiorly and posteriorly and stabilizes it
Cheek bones--the most breakable bone in the body

33. Maxillary Nerve Branch
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx
The cornerstone of the mouth
The layer of dentin that surrounds the pulp
A bony projection that separates each socket

34. Embrasure
A line of tissue that extends from the tongue to the floor of the mouth
Teeth will not erupt in proper position
Triangular space in the gingival direction when two adjacent teeth are in contact
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged

35. Evanesce
Supplies blood to the temporal muscle - masseter muscle - pterygoid muscle and buccanator
Full deep rich sound in nasal cavity
To dissolve
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth

36. Denticion
Cluster of tissue that manufactures and secrets fluid
A junction or center of veins that directly or indirectly drain a vast area
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein
Natural teeth in position

37. Salivary Glands
Two vertical extensions of the mandible
Secrete saliva to assist in process of digestion
Constricts the nasopharyngeal passage and elevates the larynx
9 weeks thru birth

38. Mental Protuberance
The tip of the chin
2 small raised folds of tissue where the lingual frenum attaches
A triangular area located behind the last molar
Separates the developing oral cavities from the nasal cavities

39. Triangular Ridge
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface
Forms into the inner lining of the oral cavitiy and enamel of the teeth
4 cusps/ bifurcated
Triangular space in the gingival direction when two adjacent teeth are in contact

40. Neonatal line
Incremental line indicating trauma of birth
The internal surface at the center of the mandible
Papillae that give the tongue the strawberry effect
Layers of tooth tissue become calcified

41. Internal Jugular Vein
Looking at the border of the tongue
A duct that empties into the mouth thru the parotid papilla - Parotid gland goes with Stensen's duct
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein
When the tissue becomes inflamed

42. Ectoderm
Enamel forming cells
Forms into the inner lining of the oral cavitiy and enamel of the teeth
Outside surface Which is towards the cheek - on posterior teeth
The study of the microscopic structure and functions of tissues

43. Labial Commissures
Vestibule - vestibule fornix - labial mucosa - buccal mucosa - parotid papilla - Stenson's duct - linea alba - Fordyce's spots - alveolar mucosa - gingiva - labial frenum - buccal frenum
Corners of the mouth
4th week
Primary and permanent

44. Function of Styloglossus
Two weeks thru 8th week
Retracts the tongue and raises the tip of the tongue
Where the ectoderm layer matures into the enamel
A bat shaped bone which forms the anterior portion of the skull

45. Parotid glands
Branches off the inferior alveolar artery before intering the mandibular canal
The largest of the salivary glands which lie just below and in front of the ear
Natural teeth in position
Trigeminal nerve--because it ennervates the maxilla and the mandible

46. Anomalies
Joined at the midline and are often referred to as the median Palatine suture
Extreme variations from the norm
The bone that separates the root on a tooth
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

47. What are the 2 sets of teeth?
Primary and permanent
Cluster of tissue that manufactures and secrets fluid
Formed by the uniting of lobes during development of crown
Compact bone plate of the facial and lingual surfaces

48. How is the TMJ supported and what controls their movement?
Ligaments and muscles of mastication
The inner surface of the lips
The mandibular molars
Narrow long enamel tuft

49. Mantle Dentin
The first predentin that is formed and matures within the tube
Supplies blood to the roots and periodontal ligaments of the interior teeth
The ridges that run horizontally across the hard palate behind the incisive papilla
A shallow v-shaped depression located below the bottom of the nose and above the lips

50. What is the maxillary cuspid known as?
A pocket formed by the soft tissue of cheeks and gingiva
Supplies blood to the face and oral cavity
Small curved lines that run parellel to the CEJ
The cornerstone of the mouth